Xylem

Q.

What are the different types of complex permanent tissues?

Q.

Name the tissue in plants that is involved in the transportation of food (Xylem/ Phloem).

__

Q.

Answer in one or two words:

Hibiscus belongs to which group?

Q.

The living tissue that provides support to the growing parts of the plant is :

1. Sclerenchyma

2. Collenchyma

3. Parenchyma

4. Fibres

Q.

Vessels and tracheids are composed of living cells.

1. True
2. False

Q.

What are tracheary elements?

Q.

The diagram shows the stem of a plant. A strip of the outer tissue including the phloem has been removed. What would happen to a plant without functional phloem?(Transportation of nutrients would be affected/ Transportation of water would be affected).

__

Q. What is lignin

Q. List out the differences between Xylem and Phloem.

Q. What is the difference between simple permanent tissue and complex permanent tissue? Discuss different types of tissues found in complex permanent tissue.

Q.

Name two conducting tissues in plants.

Q.

What is the general term for plants with vascular systems?

Q.

Are all trees gymnosperms?

Q.

What are the main water-conducting elements of the xylem in gymnosperms?v

Q.

Xylem transports _____ and ____ from soil.

Q.

Which of the following is a simple permanent tissue which is widely distributed throughout the plant body?

1. organ

2. organ system

3. organelle

4. body system

Q. Which among the following element of xylem is more efficient in transportation of water?

1. Tracheids
2. Vessels
3. Xylem fibres
4. Xylem parenchyma

Q.

What is hemp and hemp paper

Q.

Vascular tissues are pipe like vessels made of special cells to transport food and water in trees.

1. Vascular tissues
2. Vascular tissue

Q. Tracheary elements are

1. Vessels and tracheids
2. Sieve tubes, vessels and tracheids
3. Sieve tubes and vessels
4. Seive tubes, sieve cells, vessels and tracheids

Q.

The two kinds of elements present in xylem are:

1. Sieve tube and vessels

2. Guard cells and fibres

3. Sieve tube and companion cells

4. Tracheids and vessels

Q. What are the differences between the transport of material in xylem and phloem?

Q. In pteridophytes and gymnosperms the xylem tissue consists mainly of

1. Tracheae
2. Tracheids
3. Vessel members
4. Sclerenchyma

Q. Which one of the following statement pertaining to plant structure is correct :

1. Cork lacks stomata but lenticels carry out transpiration
2. Passage cells help in transfer of food from cortex to phloem
3. Sieve tube elements possess cytoplasm but no nuclei
4. The shoot apical meristem has a quiescent centre

Q.

About _____ percent of the raw material used to make paper comes from trees.

1. 40

2. 60

3. 80

4. 95

Q.

The type of vascular tissue that transports water and minerals in plants from roots to leaves is phloem.

1. True

2. False

Q. Match and find the correct option

	I		II
(a)	Tracheids	(i)	Cells possess highly thickened walls with oblilateral central lumen
(b)	Vessels	(ii)	Elongated tube like cells with thick lignified walls and tapering ends
(c)	Xylem parenchyma	(iii)	Individual members are interconnected through perforations in their common walls
(d)	Xylem fibres	(iv)	Cells are living with thin cellulose cell wall.

1. a-ii, b-iii, c-iv, d-i
2. a-iii, b-ii, c-iv, d-i
3. a-ii, b-iii, c-i, d-iv.
4. a-ii, b-iv, c-i, d-iii

Q. Vessels and companion cells are respectively present in the xylem and phloem of

1. Pteridophytes
2. Gymnosperms
3. Angiosperms
4. Bryophytes

Q. Companion cells are associated with :

1. Tracheids
2. Vessels
3. Sieve tubes of angiosperms
4. Sieve tubes of gymnosperms

Q. Lignin occurs in

1. Companion cells
2. Tracheids
3. Collenchyma
4. Sieve tube