Question 1

Which one of the following is TRUE regarding the sodium-potassium pump?

Accepted Answer

A)  Cholesterol molecules within the plasma membrane pump sodium out of the cell and potassium into the cell. 
B)  In order to reduce cell volume, the cell decreases the activity of the sodium-potassium pump. 
C)  Because the sodium-potassium pump works on the principle of diffusion, it does not require energy. 
D)  Increased activity of the sodium-potassium pump causes an increase in cell volume. 
E)  In order to maintain a certain cell volume, the sodium-potassium pump exchanges three sodium ions for two potassium ions. 
A)  Cholesterol molecules within the plasma membrane pump sodium out of the cell and potassium into the cell. 
B)  In order to reduce cell volume, the cell decreases the activity of the sodium-potassium pump. 
C)  Because the sodium-potassium pump works on the principle of diffusion, it does not require energy. 
D)  Increased activity of the sodium-potassium pump causes an increase in cell volume. 
E)  In order to maintain a certain cell volume, the sodium-potassium pump exchanges three sodium ions for two potassium ions.

Question 2

Using the accompanying figure, identify the organelles of a eukaryotic cell.
-Label E 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

Which one of the following structures is part of the internal cytoskeleton that supports a cell?

Accepted Answer

A)  rough and smooth endoplasmic reticulum 
B)  flagella and cilia 
C)  microtubules and microfilaments 
D)  lysosomes and peroxisomes 
E)  ribosomes and rough endoplasmic reticulum 
A)  rough and smooth endoplasmic reticulum 
B)  flagella and cilia 
C)  microtubules and microfilaments 
D)  lysosomes and peroxisomes 
E)  ribosomes and rough endoplasmic reticulum

Question 4

Match each of the following descriptions to the appropriate term.
-organelle that contains enzymes that break down hydrogen peroxide

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

Which one of the following is TRUE regarding the sodium-potassium pump?

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

Which one of the following structures is part of the internal cytoskeleton that supports a cell?

Match each of the following descriptions to the appropriate term. -organelle that contains enzymes that break down hydrogen peroxide

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

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Exam 3: Structure and Function of Cells

Which one of the following is TRUE regarding the sodium-potassium pump?

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

Which one of the following structures is part of the internal cytoskeleton that supports a cell?

Match each of the following descriptions to the appropriate term. -organelle that contains enzymes that break down hydrogen peroxide

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