Answers | Latest Version | 2024/2025 |
Correct & Verified
Which organ stores and concentrates bile?
A. Liver
✔✔B. Gallbladder
C. Pancreas
D. Small intestine
How do enzymes speed up chemical reactions?
✔✔A. By lowering activation energy
B. By increasing temperature
C. By providing oxygen
D. By absorbing water
Which part of the nervous system controls involuntary actions like breathing and heartbeat?
A. Somatic nervous system
B. Cerebral cortex
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,✔✔C. Autonomic nervous system
D. Spinal cord
What is the main function of platelets in the blood?
✔✔A. Clotting to prevent excessive bleeding
B. Carrying oxygen
C. Producing antibodies
D. Transporting nutrients
Which organ is responsible for producing red blood cells?
A. Liver
B. Heart
✔✔C. Bone marrow
D. Lungs
What is the purpose of the synovial fluid in joints?
A. Strengthening bones
B. Connecting muscles to bones
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,✔✔C. Lubricating and reducing friction
D. Absorbing shock
What is the primary function of the respiratory system?
A. Transporting nutrients
B. Pumping blood
✔✔C. Exchanging oxygen and carbon dioxide
D. Breaking down food
Which type of blood vessel carries oxygen-rich blood away from the heart?
A. Veins
B. Capillaries
✔✔C. Arteries
D. Venules
What is the primary function of the small intestine?
A. Storing waste
✔✔B. Absorbing nutrients
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, C. Producing bile
D. Breaking down red blood cells
Which part of the brain controls balance and coordination?
A. Cerebrum
✔✔B. Cerebellum
C. Brainstem
D. Hypothalamus
What organ produces insulin to help regulate blood sugar?
A. Liver
✔✔B. Pancreas
C. Gallbladder
D. Kidney
Which part of the cell is responsible for generating energy?
A. Ribosome
✔✔B. Mitochondrion
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