Botany MCQ Quiz Hub

1. Which type of wood helps in formation of Major part of annual rings?
spring wood
autumn wood
Both A and B
None

2. Autumn wood is present at
end of annual rings
beginning of annual rings
middle of annual rings
None

3. Heartwood is also called as
Sap wood
Duramen
Porous wood
Non porous wood

4. Which of the following region in heartwood is light in colour?
Peripheral region
Middle region
Outer region
Inner region

5. Tracheid percentage is 90-95% in
Sap wood
Soft wood
Hard wood
None

6. Which of the following wood is entirely lacks vessel
Non porous wood
Porous wood
Soft wood
Hard wood

7. Monocot that showing anaomalous secondary growth?
Rice
Dracena
Maize
None

8. Durable is
spring wood
sap wood
heart wood
None

9. In an old stem the major part of wood is filled with tannins, resins, gums etc. This region is known are
Sap wood
Soft wood
Heart wood
All

10. The age of tree by counting the annual rings is called
Chronology
Countology
Dendrology
Dendrochronology

11. Vessels are present in all plants except
Gnetum
Pinus
Rose
Mango tree

12. Xylem consists of
tracheids, vessels and companion cells
tracheids, vessels, fibres and parenchyma
tracheids, fibres and parenchyma
None

13. Which of the following water conducting element is considered as most advanced
multiple vessels
annular tracheids
tracheids
none

14. Tracheids and vessels are present in all except
Equisetum
Marselia
Gnetum
Cycas

15. Wood parenchyma is formed from
fusiform initials
collenchyma cells
ray initials
Nonw

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

17. Which of the following are the examples of phloem fibres
flax
jute
hemp
all

18. All the following plant groups possess phloem parenchyma except
Monocots
Dicots
Gymnosperm
All

19. Phloem consists of
vessels, sieve tube cells, phloem parenchyma, phloem fibres
sieve tube cells, companion cells, phloem parenchyma, phloem fibres
vessels, tracheids, phloem parenchyma, phloem fibres
vessels, tracheids, sieve tube cells, companion cells

20. Which of the following tissues are involved in water conduction ?
Tracheids and tracheae
Xylem and Phloem
Parenchyma and sclerenchyma
Xylem fibres and bast fibres