Read the given statements and select the correct option.
i.Right end of a polysaccharide chain is called reducing end while left end is called non-reducing end.
ii.Starch can hold iodine molecules in its helical secondary structure but cellulose being non-helical, cannot hold iodine.
iii.Starch and glycogen are branched molecules.
iv.Starch and glycogen are the reserve food materials of plants and animals, respectively.

Statements (i) and (ii) are correct.

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Statements (ii) and (iii) are correct.

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Only statement (iv) is correct.

No worries! We‘ve got your back. Try BYJU‘S free classes today!

All statements are correct.

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Open in App

Solution

The correct option is D All statements are correct.
The right end of the polysaccharide chain which has a free reactive end and is known as reducing and left side is the non-reducing end.
Starch is a polymer of glucose that is made up of two types of chains amylose and amylopectin.
Amylose is a straight polymer with 1-4 glycosidic linkages and amylopectin is a branched polymer with 1-6 glycosidic linkage.
Starch can hold iodine molecule in the amylopectin helical structure. Starch is the reserve food material in plants. Glycogen is also a storage food material in animals. It is also branched structure, a polymer of glucose which has linear 1-4 glycosidic bonds and branched 1-6 glycosidic linkage.
Cellulose is a linear polymer of Beta D glucose which does not trap iodine molecules.
So, the correct option is 'All statements are correct.'

Suggest Corrections

Similar questions

Q. Read the following statements:
i) Chitin, starch, glycogen and agar-agar are homopolymers ii) In a glycogen, the left end is called the non-reducing end
iii) Starch forms helical secondary structures but cellulose does not contain complex helices.
iv) Cellulose Can easily hold iodine.
v) Chitin is a storage polysaccharide How many of the above statements are correct?

Study the given statements and select the correct answer.
(i)Cellulose is a homopolymer of glucose.
(ii)Inulin is a homopolymer of fructose.
(iii)Starch gives blue colour and glycogen gives red colour with iodine solution.

(iv)Cellulose gives no colour with iodine solution.

Q. How many of the given statements are correct?
A. Water is the most abundant chemical in the living organisms.
B. A protein is a heteropolymer and not a homopolymer.
C. In polysaccharide,left end is called reducing end & right end is called non-reducing end.
D. A nucleoside is the building block of nucleic acids, which consist of a heterocyclic compound, a monosaccharide and a phosphate.

Q. Consider the following statements regarding the
major pigments and stored food in the different
groups of algae and choose the correct option

(i) In chlorophyceae, the stored food material is starch and the major pigments are chlorophyll a and d.

(ii) In phaeophyceae, laminarin is the stored food and major pigments are chlorophyll a and b.

(iii) In rhodophyceae, floridean starch is the stored food and the major pigments are chlorophyll a, d and phycoerythrin

Question 3
Which of the following statements is/are correct?
(i) All green plants can prepare their own food.
(ii) Most animals are autotrophs.
(iii) Carbon dioxide is not required for photosynthesis.
(iv) Oxygen is liberated during photosynthesis.

Choose the correct answer from the options below:

(a) (i) and (iv)
(b) (ii) only
(c) (ii) and (iii)
(d)(i) and (ii)

Join BYJU'S Learning Program