MCQs

11212 questions found

Practice Questions

A patient with extreme malnutrition shows signs of severe muscle wasting. This indicates a significant breakdown of which macronutrient to provide energy?

A. Carbohydrates

B. Lipids

C. Proteins ✓

D. Nucleic acids

Read More Details about this Mcq:

nmdcat.online Bio chemistry for nurses

Jun 6, 2026

The enzyme that catalyzes the breaking of a substrate by adding water is known as a(n):

A. Ligase

B. Isomerase

C. Hydrolase ✓

D. Transferase

Read More Details about this Mcq:

nmdcat.online Bio chemistry for nurses

Jun 6, 2026

A biochemist is studying a protein that functions as a channel across the cell membrane, allowing specific ions to pass through. This type of protein is primarily involved in:

A. Energy storage

B. Genetic information transfer

C. Transport ✓

D. Structural support

Read More Details about this Mcq:

nmdcat.online Bio chemistry for nurses

Jun 6, 2026

The backbone of a DNA strand is composed of alternating:

A. Amino acids and sugars

B. Phosphate groups and deoxyribose sugars ✓

C. Nitrogenous bases and phosphate groups

D. Fatty acids and glycerol

Read More Details about this Mcq:

nmdcat.online Bio chemistry for nurses

Jun 6, 2026

A patient with symptoms of rickets (in children) or osteomalacia (in adults) has impaired bone mineralization. This is primarily caused by a deficiency in:

A. Vitamin A

B. Vitamin B

C. Vitamin C

D. Vitamin D ✓

Read More Details about this Mcq:

nmdcat.online Bio chemistry for nurses

Jun 6, 2026

The metabolic pathway that uses glucose to produce NADPH and pentoses for nucleotide synthesis is the:

A. Glycolysis

B. Krebs Cycle

C. Pentose Phosphate Pathway ✓

D. Gluconeogenesis

Read More Details about this Mcq:

nmdcat.online Bio chemistry for nurses

Jun 6, 2026

A lipid that forms the core of very low-density lipoproteins (VLDL) and is stored in adipose tissue as an energy reserve is:

A. Cholesterol

B. Phospholipid

C. Triglyceride ✓

D. Fatty acid

Read More Details about this Mcq:

nmdcat.online Bio chemistry for nurses

Jun 6, 2026

A patient with chronic kidney disease may have difficulty regulating acid-base balance. The kidneys play a crucial role in maintaining pH by regulating the excretion of:

A. Carbon dioxide

B. Bicarbonate

C. Hydrogen ions and bicarbonate ✓

D. Oxygen

Read More Details about this Mcq:

nmdcat.online Bio chemistry for nurses

Jun 6, 2026

The most abundant protein in the human body, providing structural support to connective tissues like skin, bone, and cartilage, is:

A. Hemoglobin

B. Actin

C. Myosin

D. Collagen ✓

Read More Details about this Mcq:

nmdcat.online Bio chemistry for nurses

Jun 6, 2026

A mutation in the DNA sequence leads to a change in a single amino acid in the protein sequence. This type of mutation is called a:

A. Silent mutation

B. Missense mutation ✓

C. Nonsense mutation

D. Frameshift mutation

Read More Details about this Mcq:

nmdcat.online Bio chemistry for nurses

Jun 6, 2026

A carbohydrate that is a common monosaccharide and the primary source of energy for brain cells is:

A. Fructose

B. Galactose

C. Glucose ✓

D. Ribose

Read More Details about this Mcq:

nmdcat.online Bio chemistry for nurses

Jun 6, 2026

The transfer of electrons from one molecule to another in a chemical reaction is known as a(n):

A. Hydrolysis reaction

B. Condensation reaction

C. Redox reaction ✓

D. Isomerization reaction

Read More Details about this Mcq:

nmdcat.online Bio chemistry for nurses

Jun 6, 2026

A patient with prolonged jaundice has impaired fat absorption and develops bleeding tendencies. This is due to a deficiency in which fat-soluble vitamin crucial for blood clotting?

A. Vitamin A

B. Vitamin D

C. Vitamin E

D. Vitamin K ✓

Read More Details about this Mcq:

nmdcat.online Bio chemistry for nurses

Jun 6, 2026

A competitive inhibitor of an enzyme will typically affect the enzyme’s:

A. Vmax? but not Km?

B. Km? but not Vmax? ✓

C. Both Vmax? and Km?

D. Neither Vmax? nor Km?

Read More Details about this Mcq:

nmdcat.online Bio chemistry for nurses

Jun 6, 2026

A metabolic process that uses energy to synthesize complex molecules from simpler ones is called:

A. Catabolism

B. Anabolism ✓

C. Metabolism

D. Respiration

Read More Details about this Mcq:

nmdcat.online Bio chemistry for nurses

Jun 6, 2026

A patient with a genetic condition has an impaired ability to synthesize certain lipoproteins, leading to issues with lipid transport in the blood. Lipoproteins are complexes of:

A. Carbohydrates and proteins

B. Lipids and proteins ✓

C. Nucleic acids and lipids

D. Proteins and minerals

Read More Details about this Mcq:

nmdcat.online Bio chemistry for nurses

Jun 6, 2026

The measure of acidity or alkalinity of a solution, based on the concentration of hydrogen ions, is expressed as:

A. Concentration

B. Molarity

C. pH ✓

D. Solubility

Read More Details about this Mcq:

nmdcat.online Bio chemistry for nurses

Jun 6, 2026

A biochemist is studying the quaternary structure of a protein. This level of protein structure involves:

A. The sequence of amino acids.

B. The folding of a single polypeptide chain into an alpha-helix or beta-sheet.

C. The overall three-dimensional shape of a single polypeptide chain.

D. The arrangement of multiple polypeptide subunits into a functional complex. ✓

Read More Details about this Mcq:

nmdcat.online Bio chemistry for nurses

Jun 6, 2026

The primary function of carbohydrates in the human body is:

A. Structural support

B. Genetic information storage

C. Energy production ✓

D. Hormone synthesis

Read More Details about this Mcq:

nmdcat.online Bio chemistry for nurses

Jun 6, 2026

1 ... 288 289 290 291 292 ... 591

Page 290 of 591

Jump to:

MCQs

Practice Questions

A patient with extreme malnutrition shows signs of severe muscle wasting. This indicates a significant breakdown of which macronutrient to provide energy?

The enzyme that catalyzes the breaking of a substrate by adding water is known as a(n):

A biochemist is studying a protein that functions as a channel across the cell membrane, allowing specific ions to pass through. This type of protein is primarily involved in:

The backbone of a DNA strand is composed of alternating:

A patient with symptoms of rickets (in children) or osteomalacia (in adults) has impaired bone mineralization. This is primarily caused by a deficiency in:

The metabolic pathway that uses glucose to produce NADPH and pentoses for nucleotide synthesis is the:

A lipid that forms the core of very low-density lipoproteins (VLDL) and is stored in adipose tissue as an energy reserve is:

A patient with chronic kidney disease may have difficulty regulating acid-base balance. The kidneys play a crucial role in maintaining pH by regulating the excretion of:

The most abundant protein in the human body, providing structural support to connective tissues like skin, bone, and cartilage, is:

A mutation in the DNA sequence leads to a change in a single amino acid in the protein sequence. This type of mutation is called a:

A carbohydrate that is a common monosaccharide and the primary source of energy for brain cells is:

The transfer of electrons from one molecule to another in a chemical reaction is known as a(n):

A patient with prolonged jaundice has impaired fat absorption and develops bleeding tendencies. This is due to a deficiency in which fat-soluble vitamin crucial for blood clotting?

A competitive inhibitor of an enzyme will typically affect the enzyme’s:

A metabolic process that uses energy to synthesize complex molecules from simpler ones is called:

A patient with a genetic condition has an impaired ability to synthesize certain lipoproteins, leading to issues with lipid transport in the blood. Lipoproteins are complexes of:

The measure of acidity or alkalinity of a solution, based on the concentration of hydrogen ions, is expressed as:

A biochemist is studying the quaternary structure of a protein. This level of protein structure involves:

The primary function of carbohydrates in the human body is:

🏆 Top Contributors

Categories