Biological Structures and Functions Quiz

Explore cellular organelles, brain functions, hormones, and more. Challenge yourself with 15 questions on physiology.

#1

Which organelle is responsible for producing energy in a cell?

Nucleus
Mitochondria
Endoplasmic reticulum
Golgi apparatus
#2

What is the primary function of the ribosomes in a cell?

Protein synthesis
Energy production
Cell division
Waste elimination
#3

What is the role of the Golgi apparatus in a cell?

Energy production
Protein synthesis
Cellular respiration
Modifying and packaging proteins
#4

Which hormone is responsible for the fight-or-flight response in stressful situations?

Cortisol
Adrenaline
Insulin
Thyroxine
#5

What is the primary function of the lymphatic system in the human body?

Transporting oxygen
Filtering blood
Maintaining balance
Immune defense
#6

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

Carrying oxygen
Digesting food
Producing hormones
Fighting infections
#7

Which enzyme is responsible for breaking down carbohydrates in the digestive system?

Lipase
Amylase
Protease
Nuclease
#8

Which part of the human respiratory system is responsible for gas exchange?

Bronchi
Alveoli
Trachea
Lungs
#9

In which phase of the cell cycle does DNA replication occur?

G1 phase
S phase
G2 phase
M phase
#10

Which blood type is known as the universal donor?

A
B
AB
O
#11

What is the main function of the cerebellum in the brain?

Memory storage
Motor control and coordination
Emotional processing
Language comprehension
#12

Which hormone is responsible for regulating blood sugar levels?

Insulin
Estrogen
Testosterone
Thyroxine
#13

What is the function of the endoplasmic reticulum in a cell?

Synthesizing lipids
Modifying proteins
Storing glycogen
Producing ATP
#14

Which neurotransmitter is associated with pleasure and reward in the brain?

Dopamine
Serotonin
Acetylcholine
GABA
#15

Which part of the human brain is responsible for regulating body temperature and hunger?

Hippocampus
Thalamus
Hypothalamus
Cerebral cortex

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