Biomolecules Test

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Biomolecules Test - 23

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Question 1
1 / -0

Framework elements are

A
Non-metal minerals

B
Non-minerals

C
Mixed

D
Metals

Solution

Carbon, hydrogen, oxygen, nitrogen, phosphorus, potassium, calcium, magnesium and sulphur are essential macro-element. The non-mineral elements like carbon, hydrogen, and oxygen are known as framework elements as these are basic elements which provide the structural framework to cell and also forms an integral part of the storage products. Carbon, oxygen, and hydrogen is an important constituent of carbohydrates which is an instant source of energy. Cellulose which is an important constituent of the cell wall is made up of carbon, hydrogen, and oxygen. Glycogen is the storage product made up of carbon, hydrogen, and oxygen.
So, the correct answer is option B.
Question 2
1 / -0

An example of destructive metabolism (catabolism) is

A
Photosynthesis

B
Respiration

C
Glycogenesis

D
Both B and C

Solution

Destructive metabolism is the breakdown of more complex substances into simpler ones with release of energy.
And Respiration is concerned with the release of energy from the oxidation of complex organic compounds.
so technically respiration is a type of Catabolism.
While the other two are anabolic because in both the process substances are synthesised and used in the body.
Question 3
1 / -0

Which one of the following has phosphoric acid anhydride bonds?

A
Deoxy ribonucleic acid

B
Ribonucleic acid

C
dNTPs

D
Phospholipids

Solution

dNTPs are high energy molecules and are the building blocks of DNA. The pyrophosphate which is released during hydrolysis of dNTPs is acid anydride of phosphate. So, the correct option is C.
Question 4
1 / -0

Framework elements are

A
$$6$$

B
$$4$$

C
$$3$$

D
$$2$$

Solution

The elements like carbon, hydrogen, and oxygen are known as framework elements as these are basic elements which provide the structural framework to cell and also forms an integral part of the storage products. Oxygen is the most abundant element for the living organism. It is used for respiration. The oxygen inhaled supports the oxidation of food and releases energy. It plays an important role in the oxidative phosphorylation occurring in the mitochondria. The process produces energy in form of ATP. Carbon and hydrogen is an important constituent of carbohydrates which is an instant source of energy. Cellulose which is an important constituent of the cell wall is made up of carbon, hydrogen, and oxygen. Glycogen is the storage product made up of carbon, hydrogen, and oxygen.
So, the correct answer is option C.
Question 5
1 / -0

All organic substances possess

A
Carbon, Hydrogen and Oxygen

B
Carbon, Oxygen and Nitrogen

C
Carbon and Hydrogen

D
Carbon, Hydrogen, Oxygen and Nitrogen

Solution

The organic compound contain the element carbon. The carbon atoms are bonded to form a chain or ring which serves as a skeleton to organic molecule. The most of their carbon atoms are also bonded to one or more hydrogen atoms. The organic compounds are chiefly formed by living organisms. They have large molecules with complex structure and high molecular weights. They include carbohydrates, lipids, proteins, nucleotides and nucleic acids
So, the correct answer is 'Carbon and Hydrogen'
Question 6
1 / -0

Identify the anabolic process from the following.

A
Photosynthesis

B
Glycolysis

C
Hydrolysis of starch

D
Respiration
Solution
Anabolism is the category of metabolism in which bio-molecules are synthesized. Whereas catabolism is breaking down of bio-molecules into simpler forms, mostly for the release of energy.
During photosynthesis, carbohydrate is formed from carbon dioxide and water in presence of sunlight.
Glycolysis is catabolic process releasing ATP.
Hydrolysis of starch is the break down of starch into simpler monosaccharides using water.
Respiration is the oxidative process releasing ATP. It has both catabolic as well as anabolic reactions involved hence it is rather considered as an amphibolic process.
So, the correct option is 'Photosynthesis'.
Question 7
1 / -0

Which one has more free energy?

A
Reactants

B
Transition state of reactants

C
Products

D
Active site of enzyme

Solution

The transition state is the state of an activated complex which is highly unstable and readily changes into the product. Enzymes are proteins which accelerate the rate of the reaction. The substrate and product have different energy state. The energy gap between the substrate and the product is known as activation energy which is the minimum energy required to initiate a reaction. The enzymes lower the activation energy and lead to the formation of activated complex, which is also known as transition state and finally changes to the product.
So, the correct answer is option B.
Question 8
1 / -0

The most abundant element in living beings is

A
Oxygen

B
Nitrogen

C
Carbon

D
Hydrogen

Solution

Oxygen is the most abundant element for the living organism. It is used for respiration. The oxygen inhaled supports the oxidation of food and releases energy. It plays an important role in the oxidative phosphorylation occurring in the mitochondria. The process produces energy in form of ATP.
Nitrogen is an important component of the amino acids which is a monomer of protein.
Carbon and hydrogen is an important constituent of carbohydrates which is an instant source of energy.
So, the correct answer is option A.
Question 9
1 / -0

The enzymes catalysting breakdown without addition of water are called

A
Lyases

B
Hydrolases

C
Ligases

D
Oxidoreductases

Solution

Lyase is an enzyme by which the chemical bonds are broken down by the process other than hydrolysis and oxidation. It allows the formation of the new bond.
Hydrolase is the enzyme which catalyzes the splitting of compounds by addition of water.
Ligase is the enzyme which catalyzes the joining of two large molecules by formation of chemical bonds.
Oxidoreductase is the enzyme which catalyzes the oxidation and reduction reaction.
So, the correct answer is option A.
Question 10
1 / -0

Glycosidic linkage present between adjacent glucose units of starch or glycogen is generally

A
$$\beta 1 \longrightarrow 4$$

B
$$\alpha 1 \longrightarrow 4$$

C
$$\alpha 2 \longrightarrow 1$$

D
$$\beta 2 \longrightarrow 1$$

Solution

Glycosidic linkage present between adjacent glucose units of starch or glycogen is generally alpha 1-4 linkage. Alpha carbon of the first unit of glucose is linked to the 4 carbon of another unit of glucose of side chain.
Thus, the correct option is B.

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Biomolecules Test - 23

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Biomolecules Test - 23

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SHARING IS CARING

Question 1

Non-metal minerals

Non-minerals

Mixed

Metals

Solution

Question 2

Photosynthesis

Respiration

Glycogenesis

Both B and C

Solution

Question 3

Deoxy ribonucleic acid

Ribonucleic acid

dNTPs

Phospholipids

Solution

Question 4

$$6$$

$$4$$

$$3$$

$$2$$

Solution

Question 5

Carbon, Hydrogen and Oxygen

Carbon, Oxygen and Nitrogen

Carbon and Hydrogen

Carbon, Hydrogen, Oxygen and Nitrogen

Solution

Question 6

Photosynthesis

Glycolysis

Hydrolysis of starch

Respiration

Solution

Question 7

Reactants

Transition state of reactants

Products

Active site of enzyme

Solution

Question 8

Oxygen

Nitrogen

Carbon

Hydrogen

Solution

Question 9

Lyases

Hydrolases

Ligases

Oxidoreductases

Solution

Question 10

$$\beta 1 \longrightarrow 4$$

$$\alpha 1 \longrightarrow 4$$

$$\alpha 2 \longrightarrow 1$$

$$\beta 2 \longrightarrow 1$$

Solution

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