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Bio chemistry for nurses

164 questions found

Practice Questions

The process of glucose being synthesized from glycogen is known as:

A. Glycolysis

B. Glycogenolysis

C. Glycogenesis ✓

D. Gluconeogenesis

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nmdcat.online Bio chemistry for nurses

Jun 6, 2026

A specific type of protein that functions as an intracellular or extracellular signal, influencing the activity of target cells, is a(n):

A. Enzyme

B. Structural protein

C. Hormone ✓

D. Transport protein

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nmdcat.online Bio chemistry for nurses

Jun 6, 2026

A solution with a pH of 7.0 is considered:

A. Acidic

B. Neutral ✓

C. Basic (alkaline)

D. Highly acidic

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nmdcat.online Bio chemistry for nurses

Jun 6, 2026

A patient with a genetic defect in their ability to synthesize certain nucleotide bases may have impaired DNA replication and cell division. The primary building blocks of DNA are:

A. Amino acids

B. Monosaccharides

C. Nucleotides ✓

D. Fatty acids

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nmdcat.online Bio chemistry for nurses

Jun 6, 2026

The enzyme responsible for breaking down dietary proteins into smaller peptides and amino acids in the stomach is:

A. Amylase

B. Lipase

C. Pepsin ✓

D. Trypsin

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nmdcat.online Bio chemistry for nurses

Jun 6, 2026

The structural carbohydrate that provides rigidity to the cell walls of plants and is a component of dietary fiber is:

A. Starch

B. Glycogen

C. Cellulose ✓

D. Lactose

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nmdcat.online Bio chemistry for nurses

Jun 6, 2026

A molecule that acts as a reducing agent in biochemical reactions (donates electrons) is said to be:

A. Oxidized ✓

B. Reduced

C. Hydrolyzed

D. Phosphorylated

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nmdcat.online Bio chemistry for nurses

Jun 6, 2026

A patient with a genetic condition impacting the production of a particular enzyme involved in the synthesis of a non-essential amino acid may still be able to obtain it from their diet. This highlights the concept of:

A. Essential nutrients. ✓

B. Nutritional redundancy.

C. Dietary flexibility.

D. Metabolic adaptation.

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nmdcat.online Bio chemistry for nurses

Jun 6, 2026

The type of bond that connects glycerol to fatty acids in a triglyceride is an:

A. Peptide bond

B. Glycosidic bond

C. Ester bond ✓

D. Hydrogen bond

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nmdcat.online Bio chemistry for nurses

Jun 6, 2026

The minimum amount of energy required to initiate a chemical reaction is called the:

A. Free energy

B. Activation energy ✓

C. Binding energy

D. Kinetic energy

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nmdcat.online Bio chemistry for nurses

Jun 6, 2026

A patient presents with generalized edema due to low plasma protein levels. This illustrates the importance of proteins in maintaining:

A. Blood clotting.

B. Oxygen transport.

C. Osmotic pressure and fluid balance. ✓

D. Immune response.

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nmdcat.online Bio chemistry for nurses

Jun 6, 2026

A patient with a genetic defect in a mitochondrial enzyme cannot perform the Krebs Cycle efficiently. This would severely impair the cell’s ability to produce:

A. Glucose

B. Fatty acids

C. Large amounts of ATP aerobically ✓

D. Lactic acid

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nmdcat.online Bio chemistry for nurses

Jun 6, 2026

The process of joining two smaller molecules together to form a larger one, typically removing a water molecule, is called:

A. Hydrolysis

B. Condensation (dehydration synthesis) ✓

C. Oxidation

D. Reduction

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nmdcat.online Bio chemistry for nurses

Jun 6, 2026

A patient with a diet very low in carbohydrates may enter a state where the body produces ketone bodies from fatty acid breakdown to use as an alternative energy source. This process is called:

A. Glycolysis

B. Lipogenesis

C. Ketogenesis ✓

D. Gluconeogenesis

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nmdcat.online Bio chemistry for nurses

Jun 6, 2026

The enzyme that catalyzes the final step of the electron transport chain, transferring electrons to oxygen to form water, is:

A. ATP synthase

B. Cytochrome c oxidase ✓

C. NADH dehydrogenase

D. Succinate dehydrogenase

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nmdcat.online Bio chemistry for nurses

Jun 6, 2026

A protein that exists as a complex of multiple polypeptide chains (e.g., hemoglobin with four subunits) exhibits which level of protein structure?

A. Primary

B. Secondary

C. Tertiary

D. Quaternary ✓

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nmdcat.online Bio chemistry for nurses

Jun 6, 2026

A solution with a high concentration of hydrogen ions will have a:

A. High pH

B. Low pH ✓

C. Neutral pH

D. Variable pH

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nmdcat.online Bio chemistry for nurses

Jun 6, 2026

The nitrogenous base common to both DNA and RNA is:

A. Thymine

B. Uracil

C. Adenine

D. Guanine ✓

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nmdcat.online Bio chemistry for nurses

Jun 6, 2026

The primary function of the electron transport chain in cellular respiration is to:

A. Synthesize glucose.

B. Produce lactate.

C. Generate a proton gradient to drive ATP synthesis. ✓

D. Break down fatty acids.

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nmdcat.online Bio chemistry for nurses

Jun 6, 2026

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Bio chemistry for nurses

Practice Questions

The process of glucose being synthesized from glycogen is known as:

A specific type of protein that functions as an intracellular or extracellular signal, influencing the activity of target cells, is a(n):

A solution with a pH of 7.0 is considered:

A patient with a genetic defect in their ability to synthesize certain nucleotide bases may have impaired DNA replication and cell division. The primary building blocks of DNA are:

The enzyme responsible for breaking down dietary proteins into smaller peptides and amino acids in the stomach is:

The structural carbohydrate that provides rigidity to the cell walls of plants and is a component of dietary fiber is:

A molecule that acts as a reducing agent in biochemical reactions (donates electrons) is said to be:

A patient with a genetic condition impacting the production of a particular enzyme involved in the synthesis of a non-essential amino acid may still be able to obtain it from their diet. This highlights the concept of:

The type of bond that connects glycerol to fatty acids in a triglyceride is an:

The minimum amount of energy required to initiate a chemical reaction is called the:

A patient presents with generalized edema due to low plasma protein levels. This illustrates the importance of proteins in maintaining:

A patient with a genetic defect in a mitochondrial enzyme cannot perform the Krebs Cycle efficiently. This would severely impair the cell’s ability to produce:

The process of joining two smaller molecules together to form a larger one, typically removing a water molecule, is called:

A patient with a diet very low in carbohydrates may enter a state where the body produces ketone bodies from fatty acid breakdown to use as an alternative energy source. This process is called:

The enzyme that catalyzes the final step of the electron transport chain, transferring electrons to oxygen to form water, is:

A protein that exists as a complex of multiple polypeptide chains (e.g., hemoglobin with four subunits) exhibits which level of protein structure?

A solution with a high concentration of hydrogen ions will have a:

The nitrogenous base common to both DNA and RNA is:

The primary function of the electron transport chain in cellular respiration is to:

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