(a) Figure 3 shows two light receptor cells from the human eye - Edexcel - GCSE Biology - Question 4 - 2022 - Paper 1
Question 4
(a) Figure 3 shows two light receptor cells from the human eye.
(i) Which part of the eye contains light receptor cells?
A cornea
B iris
C lens
D retina
(ii) ... show full transcript
Worked Solution & Example Answer:(a) Figure 3 shows two light receptor cells from the human eye - Edexcel - GCSE Biology - Question 4 - 2022 - Paper 1
Step 1
Which part of the eye contains light receptor cells?
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Answer
The correct answer is D: retina. The retina is the part of the eye that contains light receptor cells, specifically rods and cones, which are crucial for vision.
Step 2
Name the organelles labelled X.
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Answer
The organelles labelled X are mitochondria. Mitochondria are responsible for producing energy through respiration.
Step 3
Name the organelle labelled Y.
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Answer
The organelle labelled Y is the nucleus. The nucleus contains chromosomes, which house the genetic material.
Step 4
Name cell A.
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Answer
Cell A is referred to as rod cells. Rod cells are photoreceptors in the retina that are sensitive to low light levels, making them essential for night vision.
