19.
Kreb’s cycle takes place in
Answer : B. mitochondrial matrix
20.
Which is formed during anaerobic respiration
Answer : C. Ethyl alcohol
21.
The xylem and phloem arranged side by side on same radius is called
Answer : C. conjoint
22.
The water potential of pure water is
Answer : D. 0
23.
Transpiration and root pressure cause water to rise in plants by
Answer : B. pulling and pushing it, respectively
24.
Movement of ions or molecules in a direction opposite to that of prevailing electro-chemical gradient is known as
Answer : A. Active transport
