Free Biological Molecules MCQs with Answers

• A. Solvent property
• B. Heat capacity
• C. Ionization
• D. Protection

Explanation: Water can absorb and retain heat, which helps stabilize the temperature in living organisms.

• A. Specific Heat Capacity
• B. Hydrogen Bonding
• C. Cohesion and Adhesion
• D. Hydrophobic exclusion

Explanation: If you place a few drops of oil on the surface of a water solution, the oil drops will tend to coalesce (to unite into one whole) into a…

• A. Heat of vaporization
• B. Hydrogen bonding
• C. High polarity
• D. Cohesion and adhesion

Explanation: Water is called the "universal solvent" because it dissolves more substances than any other liquid.

• A. Dipole nature
• B. High specific heat of vaporization
• C. High specific heat capacity
• D. Its liquid state

Explanation: Due to high specific heat capacity, water does not heat up easily and does not loose heat easily, as a result the temperature remains…

• A. i only
• B. ii only
• C. ii & iii
• D. i, iv & v
• E. i & v

Explanation: Explanation for this question will be added soon.

• A. Triose
• B. Tetrose
• C. Pentose
• D. Hexose
• E. Heptose

Explanation: Explanation for this question will be added soon.

• A. Sucrose
• B. Fructose
• C. Lactose
• D. Maltose
• E. Glycerose

Explanation: Explanation for this question will be added soon.

• A. It has a sweet taste
• B. It is found in fruits
• C. It rotates the plane of polarized light to left
• D. It exhibits mutarotation

Explanation: The explanation for this question will be added soon.

• A. C-H
• B. C-N
• C. C-O
• D. C-C

Explanation: Hydroxyl groups allow for the carbs to make glycosidic linkages which are the important bonds that allow for polymers.

• A. Proteins
• B. Carbohydrates
• C. Lipids
• D. Vitamins

Explanation: Carbohydrates (example cellulose, starch, glycogen, glucose, fructose etc) are the most abundant biomolecules on earth.

• A. Fructose
• B. Sucrose
• C. Lactose
• D. Maltose

Explanation: Option A: Fructose is not a disaccharide. Disaccharides are carbohydrates that are composed of two monosaccharides joined together by a…

• A. Monosaccharides
• B. Oligosaccharides
• C. Polysaccharides
• D. Carbohydrates

Explanation: Option A: Monosaccharides are the simplest form of carbohydrates and cannot be further hydrolyzed into smaller units.

• A. C
• B. H
• C. N
• D. O

Explanation: 'Carbohydrates' are primordial and essential compounds, crucial to the body.

• A. 3
• B. 5
• C. 6
• D. 2

Explanation: Ribofuranose is a type of sugar molecule that contains a furan ring structure.

• A. Protein
• B. Lipid
• C. Carbohydrate
• D. None of these

Explanation: The most common fuel of energy for cells is carbohydrate. Carbohydrates are broken down into glucose, which is then used to produce ATP…

• A. Maltose
• B. Sucrose
• C. Cellobiose
• D. Lactose

Explanation: Out of all the options only sucrose is non reducing as it does not have a free aldehyde or ketone group.

• A. glucose, galactose
• B. glucose, fructose
• C. two amino acids must form a peptide bond
• D. nitrogenous base with sugar molecule

Explanation: Lactose forms when two other sugars, glucose and galactose, join together.

• A. pentose sugars
• B. oligo sugars
• C. triose sugars
• D. manose sugars

Explanation: Glyceraldehyde (glyceral) is a triose monosaccharide with chemical formula C3H6O3. It is the simplest of all common aldoses.

• A. Brain
• B. Heart
• C. Blood
• D. Tissues

Explanation: Glycogen is a homopolysaccharide composed of a-glucose. It is a storage carbohydrate for animals.

• A. Phospholipid
• B. Polysacchrides
• C. Carbohydrates
• D. Both Options B and C are correct

Explanation: Option A : Human accumulated glycogen is not an example of phospholipids.