$$3Na^+_{\text{inside}} + 2K^+_{\text{outside}} + ATP \rightarrow 3Na^+_{\text{outside}} + 2K^+_{\text{inside}} + ADP + P_i$$

Question 1

Which organelle is primarily responsible for producing ATP through cellular respiration in muscle cells, enabling them to meet high energy demands?

Accepted Answer

Mitochondrion

Question 2

A red blood cell is placed in a solution with a lower solute concentration than inside the cell. What will most likely happen to the cell?

Accepted Answer

It will swell and may burst (lysis) due to water influx.

Question 3

Which equation correctly represents the action of the sodium-potassium pump during active transport?

Accepted Answer

$$3Na^+_{	ext{inside}} + 2K^+_{	ext{outside}} + ATP ightarrow 3Na^+_{	ext{outside}} + 2K^+_{	ext{inside}} + ADP + P_i$$

Question 4

Which type of membrane transport requires energy to move substances against their concentration gradient?

Accepted Answer

Active transport

Question 5

A patient is given intravenous fluids that are isotonic to their blood plasma. What effect will this have on their red blood cells?

Accepted Answer

Cells will remain the same size.

Question 6

Which organelle is responsible for packaging proteins and lipids for secretion or use within the cell?

Accepted Answer

Golgi apparatus

Question 7

Facilitated diffusion differs from simple diffusion in that:

Accepted Answer

It requires specific transport proteins to move molecules across the membrane.

Question 8

Which tissue type is primarily responsible for conducting electrical impulses in the brain and spinal cord?

Accepted Answer

Nervous tissue

Question 9

A cell is surrounded by a hypertonic solution. What is the most likely effect on the cell?

Accepted Answer

Cell will lose water and shrink.

Question 10

Which of the following best describes the function of lysosomes?

Accepted Answer

Breaking down waste materials and cellular debris

Question 11

Which of the following is a function of epithelial tissue?

Accepted Answer

Covering body surfaces and lining cavities

Question 12

Which organelle contains the genetic material (DNA) of the cell?

Accepted Answer

Nucleus

Question 13

Which process describes the movement of water molecules across a selectively permeable membrane from high to low concentration?

Accepted Answer

Osmosis

Question 14

Which type of tissue is responsible for supporting, binding, and protecting organs in the human body?

Accepted Answer

Connective tissue

Question 15

A cell membrane is described as selectively permeable. What does this mean?

Accepted Answer

It regulates the movement of certain substances in and out of the cell.

Question 16

Which of the following molecules would require a transport protein to cross the cell membrane?

Accepted Answer

Glucose ($$C_6H_{12}O_6$)

Question 17

Which organelle is the site of protein synthesis in the cell?

Accepted Answer

Ribosome

Question 18

Which of the following best describes the function of muscle tissue?

Accepted Answer

Movement of the body and its parts

Question 19

A cell is placed in an isotonic solution. Which statement best describes the movement of water across the cell membrane?

Accepted Answer

There is no net movement of water; the cell remains the same size.

Question 20

Which organelle is responsible for synthesizing proteins and lipids, with rough and smooth regions?

Accepted Answer

Endoplasmic reticulum

Cell Structure, Membrane Transport, and Tissue Types: Study Notes for Anatomy & Physiology

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