AQA AS Biology Questions

Description

A-Level Biology Quiz on AQA AS Biology Questions, created by Alex Lyes on 10/06/2017.
Alex Lyes
Quiz by Alex Lyes, updated more than 1 year ago
Alex Lyes
Created by Alex Lyes almost 7 years ago
361
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Resource summary

Question 1

Question
During the Benedict's test for [blank_start]reducing[blank_end] sugars, copper(II) [blank_start]sulphate[blank_end] goes to copper(I) [blank_start]oxide[blank_end] and forms a [blank_start]red[blank_end] precipitate.
Answer
  • reducing
  • sulphate
  • oxide
  • red

Question 2

Question
Maltose is formed from [blank_start]2[blank_end] [blank_start]alpha[blank_end] glucose
Answer
  • 2
  • 3
  • 4
  • alpha
  • beta

Question 3

Question
Sucrose is made from:
Answer
  • Glucose + Glucose
  • Glucose + Fructose
  • Glucose + Galactose

Question 4

Question
Glycogen is an [blank_start]energy[blank_end] source for [blank_start]animals[blank_end]. [blank_start]Starch[blank_end] is an energy source of plants. [blank_start]Celluose[blank_end] is a structural molecule for plants.
Answer
  • animals
  • energy
  • Starch
  • Celluose
  • water
  • plants
  • bacteria

Question 5

Question
Starch has [blank_start]unbranched[blank_end] chains and has a [blank_start]helical[blank_end] structure which means it is compact. You test for starch with the [blank_start]iodine test[blank_end] which uses [blank_start]potassium iodide[blank_end] solution. A positive result is [blank_start]blue-black[blank_end].
Answer
  • unbranched
  • branched
  • helical
  • linear
  • iodine test
  • emulsion test
  • benedict's test
  • potassium iodide
  • ethanol
  • blue-black
  • red
  • cloudy precipitate

Question 6

Question
Which is not a function of lipids:
Answer
  • Waterproofing
  • Insulating
  • Structural support
  • Protection

Question 7

Question
Collagen is a globular protein.
Answer
  • True
  • False

Question 8

Question
Water molecules are polar.
Answer
  • True
  • False

Question 9

Question
Label this diagram of ATP
Answer
  • Adenoside
  • Thymine
  • Ribose
  • Dyoxyribose
  • Phosphate
  • Calcium
  • Hydrogen

Question 10

Question
What type of enzyme inhibition is this?
Answer
  • Competitive

Question 11

Question
What type of enzyme inhibition is this?
Answer
  • Non-competitive

Question 12

Question
In DNA, the [blank_start]purine[blank_end] bases are adenine and guanine, and the [blank_start]pyrimidine[blank_end] bases are thymine and cytosine.
Answer
  • purine
  • pyrimidine

Question 13

Question
DNA replicates conservatively.
Answer
  • True
  • False

Question 14

Question
Label this diagram of a DNA nucleotide.
Answer
  • Phosphate
  • Deoxyribose Sugar
  • Base
  • Phosphate
  • Deoxyribose sugar
  • Base
  • Phosphate
  • Deoxyribose sugar
  • Base

Question 15

Question
Which stage of mitosis is this?
Answer
  • Prophase

Question 16

Question
Which stage of mitosis is this?
Answer
  • Anaphase

Question 17

Question
Label these organelles
Answer
  • Mitochondria
  • Nucleolus
  • Lysosome
  • Rough endoplasmic reticulum
  • Smooth endoplasmic reticulum
  • Golgi apparatus
  • Cytoplasm
  • Cell Surface Membrane

Question 18

Question
Active transport is the movement of molecules or ions in or out of a cell from a region on [blank_start]lower[blank_end] concentration to a region of [blank_start]higher[blank_end] concentration using ATP and [blank_start]carrier[blank_end] proteins.
Answer
  • lower
  • higher
  • carrier

Question 19

Question
Which is not a physical barrier to pathogens
Answer
  • Skin
  • Mucous membranes
  • White blood cells
  • Gut flora

Question 20

Question
Phagocytes are specific.
Answer
  • True
  • False

Question 21

Question
The [blank_start]Cellular[blank_end] Immune Response: 1) Phagocyte becomes an [blank_start]antigen presenting cell[blank_end] after it has destroyed the pathogen 2) The antigen presenting cell releases cytokines and the helper [blank_start]T[blank_end] cell is activated 3) The helper T cell stimulates the production of [blank_start]cytotoxic[blank_end] T cells 4) Perforin is produced which cause [blank_start]lysis[blank_end] of the cells infected with pathogens 5) Exposure to the specific antigen causes [blank_start]memory[blank_end] cells to be produced
Answer
  • lysis
  • memory
  • antigen presenting cell
  • Cellular
  • cytotoxic
  • T
  • B

Question 22

Question
[blank_start]Humoral[blank_end] Immune Response: 1) The phagocyte becomes an [blank_start]antigen presenting cell[blank_end] after it destroys the pathogen 2) The antigen presenting cell stimulates the helper T cell by releasing [blank_start]cytokines[blank_end] 3) The helper T cell stimulates the differentiation of [blank_start]B lymphocytes[blank_end] 4) Some B lymphocytes become [blank_start]plasma[blank_end] cells which release large quantities of specific [blank_start]antibodies[blank_end] 5) Some B lymphoctes become [blank_start]memory[blank_end] cells
Answer
  • Humoral
  • antigen presenting cell
  • cytokines
  • B lymphocytes
  • plasma
  • antibodies
  • memory

Question 23

Question
Select the statements that are true about Passive immunity
Answer
  • No memory cells formed
  • Introduction of antibodies from an outside source
  • Generaly long lasting
  • No direct contact with the pathogen required
  • Bodies own immune system is stimulated

Question 24

Question
Select the statements that are true about Active immunity.
Answer
  • Bodies own immune system is stimulated to produce antibodies
  • There are 2 types - natural and artificial
  • Antibodies come from an outside source
  • Long lasting immunity
  • Short lasting immunity

Question 25

Question
In fish, the blood and water flow in [blank_start]opposite[blank_end] directions. This is called [blank_start]countercurrent[blank_end] flow. This means a diffusion gradient is maintained all the way along the gill lamellae so almost all the oxygen diffuses out of the [blank_start]water[blank_end] into the [blank_start]blood[blank_end].
Answer
  • opposite
  • countercurrent
  • water
  • blood

Question 26

Question
Label this diagram of the lungs
Answer
  • Trachea
  • C-shaped cartilidge
  • Bronchi
  • Bronchioles
  • Alveoli

Question 27

Question
Which are not adaptations of the alveoli:
Answer
  • Thin walls
  • Small surface area
  • Red blood cells are slowed as they pass through pulmonary capillary
  • Fluctuating blood supply

Question 28

Question
A high affinity for oxygen in haemoglobin means that the haemoglobin takes up O2 less easily at lower partial pressures of O2.
Answer
  • True
  • False

Question 29

Question
Label this diagram of the heart.
Answer
  • Aorta
  • Vena Cava
  • Pulmonary artery
  • Pulmonary vein
  • LEFT
  • RIGHT
  • Left atrium
  • Right atrium
  • Right ventricle
  • Left ventricle
  • Pulmonary valve
  • Atrioventricular valve
  • Aortic valve
  • Apex
  • Coronary artery

Question 30

Question
Arteries have a [blank_start]thick[blank_end] muscular layer which can be constricted and dilated to control the volume of blood passing through them. They have a thick [blank_start]elastic[blank_end] layer which helps to maintain blood pressure by stretching and [blank_start]recoiling[blank_end]. The overall thickness of the artery help to prevent [blank_start]bursting[blank_end]. There are no [blank_start]valves[blank_end].
Answer
  • thick
  • thin
  • elastic
  • recoiling
  • bursting
  • valves

Question 31

Question
Veins have a [blank_start]thin[blank_end] muscular layer which can [blank_start]constrict[blank_end] to control the flow of blood. They have a thin elastic layer. They have very thin walls since the pressure is [blank_start]lower[blank_end] and means they can be flattened easily to aid the flow of blood. There are valves throughout which ensure the blood doesn't flow [blank_start]backwards[blank_end].
Answer
  • thin
  • thick
  • constrict
  • lower
  • higher
  • backwards
  • forwards

Question 32

Question
Splicing removes the introns from pre-mRNA.
Answer
  • True
  • False

Question 33

Question
The region of tRNA that is complementary to a codon on mRNA is called an [blank_start]anti-codon[blank_end].
Answer
  • anti-codon

Question 34

Question
During meiosis, the chromosome number [blank_start]halves[blank_end] and [blank_start]4[blank_end] haploid cells are are genetically [blank_start]different[blank_end] are produced.
Answer
  • halves
  • 4
  • different

Question 35

Question
Crossing over occurs during meiosis [blank_start]1[blank_end]
Answer
  • 1

Question 36

Question
Mutagenic agents increase the [blank_start]rate[blank_end] of mutations.
Answer
  • rate

Question 37

Question
What is the amino acid sequence for this sequence of mRNA UUC AGC GCG UAA
Answer
  • Alanine, Serine, Alanine, Stop codon
  • Alanine, Arginine, Alanine, Stop codon
  • Leucine, Arginine, Alanine, Tyrosine

Question 38

Question
A genetic bottleneck will [blank_start]reduce[blank_end] genetic diversity. It is an event which causes a big [blank_start]reduction[blank_end] in the population so will reduce the number of [blank_start]alleles[blank_end]. The survivors will reprodue and the larger population is created from [blank_start]a few[blank_end] indiviuals.
Answer
  • reduce
  • increase
  • reduction
  • rise
  • alleles
  • a few
  • many

Question 39

Question
Directional selection favours individuals with characteristics at the [blank_start]extremes[blank_end] of the population whereas stabilising selection favours individuals in the [blank_start]middle[blank_end] of the range when the environment [blank_start]isn't[blank_end] changing much.
Answer
  • extremes
  • middle
  • isn't
  • is

Question 40

Question
Complete the table for the species: Ceyx azureus
Answer
  • Kingdom
  • Phylum
  • Class
  • Order
  • Family
  • Ceyx
  • azureus
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