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Course: AQA A Level Biology 7402
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Curriculum

AQA A Level Biology 7402

1. Biological Molecules

0/102

2. Cell Structure

0/95

3. Exchange and Transport

0/98

4. Genetics, Variation and Interdependence

0/94

5. Energy Transfers In and Between Organisms (A Level only)

0/63

6. Organisms Respond to Changes in their Environments (A Level only)

0/93

7. Genetics, Populations, Evolution and Ecosystems (A Level only)

0/55

8. The Control of Gene Expression (A Level only)

0/72

9. Exam Guidance and Skills

0/38
Quiz

6.1.9 Investigating Touch and Temperature Receptors – Unit exam questions

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  • Questions count: 12
  • Passing grade: B+
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1.
The refractory period ensures that:
Impulses travel in one direction
Action potentials are larger
Myelin forms
Na+ channels stay open
2.
Which statement about muscle types is correct?
Smooth muscle is involuntary and non-striated
Cardiac muscle is voluntary and striated
Smooth muscle is striated and multinucleated
Skeletal muscle is involuntary
3.
A student described the formation and elimination of urine as follows. In which step is the error? Step 1: Blood is filtered from the glomerulus into Bowman's capsule. Step 2: The filtrate passes through the renal tubule, where water and glucose are reabsorbed. Step 3: Urine collects in the collecting duct and then the ureter. Step 4: Urine moves from the ureter to the urethra and is then stored in the bladder.
Step 1
Step 2
Step 3
Step 4
4.
IGCSE Biology 14.3 Synapse - Question 2
IGCSE Biology 14.3 Synapse - Question 2
A
B
C
D
5.
Which band of the sarcomere does NOT change length during contraction?
I band
H zone
A band
Sarcomere
6.
Which drug action in the table prolongs the signal by keeping transmitter in the synapse?
Blocking receptors
Blocking reuptake
Reducing release
Destroying vesicles
7.
Myelin speeds conduction because impulses:
travel in both directions
jump between nodes of Ranvier
are stronger
do not need ions
8.
The role of Ca2+ in contraction is to:
Bind troponin, moving tropomyosin off binding sites
Break cross-bridges
Hydrolyse ATP directly
Bind myosin heads
9.
Which statement best describes Cardiac muscle?
The framework of 206 bones that supports the body, protects organs and allows movement.
Striated and under voluntary control; moves the skeleton.
Lighter bone with spaces, found at the ends; contains red marrow.
Found only in the heart; contracts rhythmically without tiring.
10.
Why does heart rate increase during exercise?
To cool the blood
To reduce blood pressure
To lower the rate of respiration
To supply more oxygen and glucose to muscles
11.

A myelin sheath speeds up conduction because

it carries ions
it widens the axon
the impulse jumps from node to node (saltatory conduction)
it makes neurotransmitter
12.
Glucose entering a red blood cell through a carrier protein, down its concentration gradient, is _____.
simple diffusion
facilitated diffusion
active transport
osmosis
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Part of 6. Organisms Respond to Changes in their Environments (A Level only) — see every lesson and quiz in this unit.
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