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PAX RN and LPN entrance exams. with answers (answer key) These questions cover a wide range of biology topics, from cell structure and function to human body systems, perfect for reviewing for the PAX RN and LPN entrance exams.2024/2025$10.99
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PAX RN and LPN entrance exams. with answers (answer key) These questions cover a wide range of biology topics, from cell structure and function to human body systems, perfect for reviewing for the PAX RN and LPN entrance exams.2024/2025
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Course
PAX RN AND LPN
Institution
PAX RN AND LPN
PAX RN and LPN entrance exams. with answers (answer key) These questions cover a wide range of biology topics, from cell structure and function to human body systems, perfect for reviewing for the PAX RN and LPN entrance exams.2024/2025.Cell structure, cell division, enzyme and metabolism, cellular...
PAX RN and LPN entrance exams. with answers (answer
key) These questions cover a wide range of biology topics,
from cell structure and function to human body systems,
perfect for reviewing for the PAX RN and LPN entrance
exams.2024/2025
Cell Structure & Function:
1. What is the primary function of the cell membrane?
o A. Storage of genetic material
o B. Regulates what enters and exits the cell
o C. Synthesizes proteins
o D. Provides structural support to the cell
2. Which of the following is NOT a component of the cell
membrane?
o A. Phospholipids
o B. Proteins
o C. Carbohydrates
o D. Nucleic acids
3. The cell membrane is described as a fluid mosaic model
because:
o A. It is a rigid structure.
o B. It is flexible and contains a variety of components.
o C. It is composed solely of phospholipids.
o D. It prevents any substances from entering the cell.
, 4. What is the role of cholesterol in the cell membrane?
o A. Protein synthesis
o B. Maintaining membrane fluidity
o C. DNA replication
o D. Facilitating cell division
5. The process of diffusion occurs when molecules move
from:
o A. Low concentration to high concentration
o B. High concentration to low concentration
o C. Inside the nucleus to outside
o D. Outside the cell to inside
Cell Division:
6. Which phase of mitosis is characterized by the alignment
of chromosomes in the center of the cell?
o A. Metaphase
o B. Prophase
o C. Anaphase
o D. Telophase
7. During which phase of mitosis do sister chromatids
separate?
o A. Prophase
o B. Metaphase
o C. Anaphase
o D. Telophase
, 8. Which of the following describes cytokinesis?
o A. Duplication of chromosomes
o B. Division of the cytoplasm into two cells
o C. Replication of DNA
o D. Breakdown of the nuclear membrane
9. What is the role of the spindle fibers during mitosis?
o A. To break down the nuclear envelope
o B. To pull chromatids apart
o C. To create new organelles
o D. To replicate DNA
10. Which is the first stage of mitosis?
o A. Prophase
o B. Metaphase
o C. Anaphase
o D. Telophase
Enzymes & Metabolism:
11. Enzymes function as:
o A. Catalysts to speed up chemical reactions
o B. Structural proteins in the body
o C. Inhibitors of metabolic processes
o D. Sources of energy
12. Which factor does NOT affect enzyme activity?
o A. Temperature
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