Question 1

Which statement best describes the Cell Theory as outlined in the study materials?

Accepted Answer

Cells are the basic unit of life, and all cells arise from pre-existing cells.

Question 2

Which organelle is responsible for synthesizing proteins and can be found either floating freely in the cytoplasm or attached to the endoplasmic reticulum?

Accepted Answer

Ribosome

Question 3

A scientist observes a cell with a nucleus, mitochondria, and chloroplasts. Which type of cell is being observed?

Accepted Answer

Plant cell

Question 4

Which structure provides additional support and protection to plant cells but is absent in animal cells?

Accepted Answer

Cell wall

Question 5

The double membrane structure of mitochondria is important because:

Accepted Answer

It creates distinct metabolic environments for efficient ATP production.

Question 6

Which formula correctly calculates the surface area of a spherical cell?

Accepted Answer

$$SA = 4 \pi r^2$

Question 7

Why is a high surface area to volume ratio important for cell function?

Accepted Answer

It increases the efficiency of metabolic processes and waste removal.

Question 8

Which organelle is more prominent in animal cells and is involved in waste digestion?

Accepted Answer

Lysosome

Question 9

A mutation causes a cell to lack microtubules. Which process would be most directly affected?

Accepted Answer

Cell division

Question 10

Which of the following best explains why plant cells can maintain turgor pressure while animal cells cannot?

Accepted Answer

Plant cells have a cell wall and a large central vacuole.

Question 11

Which organelle modifies, sorts, and packages proteins and lipids for transport out of the cell?

Accepted Answer

Golgi apparatus

Question 12

A cell is observed to have a plasma membrane, ribosomes, and a nucleoid region but no membrane-bound organelles. What type of cell is this?

Accepted Answer

Prokaryotic cell

Question 13

Which of the following is a function of the cytoskeleton in eukaryotic cells?

Accepted Answer

Providing structural support and enabling cell movement

Question 14

Which organelle contains digestive enzymes that break down waste materials and cellular debris?

Accepted Answer

Lysosome

Question 15

Which structure in plant cells channels communication and transport between adjacent cells?

Accepted Answer

Plasmodesmata

Question 16

Which of the following is NOT a function of the endomembrane system?

Accepted Answer

Energy production through cellular respiration

Question 17

A cell with a high rate of ATP production is likely to have which of the following features?

Accepted Answer

A highly folded inner mitochondrial membrane (cristae)

Question 18

Which of the following best describes the role of peroxisomes in the cell?

Accepted Answer

They detoxify harmful substances and break down fatty acids.

Question 19

Which organelle is responsible for photosynthesis in plant cells?

Accepted Answer

Chloroplast

Question 20

Which of the following structures is found in animal cells but not in plant cells?

Accepted Answer

Centrioles

Unit 2: Cell Structure and Function – Study Guide

Guida di studio - Domande di pratica

Study guide - Flashcard