Plant Growth And Development Question 75
Question: Exponential growth cannot be sustained for much time due to :
(i) limited space and nutrient. (ii) Accumulation of toxic agent. (iii) Unlimited space and nutrient. (iv) Accumulation of nutrient agent.
Options:
A) (i) and (iii)
B) (iii) and (iv)
C) (i) and (ii)
D) (iv) and (ii)
Show Answer
Answer:
Correct Answer: C
Solution:
[c] Exponential or log phase cannot sustain for longer period because the nutrients and space are limited and there is competition as well.
Microorganisms, when nutrients get exhausted, secrete toxic chemicals which inhibit the growth of other organisms.
BETA
