Question 1

Mitochondria ________.

Accepted Answer

A)  are single-membrane structures involved in the breakdown of ATP 
B)  synthesize proteins for use outside the cell 
C)  contain digestive enzymes called acid hydrolyses 
D)  contain some of the DNA and RNA code necessary for their own function 
A)  are single-membrane structures involved in the breakdown of ATP 
B)  synthesize proteins for use outside the cell 
C)  contain digestive enzymes called acid hydrolyses 
D)  contain some of the DNA and RNA code necessary for their own function

Question 2

Match the following:
-The vast majority of the cell's genetic material is housed here.

Accepted Answer

A) Microtubules 
B) Nucleoli 
C) Ribosomes 
D) Endoplasmic reticulum 
E) Nucleus 
A) Microtubules 
B) Nucleoli 
C) Ribosomes 
D) Endoplasmic reticulum 
E) Nucleus

Question 3

Figure 3.2
Using Figure 3.2, match the following:
-Glycocalyx.

Accepted Answer

A) A 
B) E 
C) C 
D) D 
E) B 
A) A 
B) E 
C) C 
D) D 
E) B

Question 4

Describe two important functions of the Golgi apparatus.

Accepted Answer

To modify,

Question 5

Figure 3.1
Using Figure 3.1, match the following:
-Replicate for cell division.

Accepted Answer

A) C 
B) E 
C) D 
D) A 
E) B 
A) C 
B) E 
C) D 
D) A 
E) B

Question 6

In certain kinds of muscle cells,calcium ions are stored in ________.

Accepted Answer

A)  the cytoplasm 
B)  both smooth and rough ER 
C)  the smooth ER 
D)  the rough ER 
A)  the cytoplasm 
B)  both smooth and rough ER 
C)  the smooth ER 
D)  the rough ER

Question 7

Which of the following is FALSE regarding the membrane potential?

Accepted Answer

A)  The resting membrane potential is determined mainly by the concentration gradients and differential permeability of the plasma membrane to K+ and Na+ions. 
B)  The resting membrane potential is maintained solely by passive transport processes. 
C)  The resting membrane potential occurs due to active transport of ions across the membrane due to the sodium-potassium pump. 
D)  In their resting state, all body cells exhibit a resting membrane potential. 
A)  The resting membrane potential is determined mainly by the concentration gradients and differential permeability of the plasma membrane to K+ and Na+ions. 
B)  The resting membrane potential is maintained solely by passive transport processes. 
C)  The resting membrane potential occurs due to active transport of ions across the membrane due to the sodium-potassium pump. 
D)  In their resting state, all body cells exhibit a resting membrane potential.

Question 8

Lipid rafts,found in the cell outer membrane surface,are concentrating platforms for certain receptor molecules or for protein molecules needed for cell signaling.

Accepted Answer

A) True 
 B)False

Question 9

Why can we say that cells are protein factories?

Accepted Answer

Most of the metabolic machiner

Question 10

List possible causes of aging.

Accepted Answer

1.chemical insults and free radical form

Question 11

Interstitial fluid represents one type of extracellular material.

Accepted Answer

A) True 
 B)False

Question 12

Match the following:
-Play a critical role in forming spindle fibers for cell division,organize and move organelles as well as giving shape to the cell.

Accepted Answer

A) Microtubules 
B) Nucleoli 
C) Ribosomes 
D) Endoplasmic reticulum 
E) Nucleus 
A) Microtubules 
B) Nucleoli 
C) Ribosomes 
D) Endoplasmic reticulum 
E) Nucleus

Question 13

If cells are placed in a hypertonic solution containing a solute to which the membrane is impermeable,what could happen?

Accepted Answer

A)  The cells will lose water and shrink. 
B)  The cells will show no change due to diffusion of both solute and solvent. 
C)  The cells will swell and ultimately burst. 
D)  The cells will shrink at first, but will later reach equilibrium with the surrounding solution and return to their original condition. 
A)  The cells will lose water and shrink. 
B)  The cells will show no change due to diffusion of both solute and solvent. 
C)  The cells will swell and ultimately burst. 
D)  The cells will shrink at first, but will later reach equilibrium with the surrounding solution and return to their original condition.

Question 14

Match the following:
-Attaches the correct amino acid to its transfer RNA.

Accepted Answer

A) Transfer RNA 
B) Messenger RNA 
C) Ribosomal RNA 
D) ATP 
E) Synthetase enzymes 
A) Transfer RNA 
B) Messenger RNA 
C) Ribosomal RNA 
D) ATP 
E) Synthetase enzymes

Question 15

The electron microscope has revealed that one of the components within the cell consists of pinwheel array of 9 triplets of microtubules arranged to form a hollow tube.This structure is a ________.

Accepted Answer

A)  centrosome 
B)  ribosome 
C)  centriole 
D)  chromosome 
A)  centrosome 
B)  ribosome 
C)  centriole 
D)  chromosome

Question 16

Microtubules are hollow tubes made of subunits of the protein tubulin.

Accepted Answer

A) True 
 B)False

Question 17

Figure 3.2
Using Figure 3.2, match the following:
-Unique glycoproteins and glycolipids involved in cell recognition.

Accepted Answer

A) A 
B) E 
C) C 
D) D 
E) B 
A) A 
B) E 
C) C 
D) D 
E) B

Question 18

A cell engulfing a relatively large particle will likely utilize ________.

Accepted Answer

A)  phagocytosis 
B)  pinocytosis 
C)  receptor-mediated endocytosis 
D)  exocytosis 
A)  phagocytosis 
B)  pinocytosis 
C)  receptor-mediated endocytosis 
D)  exocytosis

Question 19

In all living cells hydrostatic and osmotic pressures exist.Define these pressures and explain how they are used in the concept of tonicity of the cell.

Accepted Answer

Hydrostatic pressure is the pressure of

Question 20

Some hormones enter cells via ________.

Accepted Answer

A)  exocytosis 
B)  receptor-mediated endocytosis 
C)  primary active transport 
D)  pinocytosis 
A)  exocytosis 
B)  receptor-mediated endocytosis 
C)  primary active transport 
D)  pinocytosis

Exam 3: Cells: the Living Units

Mitochondria ________.

Match the following: -The vast majority of the cell's genetic material is housed here.

Figure 3.2 Using Figure 3.2, match the following: -Glycocalyx.

Describe two important functions of the Golgi apparatus.

Figure 3.1 Using Figure 3.1, match the following: -Replicate for cell division.

In certain kinds of muscle cells,calcium ions are stored in ________.

Which of the following is FALSE regarding the membrane potential?

Lipid rafts,found in the cell outer membrane surface,are concentrating platforms for certain receptor molecules or for protein molecules needed for cell signaling.

Why can we say that cells are protein factories?

List possible causes of aging.

Interstitial fluid represents one type of extracellular material.

Match the following: -Play a critical role in forming spindle fibers for cell division,organize and move organelles as well as giving shape to the cell.

If cells are placed in a hypertonic solution containing a solute to which the membrane is impermeable,what could happen?

Match the following: -Attaches the correct amino acid to its transfer RNA.

The electron microscope has revealed that one of the components within the cell consists of pinwheel array of 9 triplets of microtubules arranged to form a hollow tube.This structure is a ________.

Microtubules are hollow tubes made of subunits of the protein tubulin.

Figure 3.2 Using Figure 3.2, match the following: -Unique glycoproteins and glycolipids involved in cell recognition.

A cell engulfing a relatively large particle will likely utilize ________.

In all living cells hydrostatic and osmotic pressures exist.Define these pressures and explain how they are used in the concept of tonicity of the cell.

Some hormones enter cells via ________.

The Human Body: an Orientation

Chemistry Comes Alive

Tissue: the Living Fabric

The Integumentary System

Bones and Skeletal Tissue

The Skeleton

Joints

Muscles and Muscle Tissue

The Muscular System

Fundamentals of the Nervous System and Nervous Tissue

The Central Nervous System

The Peripheral Nervous System and Reflex Activity

The Autonomic Nervous System

The Special Senses

The Endocrine System

Blood

The Cardiovascular System: the Heart

The Cardiovascular System: Blood Vessels

The Lymphatic System and Lymphoid Organs and Tissues

The Immune System: Innate and Adaptive Body Defenses

The Respiratory System

The Digestive System

Nutrition,metabolism,and Body Temperature Regulation

The Urinary System

Fluid,electrolyte,and Acid-Base Balance

The Reproductive System

Pregnancy and Human Development

Heredity

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