Human Biology Fundamentals

Human Biology

A collection of medium-difficulty multiple-choice questions covering core concepts in human biology, emphasizing scientific facts and proven theories.

physiology anatomy genetics cellular biology

12 Questions Medium Ages 16+ Apr 4, 2026

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About this Study Set

This study set covers Human Biology through 12 practice questions. A collection of medium-difficulty multiple-choice questions covering core concepts in human biology, emphasizing scientific facts and proven theories. 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 hormone is primarily responsible for regulating blood glucose levels by promoting the uptake of glucose from the bloodstream into cells?

A Glucagon
B Cortisol
C Insulin
D Adrenaline

2 The process by which cells convert glucose into pyruvate in the absence of oxygen is known as:

A Oxidative phosphorylation
B Krebs cycle
C Glycolysis
D Fermentation

3 What is the primary function of red blood cells in the human body?

A Fighting infection
B Clotting blood
C Transporting oxygen
D Producing antibodies

4 Which part of the neuron is responsible for transmitting electrical signals away from the cell body?

A Dendrite
B Axon
C Synapse
D Cell body (soma)

5 The small, specialized structures within cells that perform specific functions are called:

A Organelles
B Chromosomes
C Genes
D Proteins

6 What is the main structural component of the cell membrane?

A Polysaccharides
B Phospholipids
C Nucleic acids
D Proteins

7 Which chamber of the heart pumps oxygenated blood to the rest of the body?

A Right atrium
B Right ventricle
C Left atrium
D Left ventricle

8 The process of DNA replication results in the production of:

A Four new DNA molecules
B Two identical DNA molecules
C One new DNA molecule
D Two different DNA molecules

9 Which of the following is a primary function of the kidneys?

A Producing bile
B Filtering waste products from the blood
C Storing bile
D Digesting carbohydrates

10 The genetic material of an organism is stored in:

A Ribosomes
B Mitochondria
C DNA
D Golgi apparatus

11 What is the role of villi in the small intestine?

A Secreting digestive enzymes
B Absorbing nutrients
C Storing bile
D Neutralizing stomach acid

12 The process by which genetic information is transferred from DNA to messenger RNA (mRNA) is called:

A Translation
B Replication
C Transcription
D Mutation

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