Question 1

According to the cell theory, which of the following statements is correct?

Accepted Answer

All cells arise from pre-existing cells.

Question 2

Which of the following is NOT considered a basic part of all cells?

Accepted Answer

Parede celular

Question 3

Which structure is present in both prokaryotic and eukaryotic cells?

Accepted Answer

Membrana plasmática

Question 4

A scientist observes a cell with no defined nucleus and no membrane-bound organelles. This cell is most likely:

Accepted Answer

A prokaryotic cell

Question 5

Which of the following organelles is responsible for energy production in eukaryotic cells?

Accepted Answer

Mitocôndria

Question 6

Which of the following best explains why viruses are considered exceptions to the cell theory?

Accepted Answer

They are acellular and cannot carry out life processes independently.

Question 7

Which organelle is found in plant cells but not in animal cells?

Accepted Answer

Cloroplasto

Question 8

A cell is observed to have a large central vacuole, chloroplasts, and a cell wall. This cell is most likely from:

Accepted Answer

A plant

Question 9

Which of the following best describes the function of ribosomes?

Accepted Answer

Synthesize proteins

Question 10

If a cell lacks mitochondria, which process would be most directly affected?

Accepted Answer

Cellular respiration

Question 11

Which of the following equations best represents the process occurring in mitochondria?

Accepted Answer

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

Question 12

Which of the following is a function of the plasma membrane?

Accepted Answer

Controlling the movement of substances into and out of the cell

Question 13

Which of the following best distinguishes eukaryotic cells from prokaryotic cells?

Accepted Answer

Presence of membrane-bound organelles

Question 14

A student observes a cell under a microscope and notes the presence of a nucleus, mitochondria, and endoplasmic reticulum. This cell is most likely:

Accepted Answer

A eukaryotic cell

Question 15

Which of the following is NOT an organelle found in eukaryotic cells?

Accepted Answer

Capsídeo

Introduction to Cells: Structure, Types, and Organelles

Study Guide - Practice Questions