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 organelle is responsible for energy production in both plant and animal cells?

Accepted Answer

Mitocôndria

Question 4

A scientist observes a cell with no defined nucleus and circular DNA. This cell is most likely:

Accepted Answer

A prokaryotic cell

Question 5

Which of the following structures is present in plant cells but absent in animal cells?

Accepted Answer

Cloroplasto

Question 6

Why are viruses considered exceptions to the cell theory?

Accepted Answer

They are acellular and cannot carry out life processes independently.

Question 7

Which of the following best describes the function of ribosomes?

Accepted Answer

Synthesis of proteins

Question 8

A cell contains 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 equations best represents the process of cellular respiration occurring in mitochondria?

Accepted Answer

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

Question 10

Which of the following is a function of the Golgi complex (complexo golgiense)?

Accepted Answer

Modification and packaging of proteins

Question 11

A cell is observed to have a nucleus, mitochondria, and endoplasmic reticulum. Which type of cell is this?

Accepted Answer

Eukaryotic

Question 12

Which of the following best explains why antibiotics are effective against bacteria but not viruses?

Accepted Answer

Bacteria are prokaryotic cells with metabolic pathways targeted by antibiotics, while viruses lack cellular structure.

Question 13

Which organelle is responsible for photosynthesis in plant cells?

Accepted Answer

Cloroplasto

Question 14

Which of the following best describes the main difference between prokaryotic and eukaryotic cells?

Accepted Answer

Eukaryotic cells have a defined nucleus, while prokaryotic cells do not.

Question 15

Which of the following is a correct sequence of the flow of genetic information in a cell?

Accepted Answer

DNA $$\rightarrow$$ RNA $$\rightarrow$$ Protein

Introduction to Cells: Structure, Types, and Organelles

Study Guide - Practice Questions