Biology Unit 2 Practice Test: Cells

34 Questions | By Awest | Last updated: Mar 14, 2022 | Total Attempts: 114

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1.

After learning about viruses in Biology class, Sam decides to have his cat vaccinated against feline leukemia virus. According to cell theory, are viruses, such as feline leukemia, considered living things? Type question here
- A.
  
  Yes, because they are composed of cells.
- B.
  
  No, because they cannot evolve.
- C.
  
  No, because they are not composed of cells.
- D.
  
  Yes, because they can reproduce.
2.

Which of the following do prokaryotes, eukaryotes, and viruses all have in common?
- A.
  
  They are alive.
- B.
  
  They evolve.
- C.
  
  They are made of at least one cell.
- D.
  
  All of the above.
3.

What can a vaccine do when it is injected into the body?
- A.
  
  Destroy new pathogens as they arise in the body
- B.
  
  Prompt the body to produce immunity to a disease
- C.
  
  Produce toxins that disrupt bacterial equilibrium
- D.
  
  Use bacterial cells for food
4.

What do prokaryotes and eukaryotes have in common?
- A.
  
  Ribosomes
- B.
  
  Nucleus
- C.
  
  Mitochondria
- D.
  
  Chloroplasts
5.

Eukaryotes usually contain
- A.
  
  A nucleus.
- B.
  
  Specialized organelles surrounded by membranes.
- C.
  
  Genetic material in the form of DNA and RNA.
- D.
  
  All of the above
6.

Which of the following is TRUE of viruses?
- A.
  
  Viruses do NOT evolve.
- B.
  
  Viruses do NOT use and obtain materials and energy.
- C.
  
  Viruses do NOT have a genetic code.
- D.
  
  Viruses do NOT reproduce.
7.

The presence of which structure indicates that cells are NOT bacteria?
- A.
  
  Cell wall
- B.
  
  DNA
- C.
  
  Chloroplast
- D.
  
  Ribosome
8.

All cells contain which of the following?
- A.
  
  Viruses
- B.
  
  Cytoplasm
- C.
  
  A nucleus
- D.
  
  Organelles
9.

What is the basic structure of a virus?
- A.
  
  A tail sheath surrounded by tail fibers
- B.
  
  A tiny cell surrounded by a cell wall
- C.
  
  DNA or RNA surrounded by a protein coat
- D.
  
  A capsid surrounded by a protein coat
10.

Prokaryotes are single-celled organisms that do not have
- A.
  
  A cell wall.
- B.
  
  A cell membrane.
- C.
  
  Membrane-bound organelles.
- D.
  
  Definite shape.
11.

Which of the following contains a nucleus?
- A.
  
  Organelles
- B.
  
  Prokaryotes
- C.
  
  Bacteria
- D.
  
  Eukaryotes
- E.
  
  All of the above
12.

Viruses cause disease by
- A.
  
  Producing toxins that harm the body.
- B.
  
  Producing antibodies.
- C.
  
  Forming endospores in the body.
- D.
  
  Entering body cells and replicating.
- E.
  
  All of the above
13.

Which of the following is a function of the cell membrane?
- A.
  
  Regulates which materials enter and leave the cell
- B.
  
  Stores water, salt, proteins, and carbohydrates
- C.
  
  Breaks down lipids, carbohydrates, and proteins from foods
- D.
  
  Keeps the cell wall in place
- E.
  
  All of the above
14.

Naomi adds a chemical called cyclohexamide to cells grown in a test tube. Within minutes, she identifies short incomplete segments of proteins in the cells. On which organelle does cyclohexamide act?
- A.
  
  Ribosome
- B.
  
  Endoplasmic reticulum
- C.
  
  Golgi apparatus
- D.
  
  Nucleus
15.

The main function of the cell wall is to
- A.
  
  Support and protect the cell.
- B.
  
  Help the cell move.
- C.
  
  Direct the activities of the cell.
- D.
  
  Store DNA.
- E.
  
  All of the above
16.

Which organelle contains digestive enzymes used to break down large compounds into small particles that the cell can use?
- A.
  
  Mitochondrion
- B.
  
  Lysosome
- C.
  
  Endoplasmic reticulum
- D.
  
  Golgi apparatus
17.

Which of the following is NOT true about endoplasmic reticulum?
- A.
  
  Smooth Endoplasmic Reticulum makes lipids for membranes.
- B.
  
  Smooth Endoplasmic Reticulum modifies proteins.
- C.
  
  Rough Endoplasmic Reticulum modifies proteins.
- D.
  
  Rough Endoplasmic Reticulum has ribosomes attached to its surface.
18.

Plant cells have a large membrane-bound compartment in which water, waste products, and nutrients can be stored. This compartment is called the
- A.
  
  Chloroplast.
- B.
  
  Vacuole.
- C.
  
  Mitochondrion.
- D.
  
  Golgi apparatus.
19.

The genetic material that provides instructions for making proteins is
- A.
  
  Cytoplasm.
- B.
  
  Cytosol.
- C.
  
  DNA.
- D.
  
  A ribosome.
20.

Which cells have a cell membrane, cytoplasm, ribosomes, and DNA?
- A.
  
  Only eukaryotic cells
- B.
  
  All cells
- C.
  
  Only prokaryotic cells
- D.
  
  Only animal cells
21.

A cell that requires a lot of energy might contain large numbers of
- A.
  
  Mitochondria.
- B.
  
  Chromosomes.
- C.
  
  Vacuoles.
- D.
  
  Lysosomes.
22.

Which of the following organelles makes food molecules for the cell through the process of photosynthesis?
- A.
  
  Cytoplasm
- B.
  
  Chloroplast
- C.
  
  Lysosome
- D.
  
  Mitochondria
23.

Which organelle converts the chemical energy stored in food into compounds that are more convenient for the cell to use for energy?
- A.
  
  Endoplasmic reticulum
- B.
  
  Chloroplast
- C.
  
  Mitochondrion
- D.
  
  Golgi apparatus
24.

Which of the following structures serves as the cell’s boundary from its environment?
- A.
  
  Chloroplast
- B.
  
  Cell membrane
- C.
  
  Mitochondrion
- D.
  
  Nuclear membrane
25.

Which of the following is NOT a function of the nucleus?
- A.
  
  Controls most of the cell’s processes
- B.
  
  Contains the information needed to make proteins
- C.
  
  Stores DNA
- D.
  
  Makes proteins