Biology - Online Test
Q1. Reproduction is an essential life process, which help in
Answer : Option D
Explaination / Solution:
During reproduction, new individuals are produced having similar traits that help in continuity of species. It is essential as all living organisms have fixed life span.
Q2.
Consider
the following statements
In
spring season vascular cambium
i.
is less active
ii.
produces a large number of xylary elements
Answer : Option B
Explaination / Solution:
No Explaination.
Q3. The balloon – shaped structures called tyloses
Answer : Option C
Explaination / Solution:
No Explaination.
Q4. Monstera has
Answer : Option B
Explaination / Solution:
In some plants, like grass,Monsteraand the banyan tree, roots arisefrom parts of the plant other than theradicle and are called adventitious roots
Q5. In a fully turgid cell
Answer : Option B
Explaination / Solution:
No Explaination.
Q6. Main function of uriniferous tubules
Answer : Option A
Explaination / Solution:
No Explaination.
Q7. Plants show mitotic divisions in -------------
Answer : Option C
Explaination / Solution:
The plants can show mitotic divisions in both haploid and diploid cells due to alternation of generations in life cycle.
Q8.
Identify
correct match.
1.
Die back disease of citrus - (i) Mo
2.
Whip tail disease - (ii) Zn
3.
Brown heart of turnip - (iii) Cu
4.
Little leaf - (iv) B
Answer : Option B
Explaination / Solution:
No Explaination.
Q9.
Assertion (A):
Increase in Proton gradient inside lumen responsible for ATP synthesis
Reason (R):
Oxygen evolving complex of PS I located on thylakoid membrane facing Stroma,
releases H+ ions
Answer : Option B
Explaination / Solution:
No Explaination.
Q10. The number of ATP molecules formed by complete oxidation of one molecule of pyruvic acid is
Answer : Option D
Explaination / Solution:
No Explaination.
