Transport in Plants — BIOLOGY STD 11 Science — Question

Statement $I$: A protein is imagined as a line, the left end represented by first amino acid (C-terminal) and the right end represented by last amino acid ( $N$-terminal).

Statement $II$: Adult human haemoglobin, consists of $4$ subunits (two subunits of $\alpha$ type and two subunits of $\beta$ type.)

In the light of the above statements, choose the correct answer from the options given below:

Statement $I$ : Low temperature preserves the enzyme in a temporarily inactive state whereas high temperature destroys enzymatic activity because proteins are denatured by heat.

Statement $II$ : When the inhibitor closely resembles the substrate in its molecular structure and inhibits the activity of the enzyme, it is known as competitive inhibitor.

In the light of the above statements, choose the correct answer from the options given below :

$(i)$ Transport and chemically modify the materials contained within it.

$(ii)$ Performs the function of packaging materials.

$(iii)$ Important site of formation of glycoproteins and glycolipids.

Which of the following is the correct answer?

Choose the correct answer from the options given below.