Question 1

Which organelle is primarily responsible for synthesizing ATP, the main energy currency of the cell, and what is the chemical equation for aerobic cellular respiration that occurs there?

Accepted Answer

Mitochondrion; $$C_6H_{12}O_6$ + 6O_2 \rightarrow 6CO_2 + 6H_2O + ATP$$

Question 2

A patient has a genetic disorder that prevents the formation of spindle fibers during mitosis. Which organelle is most likely defective, and during which phase would cell division halt?

Accepted Answer

Centrioles; Prophase

Question 3

Which type of epithelial tissue is best suited for rapid diffusion and filtration, and where is it commonly found?

Accepted Answer

Simple squamous epithelium; lining of alveoli in the lungs

Question 4

A biopsy of a patient's tissue reveals a single layer of tall, column-like cells with nuclei aligned near the base. Which tissue type is this, and what is its primary function?

Accepted Answer

Simple columnar epithelium; absorption and secretion

Question 5

Which connective tissue type is most specialized for storing energy, and what is the main cell type found in this tissue?

Accepted Answer

Adipose tissue; adipocytes

Question 6

A tendon is composed primarily of which type of connective tissue, and what is the main protein fiber found in this tissue?

Accepted Answer

Dense regular connective tissue; collagen

Question 7

Which of the following best describes the function of the Golgi apparatus in a secretory cell?

Accepted Answer

Modifies, sorts, and packages proteins for secretion

Question 8

A patient with a deficiency in lysosomal enzymes is likely to experience which of the following cellular problems?

Accepted Answer

Accumulation of undigested materials within the cell

Question 9

Which tissue type is responsible for voluntary movement, and what is a distinguishing microscopic feature of this tissue?

Accepted Answer

Skeletal muscle tissue; multinucleated cells with striations

Question 10

During which phase of mitosis do chromosomes align at the cell's equator, and what is the significance of this arrangement?

Accepted Answer

Metaphase; ensures equal separation of genetic material

Question 11

Which connective tissue type forms the intervertebral discs and is specialized for resisting compression?

Accepted Answer

Fibrocartilage

Question 12

A histological slide shows tissue with lacunae, a rigid matrix, and concentric rings (osteons). What tissue is this, and what is its primary function?

Accepted Answer

Bone (osseous tissue); support and protection

Question 13

Which of the following best describes the function of neuroglia in nervous tissue?

Accepted Answer

Support, insulate, and protect neurons

Question 14

A tissue sample from the urinary bladder shows cells that change shape when stretched. What is this tissue, and what is its functional advantage?

Accepted Answer

Transitional epithelium; allows for distension and recoil

Question 15

Which of the following is a function of areolar connective tissue in the body?

Accepted Answer

Wraps and cushions organs

Question 16

Which of the following best explains why blood is classified as a connective tissue?

Accepted Answer

It consists of cells suspended in a nonliving matrix (plasma)

Question 17

A patient with a mutation affecting collagen synthesis would most likely have defects in which tissue type?

Accepted Answer

Connective tissue

Question 18

Which of the following best describes the difference between simple and stratified epithelia?

Accepted Answer

Simple epithelia have one layer of cells; stratified epithelia have two or more layers

Question 19

Which of the following is a key function of smooth muscle tissue, and where is it commonly found?

Accepted Answer

Involuntary movement in the walls of hollow organs

Question 20

A scientist is studying a tissue that contains neurons and neuroglia. Which organ system is this tissue a part of, and what is its main function?

Accepted Answer

Nervous system; regulation and control of body functions

Cells and Tissues: Structure, Function, and Classification

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