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Organic Chemistry in Human Biology

Organic Chemistry

A collection of factual questions regarding organic compounds and their roles in human physiological processes.

biochemistry health physiology

10 Questions Medium Ages 15+ Sep 25, 2026

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About this Study Set

This study set covers Organic Chemistry through 10 practice questions. A collection of factual questions regarding organic compounds and their roles in human physiological processes. Every question includes the correct answer so you can learn as you go — pick any format above to get started.

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1 Which functional group is primarily responsible for the polar nature of glucose, allowing it to dissolve in human blood plasma?

A Carboxyl group
B Hydroxyl group
C Methyl group
D Amino group

2 What is the primary organic building block of human hemoglobin, responsible for binding oxygen?

A Lipid
B Carbohydrate
C Protein
D Nucleic acid

3 Which essential fatty acid is classified as an omega-3 fatty acid crucial for human brain cell membrane fluidity?

A Stearic acid
B Alpha-linolenic acid
C Oleic acid
D Palmitic acid

4 In the human body, what is the chemical nature of the molecules that act as the primary long-term energy storage?

A Triglycerides
B Monosaccharides
C Amino acids
D Steroid hormones

5 Which nitrogenous base is found in RNA but is replaced by thymine in human DNA?

A Cytosine
B Adenine
C Uracil
D Guanine

6 What type of chemical bond links individual amino acids together to form the primary structure of human proteins?

A Hydrogen bond
B Peptide bond
C Ionic bond
D Glycosidic bond

7 Which steroid-derived molecule is a vital component of the human cell membrane and a precursor for vitamin D synthesis?

A Cholesterol
B Testosterone
C Cortisol
D Progesterone

8 What is the specific organic classification of enzymes like amylase that catalyze reactions in the human digestive system?

A Carbohydrates
B Proteins
C Lipids
D Nucleic acids

9 Which chemical structure is common to all standard amino acids found in human protein synthesis?

A A benzene ring
B An alpha-amino group and a carboxyl group
C A long hydrocarbon chain
D A phosphate group

10 Vitamin C (ascorbic acid) is essential for human health; what is its primary chemical property that allows it to act as an antioxidant?

A It is a saturated hydrocarbon
B It acts as a reducing agent
C It is a heavy metal catalyst
D It is an insoluble lipid

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