1.1.1 Which ONE of the following parts controls the amount of light entering the eye by influencing the size of the pupil?
A Sclera
B Cornea
C Retina
D Iris
1.1.2 The function of the umbilical vein is to transport …
A carbon dioxide from the foetus to the mother - NSC Life Sciences - Question 1 - 2023 - Paper 1
Question 1
1.1.1 Which ONE of the following parts controls the amount of light entering the eye by influencing the size of the pupil?
A Sclera
B Cornea
C Retina
D Iris
1.1.2 T... show full transcript
Worked Solution & Example Answer:1.1.1 Which ONE of the following parts controls the amount of light entering the eye by influencing the size of the pupil?
A Sclera
B Cornea
C Retina
D Iris
1.1.2 The function of the umbilical vein is to transport …
A carbon dioxide from the foetus to the mother - NSC Life Sciences - Question 1 - 2023 - Paper 1
Step 1
Which ONE of the following parts controls the amount of light entering the eye by influencing the size of the pupil?
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Answer
The part that controls the amount of light entering the eye is D Iris, as it regulates the size of the pupil.
Step 2
The function of the umbilical vein is to transport …
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Answer
The umbilical vein primarily transports D nutrients from the mother to the foetus.
Step 3
Which ONE of the following represents gland X and hormone Y?
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Answer
Gland X is A Pancreas and Hormone Y is Glucagon, which is responsible for increasing blood glucose levels.
Step 4
Which ONE of the following is CORRECT regarding the homeostatic control of the carbon dioxide concentration in the blood?
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Answer
The correct assertion involves various organs, including those controlling respiration in response to carbon dioxide levels.
Step 5
A reproductive strategy where the young receives nutrients through the placenta
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Answer
Vivipary.
Step 6
The duct that transports semen and urine to the outside of the body
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Answer
Urethra.
Step 7
The part of the nervous system that consists of cranial and spinal nerves
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Answer
Peripheral nervous system.
Step 8
The form in which excess glucose is stored in the liver
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Answer
Glycogen.
Step 9
The structure that serves as a micro-filter during pregnancy
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Answer
Placenta.
Step 10
The pigmented layer of the eye that absorbs excess light
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Answer
Choroid.
Step 11
The part of a neuron that plays a role in the speed at which a nerve impulse is transmitted
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Answer
Myelin sheath.
Step 12
The part of the male reproductive system which temporarily stores sperm until they mature
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