Biology · Chemistry

Biomolecules and Enzymes

1,432 Questions

This topic focuses on biomolecules, specifically proteins, enzymes, and amino acids. It includes questions on enzyme structures, protein folding, and catalysis. These concepts are crucial for medical and biology competitive exams.

Enzyme catalysisProtein structuresAmino acid synthesisPolypeptide chainsBiomolecule properties

Biomolecules and Enzymes Questions

Multiple choice
  1. Many proteins are the structural component of the cell membrane.

  2. Enzymes and hormones are basically proteins that maintain homeostasis.

  3. Proteins are energy rich compounds used as immediate energy source.

  4. Immunoglobulins are the proteins associated with the immune system.

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Carbohydrates are used as immediate energy source.

Multiple choice
  1. Virus

  2. Viroids

  3. Epsilon

  4. Preens

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Viroids are infectious agents composed solely of a short, circular, single-stranded RNA molecule, which is a low molecular weight nucleic acid. They lack the protein coat found in viruses.

Multiple choice
  1. Proteins

  2. Mucopeptide

  3. Mucilages

  4. Monosaccharides

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The bacterial cell wall is primarily composed of peptidoglycan, which is also known as mucopeptide or murein. This structure provides rigidity and protection to the cell.

Multiple choice
  1. H

  2. S

  3. O

  4. N

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Proteins are composed of amino acids, which always contain Carbon, Hydrogen, Oxygen, and Nitrogen. Sulfur is present in some amino acids (like cysteine) but not all proteins.

Multiple choice
  1. deamination

  2. excretion

  3. amination

  4. egestion

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

 Separation of amino acid into amino and carboxyl group is known as deamination.In the human body, deamination takes place primarily in the liver, however glutamate is also deaminated in the kidneys.