AS Biology Revision (Chapter 7-11)

AS Biology Revision (Chapter 7-11)

12th Grade

21 Qs

quiz-placeholder

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AS Biology Revision (Chapter 7-11)

AS Biology Revision (Chapter 7-11)

Assessment

Quiz

Biology

12th Grade

Medium

Created by

waiyee liew

Used 6+ times

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21 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

How does sucrose move from chloroplasts to the phloem?

 

1        mass flow

2        apoplast pathway

3        symplast pathway

all the above

1 and 2

1 and 3

2 and 3

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

What is the role of ATP in a companion cell when sucrose is loaded into a sieve tube element?

 

moving sucrose into the sieve tube element

removing protons out of the cytoplasm of the companion cell

removing protons from the sieve tube element.

taking up sucrose into the cytoplasm of the companion cell

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Different substances, such as sucrose and amino acids, can move in different directions in the phloem sieve tubes.

 

Which statement explains this?

Active transport occurs in some phloem sieve tubes and mass flow occurs in other phloem sieve tubes.

Both active transport and mass flow occur in each individual phloem sieve tube.

Mass flow occurs in both directions at the same time in each individual phloem sieve tube.

Mass flow occurs in different directions in different phloem sieve tubes at the same time.

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Which feature of xylem vessel elements helps adhesion during transpiration?

lignin forms an incomplete secondary wall

new vessels carry extra water as the plants grow

there are no cross walls between vessel elements

the vessel elements form a narrow tube

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Which type of tissue is present in the walls of all blood vessels?

elastic

endothelial

fibrous

smooth muscle

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Which feature enables the aorta to withstand high pressure at ventricular systole?

collagen fibres and elastin fibres

collagen fibres and semilunar valves

elastin fibres and large lumen

semilunar valves and smooth muscle

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Which statement correctly identifies a similarity between blood plasma and tissue fluid?

Protein is found in equal concentration in both blood plasma and tissue fluid.

The blood plasma is under the same pressure as the tissue fluid.

The water potential of the blood plasma and tissue fluid are equal.

White blood cells are found in both blood plasma and tissue fluid.

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