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Biology etea medical mcqs
Chemistry
Physics
BS Nursing
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Biology etea medical mcqs
Chemistry
Physics
BS Nursing

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MDCAT ENGLISH MCQs
Biology etea medical mcqs
Chemistry
Physics
BS Nursing

Category: Bio chemistry for nurses

A patient with excessive bleeding has impaired platelet function. A certain lipid, a prostaglandin, plays a role in platelet aggregation and inflammation. This lipid is derived from:

Cholesterol
Fatty acids
Glycerol
Amino acids

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Bio chemistry for nurses

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

Beta-oxidation
Lipogenesis
Lipolysis
Ketogenesis

ETEA MCQS.COM
Bio chemistry for nurses

The most abundant organic molecule in cells, crucial for structural support, catalysis, transport, and regulation, is:

Carbohydrates
Lipids
Proteins
Nucleic acids

ETEA MCQS.COM
Bio chemistry for nurses

A solution with a pH of 8.0 is considered:

Acidic
Neutral
Basic (alkaline)
Strongly acidic

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Bio chemistry for nurses

The nitrogenous base found in RNA but not in DNA is:

Adenine
Guanine
Cytosine
Uracil

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Bio chemistry for nurses

A patient with impaired fatty acid oxidation due to a genetic defect may have difficulty generating ATP from fats, leading to muscle weakness and fatigue, especially during fasting. This pathway is called:

Glycolysis
Beta-oxidation
Lipogenesis
Ketogenesis

ETEA MCQS.COM
Bio chemistry for nurses

A common polysaccharide found in plants that serves as the primary energy storage molecule for plants and is a major source of dietary carbohydrates for humans is:

Glycogen
Cellulose
Starch
Chitin

ETEA MCQS.COM
Bio chemistry for nurses

The Km value of an enzyme is a measure of its:

Maximum velocity
Catalytic efficiency
Affinity for its substrate
Stability at different temperatures

ETEA MCQS.COM
Bio chemistry for nurses

A patient with liver cirrhosis has impaired ability to synthesize albumin. Albumin is a major plasma protein primarily responsible for maintaining:

Blood clotting
Oxygen transport
Osmotic pressure and fluid balance
Immune response

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Bio chemistry for nurses

The molecule that links the major catabolic pathways (like glycolysis, beta-oxidation) to the Krebs Cycle is:

Pyruvate
Lactate
Acetyl-CoA
Glucose

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Bio chemistry for nurses

The process of glucose being broken down to pyruvate in the presence of oxygen, leading to further oxidation in the mitochondria, is the first step of:

Anaerobic respiration
Aerobic respiration
Fermentation
Gluconeogenesis

ETEA MCQS.COM
Bio chemistry for nurses

A molecular biologist is examining the components of a ribosome. They identify a type of RNA that is a major structural and catalytic component of ribosomes, playing a crucial role in protein synthesis. This is:

mRNA
tRNA
rRNA
siRNA

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Bio chemistry for nurses

A specific type of protein that functions by binding to specific molecules (ligands) to trigger a cellular response is a:

Enzyme
Structural protein
Receptor
Transport protein

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Bio chemistry for nurses

A patient has a genetic condition affecting the synthesis of a vitamin, leading to symptoms of megaloblastic anemia. This condition often results from a deficiency in:

Vitamin C
Folic Acid
Vitamin A
Vitamin D

ETEA MCQS.COM
Bio chemistry for nurses

The overall process of all chemical reactions occurring in an organism, involving both anabolic and catabolic pathways, is known as:

Homeostasis
Metabolism
Respiration
Digestion

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Bio chemistry for nurses

A patient with symptoms of scurvy (bleeding gums, poor wound healing) is deficient in Vitamin C. Vitamin C is essential for the synthesis of:

Hemoglobin
Collagen
DNA
Glycogen

ETEA MCQS.COM
Bio chemistry for nurses

A lipid that is synthesized in the smooth endoplasmic reticulum and serves as the primary form of energy storage in adipose tissue is:

Phospholipid
Cholesterol
Triglyceride
Fatty acid

ETEA MCQS.COM
Bio chemistry for nurses

The process of breaking down large protein molecules into smaller peptides and then into individual amino acids is called:

Glycolysis
Lipolysis
Proteolysis
Nucleolysis

ETEA MCQS.COM
Bio chemistry for nurses

A carbohydrate that serves as a structural component of plant cell walls and is largely indigestible by human enzymes is:

Starch
Glycogen
Cellulose
Sucrose

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Bio chemistry for nurses

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