Question 1

If you wanted to study the various shapes of different kinds of bacteria, you could use

Accepted Answer

A) the unaided eye. 
B) a light microscope or the unaided eye. 
C) a light microscope or an electron microscope. 
D) an electron microscope, but not a light microscope. 
A) the unaided eye. 
B) a light microscope or the unaided eye. 
C) a light microscope or an electron microscope. 
D) an electron microscope, but not a light microscope. C

Question 2

When a message molecule binds to a receptor,

Accepted Answer

A) the message molecule enters the target cell. 
B) the cell begins to grow and divide. 
C) the target cell passes the message molecule to another target cell. 
D) a series of chemical reactions is initiated. 
A) the message molecule enters the target cell. 
B) the cell begins to grow and divide. 
C) the target cell passes the message molecule to another target cell. 
D) a series of chemical reactions is initiated. D

Question 3

The organelles that build proteins in cells are called

Accepted Answer

A) mitochondria. 
B) ribosomes. 
C) Golgi apparatuses. 
D) lysosomes. 
A) mitochondria. 
B) ribosomes. 
C) Golgi apparatuses. 
D) lysosomes. B

Question 4

Fats and oils are

Accepted Answer

A) proteins. 
B) carbohydrates. 
C) lipids. 
D) nucleic acids. 
A) proteins. 
B) carbohydrates. 
C) lipids. 
D) nucleic acids.

Question 5

One difference between prokaryotic and eukaryotic cells is that

Accepted Answer

A) prokaryotic cells have a nucleus, whereas eukaryotic cells do not. 
B) prokaryotic cells have existed on Earth far longer than eukaryotic cells. 
C) the DNA of prokaryotic cells is found in linear chromosomes, whereas the DNA of eukaryotic cells is found in a single circular chromosome. 
D) eukaryotic cells are generally smaller than prokaryotic cells. 
A) prokaryotic cells have a nucleus, whereas eukaryotic cells do not. 
B) prokaryotic cells have existed on Earth far longer than eukaryotic cells. 
C) the DNA of prokaryotic cells is found in linear chromosomes, whereas the DNA of eukaryotic cells is found in a single circular chromosome. 
D) eukaryotic cells are generally smaller than prokaryotic cells.

Question 6

In the chemical equation for the process of photosynthesis, the reactants are

Accepted Answer

A) carbon dioxide and oxygen. 
B) carbon dioxide, water, and sunlight. 
C) glucose. 
D) glucose and oxygen. 
A) carbon dioxide and oxygen. 
B) carbon dioxide, water, and sunlight. 
C) glucose. 
D) glucose and oxygen.

Question 7

The reactants of a reaction bind to an enzyme's ________, as does a ________ of the enzyme.

Accepted Answer

A) active site; competitive inhibitor 
B) substrate; competitive inhibitor 
C) active site; noncompetitive inhibitor 
D) substrate; noncompetitive inhibitor 
A) active site; competitive inhibitor 
B) substrate; competitive inhibitor 
C) active site; noncompetitive inhibitor 
D) substrate; noncompetitive inhibitor

Question 8

During the light-dependent reactions of photosynthesis,

Accepted Answer

A) glucose is released. 
B) oxygen is released. 
C) glucose and oxygen are released. 
D) carbon dioxide is used to make glucose. 
A) glucose is released. 
B) oxygen is released. 
C) glucose and oxygen are released. 
D) carbon dioxide is used to make glucose.

Question 9

The sodium-potassium pump provides an example of

Accepted Answer

A) diffusion. 
B) facilitated diffusion. 
C) active transport. 
D) endocytosis. 
A) diffusion. 
B) facilitated diffusion. 
C) active transport. 
D) endocytosis.

Question 10

During which of the following processes is most ATP generated?

Accepted Answer

A) glycolysis 
B) Krebs cycle 
C) electron transport 
D) fermentation 
A) glycolysis 
B) Krebs cycle 
C) electron transport 
D) fermentation

Question 11

During alcoholic fermentation,

Accepted Answer

A) oxygen is used. 
B) carbon dioxide is released. 
C) water is released. 
D) lactic acid is produced. 
A) oxygen is used. 
B) carbon dioxide is released. 
C) water is released. 
D) lactic acid is produced.

Question 12

Which of the following is not a characteristic of living things?

Accepted Answer

A) Living things convert energy from one form to another. 
B) Living things develop and grow. 
C) Living things allow their internal environments to match conditions in the external environment. 
D) Living things are part of populations that evolve. 
A) Living things convert energy from one form to another. 
B) Living things develop and grow. 
C) Living things allow their internal environments to match conditions in the external environment. 
D) Living things are part of populations that evolve.

Question 13

The gases oxygen and carbon dioxide move in and out of cells through

Accepted Answer

A) diffusion. 
B) facilitated diffusion. 
C) active transport. 
D) endocytosis. 
A) diffusion. 
B) facilitated diffusion. 
C) active transport. 
D) endocytosis.

Question 14

What is photosynthesis? What are the reactants and what are the products in the overall chemical reaction for photosynthesis?

Accepted Answer

Photosynthesis is a process certain orga

Question 15

Why do cells need catalysts for many of the chemical reactions they run? What types of molecules function as catalysts in cells?

Accepted Answer

Reacting molecules need to have a certai

Question 16

The carbohydrates found in the cell membrane function in

Accepted Answer

A) controlling transport in and out of cells. 
B) cell recognition, the ability to distinguish one type of cell from another. 
C) controlling the chemical reactions that occur in cells. 
D) none of the above 
A) controlling transport in and out of cells. 
B) cell recognition, the ability to distinguish one type of cell from another. 
C) controlling the chemical reactions that occur in cells. 
D) none of the above

Question 17

A prokaryotic cell could potentially have

Accepted Answer

A) linear chromosomes. 
B) a nucleus. 
C) a cell wall. 
D) mitochondria. 
A) linear chromosomes. 
B) a nucleus. 
C) a cell wall. 
D) mitochondria.

Question 18

How are eukaryotic cells different from prokaryotic cells?

Accepted Answer

Eukaryotic cells have their DNA in a dis

Question 19

The organelles that function as a cell's "garbage disposals," breaking down organic materials, are

Accepted Answer

A) mitochondria. 
B) ribosomes. 
C) Golgi apparatuses. 
D) lysosomes. 
A) mitochondria. 
B) ribosomes. 
C) Golgi apparatuses. 
D) lysosomes.

Question 20

Cellulose, the macromolecule found in plant cell walls, is a

Accepted Answer

A) protein. 
B) carbohydrate. 
C) lipid. 
D) nucleic acid. 
A) protein. 
B) carbohydrate. 
C) lipid. 
D) nucleic acid.

Exam 15: The Basic Unit of Life-The Cell

If you wanted to study the various shapes of different kinds of bacteria, you could use

When a message molecule binds to a receptor,

The organelles that build proteins in cells are called

Fats and oils are

One difference between prokaryotic and eukaryotic cells is that

In the chemical equation for the process of photosynthesis, the reactants are

The reactants of a reaction bind to an enzyme's ________, as does a ________ of the enzyme.

During the light-dependent reactions of photosynthesis,

The sodium-potassium pump provides an example of

During which of the following processes is most ATP generated?

During alcoholic fermentation,

Which of the following is not a characteristic of living things?

The gases oxygen and carbon dioxide move in and out of cells through

What is photosynthesis? What are the reactants and what are the products in the overall chemical reaction for photosynthesis?

Why do cells need catalysts for many of the chemical reactions they run? What types of molecules function as catalysts in cells?

The carbohydrates found in the cell membrane function in

A prokaryotic cell could potentially have

How are eukaryotic cells different from prokaryotic cells?

The organelles that function as a cell's "garbage disposals," breaking down organic materials, are

Cellulose, the macromolecule found in plant cell walls, is a

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