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A&P 1 - Exam 1 - Chapters 1-3 Cumulative Review Questions and Answers | Latest Version | 2024/2025 | Graded A+ £8.99
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A&P 1 - Exam 1 - Chapters 1-3 Cumulative Review Questions and Answers | Latest Version | 2024/2025 | Graded A+
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A&P 1 - Exam 1 - Chapters 1-3 Cumulative Review Questions and Answers | Latest Version | 2024/2025 | Graded A+ What is the primary function of the mitochondria in eukaryotic cells? To produce ATP through cellular respiration, providing energy for cellular activities. How does the str...

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  • August 20, 2024
  • 74
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • ap 1 exam 1 chapters 1 3 cumulative review qu

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A&P 1 - Exam 1 - Chapters 1-3
Cumulative Review Questions and
Answers | Latest Version | 2024/2025 |
Graded A+
What is the primary function of the mitochondria in eukaryotic cells?




✔✔ To produce ATP through cellular respiration, providing energy for cellular activities.




How does the structure of the plasma membrane contribute to its function?




✔✔ The plasma membrane's phospholipid bilayer and embedded proteins regulate the movement

of substances in and out of the cell.




What are the four primary tissue types in the human body?




✔✔ Epithelial, connective, muscle, and nervous tissues.




How do enzymes function as biological catalysts?



1

,✔✔ Enzymes lower the activation energy required for biochemical reactions, thereby increasing

the reaction rate.




What is the role of ribosomes in protein synthesis?




✔✔ Ribosomes facilitate the translation of mRNA into amino acid sequences, forming proteins.




What are the main stages of the cell cycle?




✔✔ Interphase (which includes G1, S, and G2 phases) and Mitotic phase (which includes mitosis

and cytokinesis).




How does the structure of DNA support its function in heredity?




✔✔ DNA's double-helix structure and base-pairing rules enable accurate replication and

transmission of genetic information.




What is the difference between passive and active transport mechanisms?
2

,✔✔ Passive transport requires no energy and relies on concentration gradients, while active

transport requires energy to move substances against their gradients.




What is the significance of the sodium-potassium pump in maintaining cellular function?




✔✔ The sodium-potassium pump maintains the electrochemical gradient by actively transporting

sodium out of the cell and potassium into the cell.




How does the structure of a neuron facilitate its function?




✔✔ The neuron's long axon and branched dendrites enable efficient transmission of electrical

signals over long distances.




What is the role of the endoplasmic reticulum in cellular metabolism?




✔✔ The endoplasmic reticulum synthesizes lipids and proteins, and transports them to other

parts of the cell.




3

, How do tight junctions contribute to tissue integrity?




✔✔ Tight junctions form barriers between cells, preventing the leakage of extracellular fluids

and maintaining tissue integrity.




What are the primary functions of the skeletal system?




✔✔ The skeletal system provides support, facilitates movement, protects internal organs, stores

minerals and lipids, and produces blood cells.




How do the structures of the three types of muscle tissue differ?




✔✔ Skeletal muscle is striated and voluntary, cardiac muscle is striated and involuntary, and

smooth muscle is non-striated and involuntary.




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




✔✔ The Golgi apparatus modifies, sorts, and packages proteins and lipids for secretion or

delivery to other organelles.

4

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