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Bio chemistry for nurses

164 questions found

Practice Questions

A deficiency in Vitamin D can impair calcium absorption, leading to weakened bones. Vitamin D’s primary role in bone health is to:

A. Directly strengthen bones.

B. Stimulate osteoclast activity.

C. Promote calcium and phosphate absorption in the intestine. ✓

D. Promote protein synthesis.

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nmdcat.online Bio chemistry for nurses

Jun 6, 2026

A competitive inhibitor’s effect on an enzyme can typically be overcome by:

A. Increasing temperature.

B. Decreasing substrate concentration.

C. Increasing substrate concentration. ✓

D. Decreasing enzyme concentration.

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nmdcat.online Bio chemistry for nurses

Jun 6, 2026

The overall sequence of nucleotides in a DNA molecule constitutes its:

A. Tertiary structure

B. Secondary structure

C. Primary structure ✓

D. Quaternary structure

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nmdcat.online Bio chemistry for nurses

Jun 6, 2026

A protein’s secondary structure involves localized folding patterns like alpha-helices and beta-pleated sheets, which are primarily stabilized by:

A. Covalent bonds

B. Ionic bonds

C. Hydrogen bonds between backbone atoms ✓

D. Disulfide bonds

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nmdcat.online Bio chemistry for nurses

Jun 6, 2026

The metabolic pathway that breaks down glucose into two molecules of pyruvate, generating a small amount of ATP and NADH, is:

A. Krebs Cycle

B. Oxidative phosphorylation

C. Glycolysis ✓

D. Gluconeogenesis

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nmdcat.online Bio chemistry for nurses

Jun 6, 2026

The structure of DNA allows it to store and transmit genetic information. The information is encoded in the sequence of its:

A. Phosphate groups

B. Deoxyribose sugars

C. Nitrogenous bases ✓

D. Hydrogen bonds

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nmdcat.online Bio chemistry for nurses

Jun 6, 2026

A non-competitive inhibitor of an enzyme will typically:

A. Bind to the active site.

B. Decrease the Km? of the reaction.

C. Decrease the Vmax? of the reaction without affecting Km?. ✓

D. Increase the Vmax? of the reaction.

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nmdcat.online Bio chemistry for nurses

Jun 6, 2026

The complete breakdown of glucose in the presence of oxygen, yielding a large amount of ATP, is called:

A. Anaerobic respiration

B. Aerobic respiration ✓

C. Fermentation

D. Glycolysis

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nmdcat.online Bio chemistry for nurses

Jun 6, 2026

A patient has difficulty absorbing dietary fats. This could lead to a deficiency in which type of vitamins?

A. Water-soluble vitamins

B. Fat-soluble vitamins ✓

C. Mineral vitamins

D. Electrolyte vitamins

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nmdcat.online Bio chemistry for nurses

Jun 6, 2026

The type of bond that links nucleotides together to form a polynucleotide strand (DNA or RNA) is a:

A. Glycosidic bond

B. Ester bond

C. Peptide bond

D. Phosphodiester bond ✓

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nmdcat.online Bio chemistry for nurses

Jun 6, 2026

A protein that functions as an antibody, playing a key role in the immune system by binding to specific antigens, is an example of a protein’s:

A. Transport function

B. Structural function

C. Defensive function ✓

D. Catalytic function

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nmdcat.online Bio chemistry for nurses

Jun 6, 2026

The major metabolic organ responsible for maintaining blood glucose homeostasis by performing glycogenesis, glycogenolysis, and gluconeogenesis is the:

A. Muscle

B. Brain

C. Adipose tissue

D. Liver ✓

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nmdcat.online Bio chemistry for nurses

Jun 6, 2026

A patient with hyperlipidemia needs to understand the structure of lipoproteins. The outer layer of a lipoprotein, allowing it to be soluble in blood, is primarily composed of:

A. Triglycerides

B. Cholesterol

C. Phospholipids and apoproteins ✓

D. Fatty acids

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nmdcat.online Bio chemistry for nurses

Jun 6, 2026

The process of synthesizing RNA from a DNA template is called:

A. Replication

B. Translation

C. Transcription ✓

D. Reverse transcription

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nmdcat.online Bio chemistry for nurses

Jun 6, 2026

A deficiency in Vitamin B6 (Pyridoxine) can lead to neurological symptoms and skin problems. Vitamin B6 is important for:

A. Blood clotting

B. Amino acid metabolism ✓

C. Bone health

D. Vision

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nmdcat.online Bio chemistry for nurses

Jun 6, 2026

The energy released from catabolic reactions is captured and stored in the form of:

A. ADP

B. Glucose

C. ATP ✓

D. Amino acids

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nmdcat.online Bio chemistry for nurses

Jun 6, 2026

A cell swells and bursts when placed in a solution with a very low solute concentration. This phenomenon is caused by water moving into the cell via:

A. Active transport

B. Facilitated diffusion

C. Simple diffusion

D. Osmosis ✓

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nmdcat.online Bio chemistry for nurses

Jun 6, 2026

A patient with a chronic inflammatory condition may have elevated levels of certain signaling molecules derived from fatty acids. These molecules are:

A. Steroids

B. Triglycerides

C. Prostaglandins ✓

D. Phospholipids

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nmdcat.online Bio chemistry for nurses

Jun 6, 2026

The process of synthesizing fatty acids from acetyl-CoA is known as:

A. Beta-oxidation

B. Lipogenesis ✓

C. Lipolysis

D. Ketogenesis

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nmdcat.online Bio chemistry for nurses

Jun 6, 2026

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Bio chemistry for nurses

Practice Questions

A deficiency in Vitamin D can impair calcium absorption, leading to weakened bones. Vitamin D’s primary role in bone health is to:

A competitive inhibitor’s effect on an enzyme can typically be overcome by:

The overall sequence of nucleotides in a DNA molecule constitutes its:

A protein’s secondary structure involves localized folding patterns like alpha-helices and beta-pleated sheets, which are primarily stabilized by:

The metabolic pathway that breaks down glucose into two molecules of pyruvate, generating a small amount of ATP and NADH, is:

The structure of DNA allows it to store and transmit genetic information. The information is encoded in the sequence of its:

A non-competitive inhibitor of an enzyme will typically:

The complete breakdown of glucose in the presence of oxygen, yielding a large amount of ATP, is called:

A patient has difficulty absorbing dietary fats. This could lead to a deficiency in which type of vitamins?

The type of bond that links nucleotides together to form a polynucleotide strand (DNA or RNA) is a:

A protein that functions as an antibody, playing a key role in the immune system by binding to specific antigens, is an example of a protein’s:

The major metabolic organ responsible for maintaining blood glucose homeostasis by performing glycogenesis, glycogenolysis, and gluconeogenesis is the:

A patient with hyperlipidemia needs to understand the structure of lipoproteins. The outer layer of a lipoprotein, allowing it to be soluble in blood, is primarily composed of:

The process of synthesizing RNA from a DNA template is called:

A deficiency in Vitamin B6 (Pyridoxine) can lead to neurological symptoms and skin problems. Vitamin B6 is important for:

The energy released from catabolic reactions is captured and stored in the form of:

A cell swells and bursts when placed in a solution with a very low solute concentration. This phenomenon is caused by water moving into the cell via:

A patient with a chronic inflammatory condition may have elevated levels of certain signaling molecules derived from fatty acids. These molecules are:

The process of synthesizing fatty acids from acetyl-CoA is known as:

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