Question

60. Which of the following is not an example of secondary active transport of solutes in plants?
a) Cotransport
b) Symport
c) Antiport
d) Osmosis
61. Chlorosis of leaves due to sulfur deficiency usually begins first in
a) Unfolding leaves
b) Young leaves
c) Older leaves
d) None of the above
62. Cortical cells of host roobinfected by rhizobio are
a) Tetraploid
b) Diploid​

Answer 1

Answer:

60 (b)

61. (c)

62.(a)

your answer

Answer 2

Concept Introduction:-

A solute is said to be transported in the direction of its increasing electrochemical potential while a second solute—typically an ion—is assisted to diffuse in the direction of its lowering electrochemical potential.

Explanation:-

We have been provided a question

We need to choose from the given alternatives the correct option

The correct option is $60$ $b)$ Symport $61$ $c)$ Older leaves $62$ $a)$ Tetraploid

It is because Chlorosis is the main symptom of nitrogen deficiency. As a result, the leaves gradually become pale or yellow. These symptoms first appear in old leaves and later in young leaves.

Final Answer:-

The correct answer is option $b)$ Symport, $c)$ Older leaves, $a)$ Tetraploid.

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