Biology Multiple Choice Questions and Answers for Different Competitive Exams

Multiple Choice Questions on Xylem and Phloem

1. Which of the following tissues are involved in water conduction ?
a) Xylem and Phloem
b) Tracheids and tracheae
c) Parenchyma and sclerenchyma
d) Xylem fibres and bast fibres
Xylem and phloem

2. Vessels are present in all plants except
a) Pinus
b) Rose
c) Gnetum
d) mango tree

3. Xylem consists of
a) tracheids, vessels, fibres and parenchyma
b) tracheids, vessels and companion cells
c) tracheids, fibres and parenchyma
d) tracheids, vessels, sieve cells and companion cells

4. Which of the following water conducting element is considered as most advanced
a) tracheids
b) multiple vessels
c) annular tracheids
d) simple vessels

5. Tracheids and vessels are present  in all except
a) Marselia
b) Equisetum
c) Gnetum
d) Cycas

6. Wood parenchyma is formed from
a) fusiform initials
b) ray initials
c) collenchyma cells
d) all of these

7. Phloem consists of
a) vessels, sieve tube cells, phloem parenchyma, phloem fibres
b) sieve tube cells, companion cells, phloem parenchyma, phloem fibres
c) vessels, tracheids, phloem parenchyma, phloem fibres
d) vessels, tracheids, sieve tube cells, companion cells

8. Which of the following statement is true about sieve tube cells
a) Sieve tube cells are nucleated but devoid of mitochondria and ER
b) companion cells are non-nucleated and are regulated by nucleated sieve cell
c) Sieve tube cells are present in all plants
d) companion cells are nucleated and regulates activity of non- nucleated sieve tube cell

9. Which of the following are the examples of phloem fibres
a) jute
b) hemp
c) flax
d) all of the above

10. All the following plant groups possess phloem parenchyma except
a) Dicots
b) Monocots
c) Gymnosperm
d) Pteridophytes
Learn more: MCQ on Stelar evolution of Pteridophytes
Answers:
1. b) Tracheids and tracheae
2. a) Pinus
3. a) tracheids, vessels, fibres and parenchyma
4. d) simple vessels
5. d) Cycas
6. a) fusiform initials
7. b) sieve tube cells, companion cells, phloem parenchyma, phloem fibres
8. d) companion cells are nucleated and regulates activity of non- nucleated sieve tube cell
9. d) all of the above
10. b) Monocots

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