1
1 mark
1 markThe diagram below shows a section through a leaf.
Which cell type would have the highest concentration of oxygen on a bright, sunny day?
Did this page help you?
Leaf Structure (Cambridge (CIE) O Level Biology): Exam Questions
49 mins7 questions
11 mark
1 markThe average number of chloroplasts found in four different types of cell from the leaf of a plant are shown in the bar chart below.
What are the names of the four types of cell?
| 1 | 2 | 3 | 4 |
A | spongy mesophyll cell | epidermal cell | palisade mesophyll cell | guard cell |
B | palisade mesophyll cell | guard cell | spongy mesophyll cell | epidermal cell |
C | epidermal cell | spongy mesophyll cell | palisade mesophyll cell | guard cell |
D | palisade mesophyll cell | spongy mesophyll cell | guard cell | epidermal cell |
Did this page help you?
21 mark
What describes the upper cuticle of a leaf?
a permeable layer allowing water to enter the leaf
a single layer of cells containing many chloroplasts
a single layer of transparent cells allowing light to enter the leaf
a thin non-cellular layer preventing water loss from the leaf
Did this page help you?
11 mark
1 markThe diagram below shows a cross-section through a leaf as seen under a microscope.
In which part of the leaf would the concentration of carbon dioxide be lowest on a warm, sunny day?
Did this page help you?