Which of these are not true about the casparian strip?

It forces water to leave the symplast pathway and join the apoplast pathway

Which of these is not a feature of the xylem?

It has sieve plates between the cells

What is the apoplast pathway?

When water passes through spaces in the cell walls and between the cells

Where is the pericycle located?

Just inside the endodermis in a root

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3.3 Plant transport - OCR A Level

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A mix of questions relating to the plant transport topic in OCR A Level Biology covering the whole of 3.3 (in Pearson OCR AS Biology textbook)

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Questions 21

Answers

1
Which of these are not true about the casparian strip?
It is located in the endodermis in roots
It forces water to leave the symplast pathway and join the apoplast pathway
It is hydrophobic and made of suberin (and sometimes lignin)
It prevents the flow of water through the cell wall
2
What is reached at the endodermis, stopping the apoplast pathway?
Casparian strip
Sieve plates
Selectively permeable membranes
Toxic salutes
3
What is this?
Stem
Root
Shoot
Leaf
4
The junctions between xylem cells are called plasmodesmata
True
False
5
What is B?
medulla
phloem
xylem
eipdermis
6
Water moves from areas of lower water potential to areas of higher water potential
True
False
7
The packing tissue that is living and found throughout a plant and carries out all functions for the plant is...
Pericycle
Sclerenchyma
Parenchyma
Collenchyma
8
What is this?
Vascular bundle in a stem
Dicot root
Dicot stem
9
Which of these is not a feature of the xylem?
It has sieve plates between the cells
It contains lignin spirals in the walls
It does not have companion cells
It allows one way flow up the plant
10
When water is forced to enter the symplast pathway, mineral ions can follow by diffusion and enter the medulla.
True
False
11
What is B?
Epidermis
Cortex
Endodermis
Medulla
12
The junctions between plant cells that enable free movement are called plasmodesmata
True
False
13
Which of these do not help movement of water up the stem?
Condensation
Capillary action - adhesion
Root pressure
Transpiration pull - cohesion
14
What is the apoplast pathway?
When water can pass through the cytoplasm and the vacuole
When water passes through spaces in the cell walls and between the cells
When water enters the cell cytoplasm through the plasma membrane
When water moves up a plant
15
What is A?
Endodermis
Medulla
Cortex
Epidermis
16
What is this?
Dicot leaf
Dicot root
Vascular bundle
Dicot stem
17
What does phloem transport
Sucrose
photosynthesis
energy
water and minerals
18
Where is the pericycle located?
Just inside the endodermis in a root
Just inside the endodermis in a shoot
Just under the epidermis in a root
Just inside the epidermis in a shoot
19
Sclerenchyma is a support tissue that is dead at maturity and provides structural support
False
True
20
What are the key features of phloem vessels?
Living and lignified
Living with sieve plates
Dead and lignified
Dead with sieve plates
21
What structure is the '?'
Cambium
Medulla
Cortex
Midrib

3.3 Plant transport - OCR A Level Flashcards | StudBud