Question 1

Smooth endoplasmic reticulum has ribosomes on its surface and is therefore the site of protein synthesis.

Accepted Answer

A) True 
 B)False

Question 2

Using the accompanying figure, identify the organelles of a eukaryotic cell.
-Label C represents a(n) ________.

Accepted Answer

A) mitochondrion 
B) centriole 
C) Golgi apparatus 
D) ribosome 
E) nucleolus
F)plasma membrane
G)endoplasmic reticulum
H)nucleus 
A) mitochondrion 
B) centriole 
C) Golgi apparatus 
D) ribosome 
E) nucleolus
F)plasma membrane
G)endoplasmic reticulum
H)nucleus

Question 3

Each of the following statements is a basic principle of the cell doctrine EXCEPT which one of the following?

Accepted Answer

A)  All cells have a nucleus and organelles. 
B)  All living things are composed of cells and cell products. 
C)  A single cell is the smallest unit that exhibits all of the characteristics of life. 
D)  All cells come from preexisting cells. 
A)  All cells have a nucleus and organelles. 
B)  All living things are composed of cells and cell products. 
C)  A single cell is the smallest unit that exhibits all of the characteristics of life. 
D)  All cells come from preexisting cells.

Question 4

Receptors are membrane-bound proteins typically located on the cell surface that function to bind other molecules based on shape or structure.

Accepted Answer

A) True 
 B)False

Question 5

The role of cilia on cells is to anchor cells by attaching them to other cells.

Accepted Answer

A) True 
 B)False

Question 6

Match each of the following descriptions to the appropriate term.
-large network of membranes in which cellular lipids are synthesized

Accepted Answer

A) nucleolus 
B) nucleus 
C) peroxisome 
D) Golgi apparatus 
E) microvilli
F)centrioles
G)smooth endoplasmic reticulum
H)ribosome 
A) nucleolus 
B) nucleus 
C) peroxisome 
D) Golgi apparatus 
E) microvilli
F)centrioles
G)smooth endoplasmic reticulum
H)ribosome

Question 7

In the cell, proteins that are synthesized for immediate use by the cell are normally produced

Accepted Answer

A)  in the plasma membrane. 
B)  in the nucleus. 
C)  in the Golgi apparatus. 
D)  on smooth endoplasmic reticulum. 
E)  on free-floating ribosomes. 
A)  in the plasma membrane. 
B)  in the nucleus. 
C)  in the Golgi apparatus. 
D)  on smooth endoplasmic reticulum. 
E)  on free-floating ribosomes.

Question 8

If oxygen is present in a cell, pyruvate is converted to ________, which is transported to the citric acid cycle in the form of ________.

Accepted Answer

an acetyl

Question 9

Where in a typical human cell does glycolysis occur?

Accepted Answer

A)  mitochondrion 
B)  Golgi apparatus 
C)  cytoplasm 
D)  nucleus 
E)  rough endoplasmic reticulum 
A)  mitochondrion 
B)  Golgi apparatus 
C)  cytoplasm 
D)  nucleus 
E)  rough endoplasmic reticulum

Question 10

Match each component of the cell membrane to its description.
-membrane surface protein that functions to recognize molecules in body fluids

Accepted Answer

A) embedded protein 
B) cholesterol 
C) membrane surface receptor 
D) phospholipid bilayer 
A) embedded protein 
B) cholesterol 
C) membrane surface receptor 
D) phospholipid bilayer

Question 11

In the electron transport system, the energy used to synthesize ATP comes from the diffusion of ________ from the outer compartment of the mitochondria to the inner compartment.

Accepted Answer

A)  electrons 
B)  NADH 
C)  hydrogen ions 
D)  FADH2 
E)  pyruvate 
A)  electrons 
B)  NADH 
C)  hydrogen ions 
D)  FADH2 
E)  pyruvate

Question 12

Cellular respiration is essential to eukaryotic cells because

Accepted Answer

A)  it is a process of anabolic reactions necessary for DNA synthesis. 
B)  it breaks down ATP molecules into ADP and a phosphate. 
C)  the process releases energy from organic substrates. 
D)  it releases energy from anabolic reactions, which then can be used to drive catabolic reactions. 
E)  the process stimulates the catabolism of potentially toxic molecules absorbed during digestion. 
A)  it is a process of anabolic reactions necessary for DNA synthesis. 
B)  it breaks down ATP molecules into ADP and a phosphate. 
C)  the process releases energy from organic substrates. 
D)  it releases energy from anabolic reactions, which then can be used to drive catabolic reactions. 
E)  the process stimulates the catabolism of potentially toxic molecules absorbed during digestion.

Question 13

Most of the ATP produced during cell respiration is produced during the citric acid cycle.

Accepted Answer

A) True 
 B)False

Question 14

Which one of the following best explains how water moves freely across a plasma membrane?

Accepted Answer

A)  Water moves directly through the phospholipid bilayer because of the charges on phospholipids. 
B)  Water is brought into the cell by facilitated diffusion but released by exocytosis. 
C)  It is actively transported across the membrane. 
D)  Water moves through protein-lined channels in the plasma membrane. 
E)  The passage of water across a plasma membrane requires facilitated transport. 
A)  Water moves directly through the phospholipid bilayer because of the charges on phospholipids. 
B)  Water is brought into the cell by facilitated diffusion but released by exocytosis. 
C)  It is actively transported across the membrane. 
D)  Water moves through protein-lined channels in the plasma membrane. 
E)  The passage of water across a plasma membrane requires facilitated transport.

Question 15

The citric acid cycle and the electron transport chain occur in the ________ of the cell.

Accepted Answer

The answer of The citric acid cycle and the electron...

Question 16

Microtubules and microfilaments compose the ________, which forms an internal network of support for the cell.

Accepted Answer

The answer of Microtubules and microfilaments compose the ________, which...

Question 17

Cholesterol helps plasma membranes become less ________.

Accepted Answer

The answer of Cholesterol helps plasma membranes become less ________....

Question 18

Which one of the following is TRUE regarding metabolism?

Accepted Answer

A)  Metabolism involves about 200 different chemical reactions occurring in a living organism. 
B)  An anabolic reaction is one in which a large molecule is broken down into smaller molecules. 
C)  Linear metabolic pathways occur when the product of one reaction is used as the substrate of the previous reaction. 
D)  Catabolic pathways result in the release of energy. 
E)  Anabolic reactions generate molecules with decreased energy content. 
A)  Metabolism involves about 200 different chemical reactions occurring in a living organism. 
B)  An anabolic reaction is one in which a large molecule is broken down into smaller molecules. 
C)  Linear metabolic pathways occur when the product of one reaction is used as the substrate of the previous reaction. 
D)  Catabolic pathways result in the release of energy. 
E)  Anabolic reactions generate molecules with decreased energy content.

Question 19

Alcohol is detoxified in organelles called ________.

Accepted Answer

The answer of Alcohol is detoxified in organelles called ________....

Question 20

Gated channels are especially important in regulating the transport of ________ across a plasma membrane.

Accepted Answer

A)  glucose 
B)  water 
C)  ions 
D)  small uncharged molecules 
E)  nucleic acids 
A)  glucose 
B)  water 
C)  ions 
D)  small uncharged molecules 
E)  nucleic acids

Exam 3: Structure and Function of Cells

Smooth endoplasmic reticulum has ribosomes on its surface and is therefore the site of protein synthesis.

Using the accompanying figure, identify the organelles of a eukaryotic cell. -Label C represents a(n) ________.

Each of the following statements is a basic principle of the cell doctrine EXCEPT which one of the following?

Receptors are membrane-bound proteins typically located on the cell surface that function to bind other molecules based on shape or structure.

The role of cilia on cells is to anchor cells by attaching them to other cells.

Match each of the following descriptions to the appropriate term. -large network of membranes in which cellular lipids are synthesized

In the cell, proteins that are synthesized for immediate use by the cell are normally produced

If oxygen is present in a cell, pyruvate is converted to ________, which is transported to the citric acid cycle in the form of ________.

Where in a typical human cell does glycolysis occur?

Match each component of the cell membrane to its description. -membrane surface protein that functions to recognize molecules in body fluids

In the electron transport system, the energy used to synthesize ATP comes from the diffusion of ________ from the outer compartment of the mitochondria to the inner compartment.

Cellular respiration is essential to eukaryotic cells because

Most of the ATP produced during cell respiration is produced during the citric acid cycle.

Which one of the following best explains how water moves freely across a plasma membrane?

The citric acid cycle and the electron transport chain occur in the ________ of the cell.

Microtubules and microfilaments compose the ________, which forms an internal network of support for the cell.

Cholesterol helps plasma membranes become less ________.

Which one of the following is TRUE regarding metabolism?

Alcohol is detoxified in organelles called ________.

Gated channels are especially important in regulating the transport of ________ across a plasma membrane.

Human Biology, Science, and Society

The Chemistry of Living Things

From Cells to Organ Systems

The Skeletal System

The Muscular System

Blood

Heart and Blood Vessels

The Immune System and Mechanisms of Defense

The Respiratory System: Exchange of Gases

The Nervous System: Integration and Control

Sensory Mechanisms

The Endocrine System

The Digestive System and Nutrition

The Urinary System

Reproductive Systems

Cell Reproduction and Differentiation

Cancer: Uncontrolled Cell Division and Differentiation

Genetics and Inheritance

DNA Technology and Genetic Engineering

Development and Aging

Evolution and the Origins of Life

Ecosystems and Populations

Human Impacts, Biodiversity, and Environmental Issues

Filters

If oxygen is present in a cell, pyruvate is converted to , which is transported to the citric acid cycle in the form of .