AQA GCSE Biology B1- Quiz

Pregunta 1 de 57

1

Which of these food groups are used primarily to release energy, and aid in the building of cells?

Selecciona una o más de las siguientes respuestas posibles:

Lipids (more commonly referred to as fats)
Carbohydrates
Vitamins
Mineral ions
Proteins
Fibre

Explicación

Pregunta 2 de 57

1

Malnourishment is most accurately described as a condition caused by not eating enough food, leading to the sufferer becoming dangerously underweight.

Selecciona uno de los siguientes:

VERDADERO
FALSO

Explicación

Pregunta 3 de 57

1

Which of these answers best describes the process in which a person loses mass?

Selecciona una de las siguientes respuestas posibles:

A person loses mass when the energy content of the food taken in is less than the amount of energy expended by the body.
A person loses mass when the energy content of the food taken in is more than the amount of energy expended by the body.
A person loses mass when the energy content of the food taken in is reduced, even when this reduction is proportional to a decline in physical activity.
A person loses mass by having the amount of energy expended by the body incredibly high, even when this increase in expenditure is compensated for with a proportionally high energy content of food being taken in.

Explicación

Pregunta 4 de 57

1

Metabolic rate is the rate at which all the chemical reactions in the cells of the body are carried out.

Selecciona uno de los siguientes:

VERDADERO
FALSO

Explicación

Pregunta 5 de 57

1

Which of the following are the main factors affecting metabolic rate, according to the specification?

Selecciona una o más de las siguientes respuestas posibles:

The amount of activity a person does.
Hereditary factors.
The proportion of muscle to fat in a person's body.

Explicación

Pregunta 6 de 57

1

A person's cholesterol level is solely based on their diet.

Selecciona uno de los siguientes:

VERDADERO
FALSO

Explicación

Pregunta 7 de 57

1

High levels of cholesterol in the blood increases the risk of developing plaques in the walls of the arteries, which can lead to clotting, thus preventing oxygenated blood from getting to the heart and causing a heart attack. How does saturated fat (the fat found in animal products) affect the cholesterol level?

Selecciona una de las siguientes respuestas posibles:

Saturated fats raise a person's blood cholesterol levels.
Saturated fats lower a person's blood cholesterol levels.

Explicación

Pregunta 8 de 57

1

What does the LDL of LDL cholesterol stand for?

Selecciona una de las siguientes respuestas posibles:

Low-density lipoprotein.
Low-density lipid.
Light-density lipid.

Explicación

Pregunta 9 de 57

1

Finish this statement: microbes that cause infectious disease are called...

Selecciona una de las siguientes respuestas posibles:

pathogens.
phagocytes.
passogens.

Explicación

Pregunta 10 de 57

1

An epidemic occurs when a disease affects a whole country or goes worldwide.

Selecciona uno de los siguientes:

VERDADERO
FALSO

Explicación

Pregunta 11 de 57

1

How do pathogens directly make people feel ill?

Selecciona una o más de las siguientes respuestas posibles:

Pathogens release toxins in the body.
Viruses reproduce in our body cells, destroying the cells in the process.
Viruses take the place of oxygen with our haemoglobin, preventing the production of oxyhaemoglobin, leading people to asphyxiation.
Bacteria consume capillaries, as the capillaries are one cell thick and so easy to digest.

Explicación

Pregunta 12 de 57

1

Lymphocytes are white blood cells that ingest pathogens.

Selecciona uno de los siguientes:

VERDADERO
FALSO

Explicación

Pregunta 13 de 57

1

Lymphocytes are the white blood cells which release antibodies, which then neutralise the specific antigen present in the body.

Selecciona uno de los siguientes:

VERDADERO
FALSO

Explicación

Pregunta 14 de 57

1

Which of these methods describes the most effective and modern process in which a person is made immune to a bacteria, and can often reduce the spread of the pathogen amongst a large population?

Selecciona una de las siguientes respuestas posibles:

Vaccination.
Cauterisation.
Inoculation.
Amputation.

Explicación

Pregunta 15 de 57

1

What was the name of the doctor that recognised the importance of hand-washing in the prevention of spreading some infectious diseases?

Selecciona una de las siguientes respuestas posibles:

Joseph Lister.
Ignaz Semmelweis.
The name of the doctor is unknown.
Louis Pasteur.

Explicación

Pregunta 16 de 57

1

Painkillers reduce the symptoms of infectious disease by killing a limited number of pathogens.

Selecciona uno de los siguientes:

VERDADERO
FALSO

Explicación

Pregunta 17 de 57

1

Certain antibiotics can kill all forms of pathogens depending on the dosage.

Selecciona uno de los siguientes:

VERDADERO
FALSO

Explicación

Pregunta 18 de 57

1

Whilst the use of antibiotics has greatly reduced deaths from infectious bacterial diseases, overuse and inappropriate use of antibiotics has increased the rate of development of antibiotic resistant strains of bacteria. Which of the following is one such bacterium?

Selecciona una de las siguientes respuestas posibles:

MRSA
Salmonella enteritidis
E. coli
Smallpox

Explicación

Pregunta 19 de 57

1

Mutations of pathogens produce new strains. Antibiotics and vaccinations may no longer be effective against a new resistant strain of the pathogen. The new strain will then spread rapidly because people are not immune to it and there is no effective treatment. As such, which of the following are steps relevant to the process of resistance?

Selecciona una o más de las siguientes respuestas posibles:

Antibiotics kill individual pathogens of the non-resistant strain.
Individual resistant pathogens survive and reproduce, so the population of the resistant strain increases.
Now, antibiotics are not used to treat non-serious infections, such as mild throat infections, so that the rate of development of resistant strains is slowed down.
The rare case in which viruses gradually become resistant to antibiotics allows them to reproduce quickly, and as such further antibiotics are ineffectual against them.
Due to the nature of some bacterial infections, a doctor can afford to be incautious when prescribing antibiotics.
The development of antibiotic-resistant strains of bacteria necessitates the development of new antibiotics.

Explicación

Pregunta 20 de 57

1

People can be immunised against a disease by introducing small quantities of dead or inactive forms of the pathogen into the body (vaccination). How does this work?

Selecciona una de las siguientes respuestas posibles:

Vaccines stimulate the white blood cells to produce antibodies that destroy the pathogens. This makes the person immune to future infections by the microorganism. The body can respond by rapidly making the correct antibody, in the same way as if the person had previously had the disease.
Vaccines stimulate the red blood cells to produce antibodies that destroy the pathogens. This makes the person immune to future infections by the microorganism. The body can respond by rapidly making the correct antibody, in the same way as if the person had previously had the disease.
Vaccines stimulate the white blood cells to produce antibodies that destroy the pathogens. This makes the person immune to future infections by the microorganism. The body can respond by rapidly making the correct phagocytes, in the same way as if the person had previously had the disease.
Vaccines stimulate the phagocytes to produce antibodies that destroy the pathogens. This makes the person immune to future infections by the microorganism. The body can respond by rapidly making the correct antibody, in the same way as if the person had previously had the disease.

Explicación

Pregunta 21 de 57

1

Uncontaminated cultures of microorganisms are required for investigating the action of disinfectants and antibiotics. For this process to take place, which of the following steps must be taken out?

Selecciona una o más de las siguientes respuestas posibles:

Petri dishes and culture media must be sterilised before use to kill unwanted microorganisms.
Inoculating loops used to transfer microorganisms to the media must be sterilised by passing them through a flame.
The lid of the Petri dish should be secured with adhesive tape to prevent microorganisms from the air contaminating the culture.
The Petri dish must be contained within a vacuum in order to ensure to bacteria can contaminate the culture.
The nutrient jelly (agar) mustn't be touched or breathed on in order to prevent contaminating the culture.

Explicación

Pregunta 22 de 57

1

At what temperature should cultures be incubated at in schools and college laboratories in order to reduce the risk of growth of pathogens that are potentially harmful to humans?

Selecciona una de las siguientes respuestas posibles:

37°C
27°C
25°C
20°C
30°C

Explicación

Pregunta 23 de 57

1

What is the purpose of the nervous system?

Selecciona una de las siguientes respuestas posibles:

The nervous system enables humans to react to their surroundings and coordinate their behaviour.
The nervous system provides a pathway for hormones to travel through the body.

Explicación

Pregunta 24 de 57

1

Cells called receptors detect stimuli (changes in the environment). Which of the following are the correct combinations of receptors and their respective primary stimuli?

Selecciona una o más de las siguientes respuestas posibles:

Receptors in the eyes that are sensitive to light.
Receptors in the ears that are sensitive to sound.
Receptors in the ears that are sensitive to changes in position and enable us to keep our balance.
Receptors on the tongue and in the nose that are sensitive to chemicals and enable us to taste and to smell
Receptors in the skin that are sensitive to touch, pressure, pain and to temperature changes.
Receptors in the skin that are sensitive to light.
Receptors in the eyes that are sensitive to touch, pressure, pain and to temperature changes.
Receptors in the ears which are sensitive to chemicals.

Explicación

Pregunta 25 de 57

1

Light receptor cells, like most animal cells, have a nucleus, cytoplasm and cell membrane.

Selecciona uno de los siguientes:

VERDADERO
FALSO

Explicación

Pregunta 26 de 57

1

Information from receptors passes along cells (neurones) in nerves to the brain. The brain coordinates the response. Reflex actions are automatic and rapid, and often involve three types of neurones. What are these three types of neurones?

Selecciona una o más de las siguientes respuestas posibles:

Relay.
Motor.
Sensory.
Mechanical.
CNS.
Spinal.
Synapse.

Explicación

Pregunta 27 de 57

1

Candidates should understand the role of receptors, sensory neurones, motor neurones, relay neurones, synapses and effectors in simple reflex actions. In a simple reflex action, which of the following statements are involved?

Selecciona una o más de las siguientes respuestas posibles:

Impulses from a receptor pass along a sensory neurone to the central nervous system.
At a junction (synapse) between a sensory neurone and a relay neurone in the central nervous system, a chemical is released that causes an impulse to be sent along a relay neurone.
A chemical is then released at the synapse between a relay neurone and motor neurone in the central nervous system, causing impulses to be sent along a motor neurone to the organ (the effector) that brings about the response.
The effector is either a muscle or a gland, a muscle responds by contracting and a gland responds by releasing (secreting) chemical substances.
In some cases, the receptor is also the effector, and so the stimuli is immediately responded to due to the rapid speed of the impulses travelling such a short distance.
There are no chemicals involved in a simple reflex action, making the reflex action much quicker, and hence why the reflex action is described as simple.

Explicación

Pregunta 28 de 57

1

Internal conditions of the body that are constantly controlled include which of the following?

Selecciona una o más de las siguientes respuestas posibles:

The water content of the body.
The ion content of the body.
Temperature.
Blood sugar levels.
Neurone activity.
White blood cell levels.

Explicación

Pregunta 29 de 57

1

Which organ helps most in keeping the balance of water and ions in a person's body?

Selecciona una o más de las siguientes respuestas posibles:

Liver.
Kidneys.
Lungs.
Pancreas.

Explicación

Pregunta 30 de 57

1

How does the human body maintain water content in the body?

Selecciona una o más de las siguientes respuestas posibles:

Breathing.
Sweating.
Urinating.
Thinking.
Osmosis.

Explicación

Pregunta 31 de 57

1

An SAS survival manual gives advice on how to conserve water. Which of the following are most likely to be mentioned?

Selecciona una o más de las siguientes respuestas posibles:

Don't eat.
Don't lie on the hot ground.
Don't lie in the shade.
Avoid exertion.
Talk as little as possible.
Panting will help.

Explicación

Pregunta 32 de 57

1

What is the term allocated to the organs a hormone affects?

Selecciona una de las siguientes respuestas posibles:

Target organs.
Specified organs.
Hormonal organs.
Neurone organs.

Explicación

Pregunta 33 de 57

1

Hormones regulate the functions of many organs and cells. For example, the monthly release of an egg from a woman’s ovaries and the changes in the thickness of the lining of her womb are controlled by hormones secreted by the pituitary gland and by the ovaries. Which of these hormones begins the menstrual cycle?

Selecciona una de las siguientes respuestas posibles:

FSH (Follicle stimulating hormone)
Oestrogen
LH (Luteinising hormone)

Explicación

Pregunta 34 de 57

1

Where is oestrogen secreted from?

Selecciona una de las siguientes respuestas posibles:

The ovaries.
The pituitary gland.
The pancreas.

Explicación

Pregunta 35 de 57

1

What are the two main hormones that are secreted by the pituitary gland in the menstrual cycle?

Selecciona una o más de las siguientes respuestas posibles:

Oestrogen
FSH
LH
Adrenaline

Explicación

Pregunta 36 de 57

1

What is the role played by FSH in the menstrual cycle?

Selecciona una de las siguientes respuestas posibles:

Follicle stimulating hormone (FSH) is secreted by the pituitary gland and causes eggs to mature in the ovaries. It also stimulates the ovaries to produce hormones including oestrogen.
Follicle stimulating hormone (FSH) is secreted by the ovaries and causes eggs to mature in the ovaries. It also stimulates the pituitary gland to produce hormones including oestrogen.
Follicle stimulating hormone (FSH) stimulates the release of eggs from the ovary.
Follicle stimulating hormone (FSH) is secreted by the ovaries and inhibits the further production of LH.

Explicación

Pregunta 37 de 57

1

Where is the pituitary gland located?

Selecciona una de las siguientes respuestas posibles:

In the brain.
Next to the pancreas.
Just above the ovaries.

Explicación

Pregunta 38 de 57

1

Hormones are used to help control fertility. They can be used to either as a contraceptive, or as an aid in fertilisation. If hormones are going to be used as a contraceptive, which two hormones might be used to inhibit egg maturation?

Selecciona una o más de las siguientes respuestas posibles:

Oestrogen
FSH
Progesterone
LH

Explicación

Pregunta 39 de 57

1

IVF stands for In Vitro Fertilisation.

Selecciona uno de los siguientes:

VERDADERO
FALSO

Explicación

Pregunta 40 de 57

1

Which of these answers best describes IVF?

Selecciona una de las siguientes respuestas posibles:

IVF involves giving a mother oestrogen and LH to stimulate the maturation of several eggs. The eggs are collected from the mother and fertilised by sperm from the father. The fertilised eggs develop into foetuses. At the stage when they are properly developed, one or two foetuses are inserted into the mother’s uterus (womb).
IVF involves giving a mother FSH and LH to stimulate the maturation of several eggs. The eggs are collected from the mother and fertilised by sperm from the father. The fertilised eggs develop into embryos. At the stage when they are tiny balls of cells, one or two embryos are inserted into the mother’s uterus (womb).
IVF involves giving a mother FSH and LH to stimulate the maturation of an egg. The egg is then collected from the mother and fertilised by sperm from the father. The fertilised egg develops into an embryo. At the stage when it is a tiny balls of cells, the embryo is inserted into the mother’s uterus (womb).
IVF involves giving a mother a specially developed chemical compound to stimulate the maturation of several eggs. The eggs are collected from the mother and fertilised by sperm from the father. The fertilised eggs develop into embryos. At the stage when they are tiny balls of cells, one or two embryos are inserted into the mother’s uterus (womb).

Explicación

Pregunta 41 de 57

1

Plants are mostly sensitive to light and moisture, but gravity does not affect them.

Selecciona uno de los siguientes:

VERDADERO
FALSO

Explicación

Pregunta 42 de 57

1

Plants produce hormones to coordinate and control growth. What is the name of the hormone which controls phototropism, and gravitropism (or geotropism)?

Selecciona una de las siguientes respuestas posibles:

Auxin
Ethylene
Jasmonates.

Explicación

Pregunta 43 de 57

1

Taking the information of this image into account, what would happen to a plant's shoot if there was light to the right of the plant?

Selecciona una de las siguientes respuestas posibles:

Auxins would build up on the left side of the plant, which would cause the shoot to grow to the right.
Auxins would build up on the right side of the plant, which would cause the shoot to grow to the right.

Explicación

Pregunta 44 de 57

1

Plant growth hormones are used in agriculture and horticulture as weed killers and as rooting hormones.

Selecciona uno de los siguientes:

VERDADERO
FALSO

Explicación

Pregunta 45 de 57

1

Scientists are continually developing new drugs. When new medical drugs are devised, they have to be extensively tested and trialled before being used. Drugs are tested in a series of stages to find out if they are safe and effective. New drugs are extensively tested for toxicity, efficacy and dose. Which of the following statements best reflects this?

Selecciona una o más de las siguientes respuestas posibles:

First, drugs are tested in the laboratory, using cells, tissues and eventually live animals
In clinical trials involving healthy volunteers and patients. Very low doses of the drug are given at the start of the clinical trial. If the drug is found to be safe, further clinical trials are carried out to find the optimum dose for the drug.
Certain drugs can move straight onto human volunteers if the doctors are confident enough that the effects that the drugs will have will not be of any detriment to the volunteer.
In some double blind trials, some patients are given a placebo, which does not contain the drug. Neither the doctors nor the patients know who has received a placebo and who has received the drug until the trial is complete.

Explicación

Pregunta 46 de 57

1

What is the effect the drugs statins have on the human body?

Selecciona una de las siguientes respuestas posibles:

Statins reduce a person's blood cholesterol and therefore greatly reduce their risk of getting heart disease.
Statins essentially block synapses, which acts as a pain relief due to the reflex arc being unable to be completed.
Statins are drugs which can lead to weight loss, as they deceive the human body into believing it can't consume any more energy from food content for a brief while, which leads people to lose weight when the statins are taken in conjunction with exercise.

Explicación

Pregunta 47 de 57

1

What was the drug thalidomide first developed for in the 1960s?

Selecciona una de las siguientes respuestas posibles:

It was developed as a sleeping pill.
It was developed as a morning sickness aid.
It was developed as an aid for leprosy.

Explicación

Pregunta 48 de 57

1

Alcohol and nicotine cause far more illness and death each year than all the illegal drugs put together.

Selecciona uno de los siguientes:

VERDADERO
FALSO

Explicación

Pregunta 49 de 57

1

Some people take drugs because they can make them feel different. This is called recreational drug use, and can refer to both legal and illegal drugs. Of the following substances, which amongst them are legal recreational drugs?

Selecciona una o más de las siguientes respuestas posibles:

Nicotine.
Caffeine.
Alcohol.
Cannabis.
Heroin.
Ecstasy.

Explicación

Pregunta 50 de 57

1

Cannabis smoke contains chemicals which may cause mental illness in some people.

Selecciona uno de los siguientes:

VERDADERO
FALSO

Explicación

Pregunta 51 de 57

1

Drugs change the chemical processes in peoples’ bodies so that they may become dependent or addicted to the drug and suffer withdrawal symptoms without them. Which two of these drugs are the most addictive?

Selecciona una o más de las siguientes respuestas posibles:

Caffeine.
Cocaine.
Alcohol.
Heroin.

Explicación

Pregunta 52 de 57

1

There are several types of drug that an athlete can use to enhance performance. Some of these drugs are banned by law and some are legally available on prescription, but all are prohibited by sporting regulations. Examples include stimulants that boost bodily functions such as heart rate; and drugs which stimulate muscle growth. Which of the following is a drug that stimulates muscle growth?

Selecciona una de las siguientes respuestas posibles:

Anabolic steroids.
Deltoids.
Juice.
LSD.

Explicación

Pregunta 53 de 57

1

Unlike animals, plants do not compete with one another.

Selecciona uno de los siguientes:

VERDADERO
FALSO

Explicación

Pregunta 54 de 57

1

Animals most often compete for food, territory and what other item from the following list?

Selecciona una de las siguientes respuestas posibles:

Mates.
Light.
Valuable gemstones.

Explicación

Pregunta 55 de 57

1

Unlike most animals, microorganisms do not have any adaptations.

Selecciona uno de los siguientes:

VERDADERO
FALSO

Explicación

Pregunta 56 de 57

1

What is the term allocated to organisms that live in environments that have very difficult conditions for life?

Selecciona una de las siguientes respuestas posibles:

Extremophile.
Xenophile.
Beadophile.
Oenophile.

Explicación

Pregunta 57 de 57

1

Animals and plants may be adapted for survival in the conditions where they normally live, e.g. deserts, or the Arctic. Animals may be adapted for survival in dry and arctic environments by means of which of the following?

Selecciona una o más de las siguientes respuestas posibles:

Changes to surface area
Thickness of insulating coat
Amount of body fat
Camouflage
Extensive root systems
Changes to surface area, particularly of the leaves

	Creado por Ethan Beadling hace alrededor de 9 años

These questions and answers have been created with the specification as an aid, so bear that in mind when reading up on the explanations afterwards. When finished, it will take all of Biology Unit 1 into account.

AQA GCSE Biology B1- Quiz

Pregunta 1 de 57

Which of these food groups are used primarily to release energy, and aid in the building of cells?

Selecciona una o más de las siguientes respuestas posibles:

Explicación

Pregunta 2 de 57

Malnourishment is most accurately described as a condition caused by not eating enough food, leading to the sufferer becoming dangerously underweight.

Selecciona uno de los siguientes:

Explicación

Pregunta 3 de 57

Which of these answers best describes the process in which a person loses mass?

Selecciona una de las siguientes respuestas posibles:

Explicación

Pregunta 4 de 57

Metabolic rate is the rate at which all the chemical reactions in the cells of the body are carried out.

Selecciona uno de los siguientes:

Explicación

Pregunta 5 de 57

Which of the following are the main factors affecting metabolic rate, according to the specification?

Selecciona una o más de las siguientes respuestas posibles:

Explicación

Pregunta 6 de 57

A person's cholesterol level is solely based on their diet.

Selecciona uno de los siguientes:

Explicación

Pregunta 7 de 57

Selecciona una de las siguientes respuestas posibles:

Explicación

Pregunta 8 de 57

What does the LDL of LDL cholesterol stand for?

Selecciona una de las siguientes respuestas posibles:

Explicación

Pregunta 9 de 57

Finish this statement: microbes that cause infectious disease are called...

Selecciona una de las siguientes respuestas posibles:

Explicación

Pregunta 10 de 57

An epidemic occurs when a disease affects a whole country or goes worldwide.

Selecciona uno de los siguientes:

Explicación

Pregunta 11 de 57

How do pathogens directly make people feel ill?

Selecciona una o más de las siguientes respuestas posibles:

Explicación

Pregunta 12 de 57

Lymphocytes are white blood cells that ingest pathogens.

Selecciona uno de los siguientes:

Explicación

Pregunta 13 de 57

Lymphocytes are the white blood cells which release antibodies, which then neutralise the specific antigen present in the body.

Selecciona uno de los siguientes:

Explicación

Pregunta 14 de 57

Which of these methods describes the most effective and modern process in which a person is made immune to a bacteria, and can often reduce the spread of the pathogen amongst a large population?

Selecciona una de las siguientes respuestas posibles:

Explicación

Pregunta 15 de 57

What was the name of the doctor that recognised the importance of hand-washing in the prevention of spreading some infectious diseases?

Selecciona una de las siguientes respuestas posibles:

Explicación

Pregunta 16 de 57

Painkillers reduce the symptoms of infectious disease by killing a limited number of pathogens.

Selecciona uno de los siguientes:

Explicación

Pregunta 17 de 57

Certain antibiotics can kill all forms of pathogens depending on the dosage.

Selecciona uno de los siguientes:

Explicación

Pregunta 18 de 57

Whilst the use of antibiotics has greatly reduced deaths from infectious bacterial diseases, overuse and inappropriate use of antibiotics has increased the rate of development of antibiotic resistant strains of bacteria. Which of the following is one such bacterium?

Selecciona una de las siguientes respuestas posibles:

Explicación

Pregunta 19 de 57

Selecciona una o más de las siguientes respuestas posibles:

Explicación

Pregunta 20 de 57

People can be immunised against a disease by introducing small quantities of dead or inactive forms of the pathogen into the body (vaccination). How does this work?

Selecciona una de las siguientes respuestas posibles:

Explicación