Biology Multiple Choice Questions and Answers for Different Competitive Exams

Multiple Choice Questions on Wood Anatomy

1. Major part of annual rings is formed by

a) spring wood
b) autumn wood
c) both a and b
d) none of these

2. Autumn wood is present at the ---of annual ring
a)beginning
b)middle
c)end
d)none of these

3. Heartwood is also known as 
a)duramen
b)sap wood
c)non porous wood
d)porous wood

4. Which region in heartwood is light in colour?
a)innermost region
b)middle region
c)outermost region
d)peripheral region

5. Tracheid percentage is 90-95% in 
a)soft wood
b)hardwood
c)sapwood
d)heartwood

6. Wood that entirely lacks vessel


a) non porous wood
b) homoxylous wood
c) early wood
d) hard wood

7. Which of the following monocot showing anaomalous secondary growth?
a) Rice
b) Maize
c)Dracena
d)none of the above

8. Which of the following is durable?
a) Heartwood
b) soft wood
c) sap wood
d)Spring wood

9. In an old stem the major part of wood is filled with tannins, resins, gums etc. This region is known are
a) sap wood
b) soft wood
c) Heartwood
d)Spring wood

10. The age of tree by counting the annual rings is  called
a)chronology
b)countology
c)dendrology
d)dendrochronology
Answers
1. a) spring wood
2. c)end
3. a)duramen
4. d)peripheral region
5. a)soft wood
6. a) non porous wood
7. c)Dracena
8. a) Heartwood
9. c) Heartwood
10.d)dendrochronology

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