Test
0654 B9 Coordination & Response Quiz
Preguntas del test (25)
1The diagram represents a simple reflex arc.
What is the sequence of nerve cells through which an impulse passes during a reflex action?
- AA (First) P --> Q --> R (Last)
- BB (First) Q --> R --> P (Last)
- CC (First) Q --> P --> R (Last)
- DD (First) R --> P --> Q (Last)
2The diagram shows a neurone. Which structures could be found at X and Y?
- AA X: brain; Y: intestine.
- BB X: brain; Y: leg.
- CC X: eye; Y: hand.
- DD X: gland; Y: spinal chord.
3What will be the effect of strenuous exercise on the volume of water lost through the skin and the kidneys?
- AA
- BB
- CC
- DD
4The diagram shows a section through an eye.
Which structure controls how much light enters the pupil?
- AA
- BB
- CC
- DD
5What are the effects of adrenaline?
- AA Breathing Rate: decreased; Pulse Rate: decreased
- BB Breathing Rate: increased; Pulse Rate: increased
- CC Breathing Rate: increased; Pulse Rate: no effect
- DD Breathing Rate: no effect; Pulse Rate: increased
6A person has been sitting in a room at 35 °C for 30 minutes.
What would be the effect of then drinking several glasses of iced water?- AA Blood Temperature: falls ; Rate of Sweating: falls
- BB Blood Temperature: falls ; Rate of Sweating: rises
- CC Blood Temperature: rises ; Rate of Sweating: falls
- DD Blood Temperature: rises ; Rate of Sweating: rises
7Which organ produces a hormone?
- AA heart
- BB lung
- CC ovary
- DD spinal cord
8The diagram shows the structures involved in a reflex action.
What is the sequence in which impulses pass through these structures?
- AA P → S → R → Q
- BB Q → R → S → P
- CC Q → P → R → S
- DD S → P → Q → R
9Which part of the human eye is sensitive to light?
- AA iris
- BB lens
- CC optic nerve
- DD retina
10The diagram shows an experiment to investigate the response of a plant stem to gravity.
What is a suitable control for this experiment?
- AA
- BB
- CC
- DD
11Why do mammals sweat?
- AA to cool the body
- BB to lose water vapour through the skin surface
- CC to release energy through the oxidation of glucose
- DD to remove glucose from the blood
12The diagram shows a section through part of the human eye.
When a person looks at an object which is far away from their eye, which of the following happens?
- AA suspensory ligaments: slacken; lens: becomes fatter
- BB suspensory ligaments: slacken; lens: becomes thinner
- CC suspensory ligaments: tighten; lens: becomes fatter
- DD suspensory ligaments: tighten; lens: becomes fatter
13The diagram shows a capillary loop in the skin of a mammal.
What will the capillary loop look like if the mammal becomes cold?
- AA
- BB
- CC
- DD
14The diagram shows muscles and bones in a person’s arm.
What happens to the muscles as the weight is lowered?
- AA Biceps: lengthens; Triceps: lengthens
- BB Biceps: lengthens; Triceps: shortens
- CC Biceps: shortens; Triceps: lengthens
- DD Biceps: shortens; Triceps: shortens
15The diagram shows the density of rods and cones across a horizontal section of the retina.
What is the position of the optic nerve?
- AA
- BB
- CC
- DD
16What are the effects of insulin and glucagon on the concentration of blood glucose?
- AA
- BB
- CC
- DD
17How does the skin react when the body becomes very warm?
- AA
- BB
- CC
- DD
18Which diagram shows a sensory neurone?
- AA
- BB
- CC
- DD
19The diagram shows the muscles that control the size of the pupil in an eye.
How do the muscles make the pupil smaller?
- AA
- BB
- CC
- DD
20What would be the effects of vasodilation and sweating on the body temperature and on the amount of moisture on the surface of the skin?
- AA
- BB
- CC
- DD
21What would be the pupil size and lens shape of a person reading a mobile phone text message in a brightly-lit room?
- AA
- BB
- CC
- DD
22The table shows a student’s water losses on a cool day.
On a hot day the student’s water intake was the same as on the cool day.
On the hot day, which water losses would increase and which would decrease?
- AA increase: in sweat; decrease: in expired air.
- BB increase: in sweat; decrease: in urine.
- CC increase: in urine; decrease: in faeces .
- DD increase: in urine; decrease: in sweat.
23After a meal containing carbohydrates, which row shows the changes in concentration of glucose
and urea in the blood as it passes through the liver?
- AA
- BB
- CC
- DD
24Which response is a result of geotropism?
- AA flowers being produced
- BB growing bigger leaves
- CC roots growing downwards
- DD seeds germinating
25Which target organ releases glucose into the blood-stream as a result of the action of adrenaline?
- AA adrenal gland
- BB kidney
- CC liver
- DD pancreas
Información
- Descripción
- Quiz for IGCSE Coordinated Sciences on Coordination and Response
- Autor
- Jeffrey Piggott
- Idioma
- English
- Visitas
- 8.207
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