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HESI A2 Biology Practice Questions and Answers | Latest Version | 2025/2026 | Correct & Verified
Which organelle is responsible for producing energy in the form of ATP?
- Nucleus
- Ribosome
- Golgi apparatus
✔✔B. Mitochondria
Which type of muscle tissue is voluntary and striated?
- Smooth muscle
- Cardiac muscle
- Connective tissue
✔✔B. Skeletal muscle
Which molecule carries genetic information?
A. RNA
- Protein 1 / 4
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✔✔C. DNA
- Lipid
Which blood cells are responsible for transporting oxygen?
- Platelets
- White blood cells
- Plasma
✔✔B. Red blood cells
What is the basic unit of life?
- Organ
- Tissue
- Organ system
✔✔C. Cell
Which part of the brain controls balance and coordination?
- Cerebrum
✔✔B. Cerebellum 2 / 4
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- Brainstem
- Hypothalamus
Which system is responsible for producing hormones?
- Nervous system
- Circulatory system
- Skeletal system
✔✔B. Endocrine system
What is the main function of the alveoli in the lungs?
- Protect against infection
- Pump air into bronchi
- Produce surfactant
✔✔B. Gas exchange
Which type of joint allows movement in all directions, such as the hip?
- Hinge joint
✔✔B. Ball-and-socket joint 3 / 4
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- Pivot joint
- Gliding joint
Which macromolecule is the main source of quick energy?✔✔A. Carbohydrates
- Proteins
- Lipids
- Nucleic acids
Which organ filters blood and produces urine?
- Liver
- Pancreas
- Heart
✔✔B. Kidney
Which type of blood vessel carries blood away from the heart?✔✔A. Arteries
- Veins
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