Transportation of Food in Plants

Q.

Why can xylem transport water and minerals using dead cells whereas phloem requires living cells?

Q.

Name the following;

The tissue that transports food in plants

Q.

Differentiate between xylem and phloem w, r, t function and components.

Q.

Differentiate between xylem and phloem conducting tissues.

Q.

_____ is the plant tissue associated with translocation.

1. Meristem

2. Phloem

3. Xylem

4. Epidermis

Q. The movement of food in phloem is bidirectional.

1. True
2. False

Q. Translocation of sugars from sieve tubes is done along with water from xylem or adjacent cells. The reason for water to enter the sieve tubes is __________.

1. root pressure
2. osmosis
3. transpiration
4. diffusion

Q. During the process of transpiration excess water is lost from the surface of the leaf in the form of ______ .

1. water vapour
2. water
3. dew drops
4. ice

Q.

Differentiate between Xylem and phloem

Q. Assertion: Translocation of sucrose through phloem is a passive process.

Reason: Sucrose is pumped from leaves to sieve tubes at the expense of ATP.

1. Both assertion and reason are incorrect.
2. Assertion is incorrect and reason is correct.
3. Assertion is correct and reason is incorrect.
4. Both assertion and reason are correct.

Q. Which of the following component is specialised for translocation of food?

1. Sieve tube
2. Vessels
3. Fibres
4. Parenchyma

Q.

Phloem is the tissue in plants that help in organic translocation.

1. True

2. False

Q. Which of the following statements for vascular tissues are true?

1. Phloem is a conducting tissue.
2. Companion cells are present in xylem.
3. Phloem transport food.
4. Xylem fibres provide mechanical strength.

Q.

The process by which food substances are moved to different parts of the plant by the phloem tissues is known as

1. transpiration

2. respiration

3. translocation

4. photosynthesis

Q. Unidirectional movement of substances occurs through

1. None of these
2. xylem
3. xylem and phloem
4. phloem