Vascular Tissue System

Q.

What are the differences between the transport of materials in xylem and phloem?

Q. Which plants are known as vascular cryptogams?

1. Red algae
2. Liverworts
3. Mosses
4. Pteridophytes

Q.

Is the phloem dead?

Q.

Which cell does not have perforated cell wall ?

1. Tracheids

2. Companion cells

3. Sieve tubes

4. Vessels

Q.

Sieve tubes and companion cells are components of_______.

Q.

Megakaryocytes give rise to

1. Erythrocytes

2. Granulocytes

3. Agranulocytes

4. Thrombocytes

Q.

In gymnosperms sieve cells are associated with

1. Albuminous cells

2. Companion cells

3. Guard cells

4. Sieve plates

Q.

Formation of red blood cells from bone marrow is called

1. Hematogenesis

2. Haemolysis

3. Erythroblastosis

4. Haemopoiesis

Q. Choose the odd one out.

1. Cortex, pericycle, pith
2. Trichomes, stomata, cuticle
3. Root hair, guard cells, subsidiary cells
4. Sieve tubes, vessel elements, root hairs

Q. Vascular bundles (vascular tissues) are absent in:

1. Gymnosperms
2. Angiosperms
3. Pteridophytes
4. None of these

Q.

What is meant by pericycle?

Q.

Differentiate amphivasal and amphicribal

Q.

What are the functions of xylem parenchyma?

Q.

The site of production of new RBCs in the case of adult human being is

1. Kidneys

2. Liver

3. Skeleton

4. Spleen

Q. What is a permanent tissue? Describe the different types of simple permanent tissue.

Q.

Xylem and phloem are examples of

1. Epidermal tissue

2. Complex tissue

3. Protective tissue

4. Simple tissue

Q.

What are the characteristics differences found in the vascular tissue of gymnosperms and angiosperms?

Q. Haemoglobin has 4 subunits while myoglobin has only 1 subunit. Then each will show which among the following conformations respectively?

1. 1 ̊, 2 ̊, 3 ̊, 4 ̊ and 1 ̊, 2
2. $1^{\circ }$, $2^{\circ }$, $3^{\circ }$, $4^{\circ }$ and $1^{\circ }$, $2^{\circ }$, $3^{\circ }$
3. $1^{\circ }$, $2^{\circ }$, $3^{\circ }$ and $1^{\circ }$, $2^{\circ }$, $3^{\circ }$, $4^{\circ }$
4. $1^{\circ },2^{\circ },3^{\circ }$ and $1^{\circ },2^{\circ }$

Q. Describe the different types of vascular bundles.

Q. Pressure flow hypothesis explains

1. translocation of minerals
2. All the above
3. translocation of sugars from source to sink
4. upward movement of water through xylem

Q.

Early formed xylem is -

1. Metaxylem

2. Uniseriate

3. Multiseriate

4. Protoxylem

Q. The translocation of organic solutes in sieve tube members is supported by

1. root pressure and transpiration pull
2. cytoplasmic streaming
3. P proteins
4. mass-flow involving carrier and ATP

Q.

Long tube like cells which are the main cells of phloem are ____.

Q.

What is xylem parenchyma?

Q. Tyloses are.

1. Tracheal plugs which plug the lumen of the vessels and tracheids
2. Compound sieve plates
3. Laticiferous channels
4. Specialised secretory cells

Q. Give the characteristics and role of the following:
(b) Suberin

Q. What is complex tissue present in xylem and phloem? Write its function.

Q.

Phloem transports food in all directions.

1. True
2. False

Q.

Tyloses are

1. Tracheal plugs which plug the lumen of the vessels and tracheids

2. Compound sieve plates

3. Specialised secretory cells

4. Lacticiferous channels

Q.

Which is the phloem element that is supportive in function?