Translocation

Q.

What is translocation in phloem?

Q.

Loading of sucrose into sieve tube cells is by (i)_______ and the unloading of sucrose from the sieve tube cells is by (ii)________.

1. (i) active transport (ii) passive transport

2. (i) passive transport (ii) active transport

3. (i) active transport and (ii) active transport

4. (i) passive transport and (ii) passive transport

Q.

Why is phloem transport considered an active process?

Q.

The phloem tissue in plants is responsible for the transport of :
(a) water
(b) water and minerals
(c) sugar
(d) all of the above

Q.

What is Munch's hypothesis?

Q.

Given below is a schematic diagram to illustrate some aspects of photosynthesis.

(a) Fill up the gaps, in blank spaces (1-4), by writing the names of the correct items.

(b) What phenomenon do thick arrows A and B indicate respectively ?

Q.

1.Name the tissue which transports soluble products of photosynthesis in a plant.

Q.

(a) What is transpiration ?
(b) What do you mean by 'translocation' with respect to transport in plants ?
(c) Which plant tissue is involved in translocation : xylem or phloem ?

Q.

In which biochemical form does the photosynthate move in phloem tissue?

Q.

Ascent of sap in plants takes place through :

1. Cortex

2. Epidermis

3. Xylem

4. Phloem

Q.

The tissue that is involved with the transport of food in plants is__.

Q.

Tissue that transports food in plants ______.

Q.

What makes sucrose move in the phloem tissue after being pumped from leaves?

1. Transpiration pull

2. Osmotic pressure

3. Diffusion

4. Photosynthesis rate

Q. The given diagram represents an experiment to demonstrate a certain phenomenon in a green plant. [5 MARKS]
(a) Has the level of mercury in the glass tube risen or fallen?


(b) Name the life process of the plant which has caused the change in the level of mercury.
(c) Define the process named above.
(d) State any 3 advantages of this process to the plant.
(e) Which conducting tissue of the plant does the glass-tubing represent - xylem or phloem?

Q. Phloem tissue helps in transfer of food to different parts of plant and Xylem tissue helps in transfer of water and minerals to different parts of the plant.

1. True
2. False

Q.

The upward movement of sap through xylem is called _________________.

Q.

The materials transported during organic translocation by phloem is/are ___ .

1. All of the above

2. Proteins

3. Sucrose

4. Hormones

Q.

Which of the following is/are vascular tissues?

1. Phloem

2. Xylem

3. Meristem

4. Stomata

Q.

Which of the following plant organs act as storage places for different minerals?

1. Apical and lateral meristems

2. Young leaves and storage organs

3. Developing flowers, fruit and seeds

4. Old leaves

Q.

Raisins absorb water by___________.

1. Osmosis

2. Simple diffusion

3. Imbibition

4. Active absorption

Q.

About sandbox tree

Q.

Phloem is the tissue in plants that help in organic translocation. True or False?

1. Xylem

2. Epidermis

Q.

Translocation takes place utilizing energy in the form of ___.

Q.

Identify the correct set of statements related to the movement of substances through vascular tissues.

I. Xylem mainly transports water, minerals salts and also organic solutes.

II. Phloem mainly translocates a variety of organic solutes and also inorganic solutes.

III. Xylem transports substances from roots to aerial parts of the plants.

IV. Phloem transports substances bidirectionally.

1. I & III only

2. II & IV only

3. I & II only

4. I, II, III & IV

Q.

Water moves into sieve tubes from xylem due to ………………

1. energy difference.

2. difference in the solute concentration.

3. pressure.

4. none of the above

Q.

State the term used for the transport of food from leaves to other parts of plant.

Q.

Give reason :

The process of active transport consumes energy in the form of ATP.

Q.

Which tissue in plants help in organic translocation?

1. Epidermis

2. Meristamatic tissue

3. Phloem

4. Xylem

Q. is the plant tissue that helps in the transport of water from the roots to the shoot.

1. Phloem
2. Meristem
3. Xylem
4. Epidermis

Q.

Explain the cells responsible for conduction of food to various parts of the plant.