Question 1

Biologists classify cells into two broad categories- animals and plants.

Accepted Answer

A) True 
 B)False

Question 2

What do the SER and RER have in common?

Accepted Answer

A)  the presence of ribosomes 
B)  the formation of transport vesicles 
C)  the synthesis of phospholipids 
D)  the synthesis of proteins 
E)  the processing and modification of proteins 
A)  the presence of ribosomes 
B)  the formation of transport vesicles 
C)  the synthesis of phospholipids 
D)  the synthesis of proteins 
E)  the processing and modification of proteins

Question 3

If a cube has sides of 3 nm,what are the surface area and the volume of the cube?

Accepted Answer

A)  24 nm2, 8 nm3 
B)  38 nm2, 16 nm3 
C)  54 nm2, 27 nm3 
D)  64 nm2, 24 nm3 
E)  18 nm2, 6 nm3 
A)  24 nm2, 8 nm3 
B)  38 nm2, 16 nm3 
C)  54 nm2, 27 nm3 
D)  64 nm2, 24 nm3 
E)  18 nm2, 6 nm3

Question 4

Which of the following is not a function of the plasma membrane?

Accepted Answer

A)  determines which substances enter and leave the cell 
B)  serves as a boundary between the cell and its environment 
C)  contains receptor sites which determine how the cell interacts with its environment 
D)  contains the genetic information 
E)  marks the cell as belonging to a particular individual 
A)  determines which substances enter and leave the cell 
B)  serves as a boundary between the cell and its environment 
C)  contains receptor sites which determine how the cell interacts with its environment 
D)  contains the genetic information 
E)  marks the cell as belonging to a particular individual

Question 5

What is the maximum number of ATP molecules produced during aerobic respiration?

Accepted Answer

A)  38 
B)  36 
C)  32 
D)  2 
E)  4 
A)  38 
B)  36 
C)  32 
D)  2 
E)  4

Question 6

The nucleus of a cell in your thigh muscle contains the same genes as the nucleus of a cell in your brain.

Accepted Answer

A) True 
 B)False

Question 7

The grainy-looking substance inside the nucleus is composed of

Accepted Answer

A)  phospholipids. 
B)  DNA and proteins. 
C)  nucleoplasm. 
D)  ribosomes. 
E)  mitochondria. 
A)  phospholipids. 
B)  DNA and proteins. 
C)  nucleoplasm. 
D)  ribosomes. 
E)  mitochondria.

Question 8

Archaea are considered the evolutionary precursors to eukaryotic cells.

Accepted Answer

A) True 
 B)False

Question 9

Which type of junctions must there be between cells to form a barrier?

Accepted Answer

A)  adhesion junctions 
B)  gap junctions 
C)  tight junctions 
D)  channel junctions 
E)  free junctions 
A)  adhesion junctions 
B)  gap junctions 
C)  tight junctions 
D)  channel junctions 
E)  free junctions

Question 10

Often when a person is admitted to the hospital,an intravenous solution of normal saline is begun.Since this does not harm the patient,what is the tonicity of normal saline compared to your blood?

Accepted Answer

A)  hypertonic 
B)  isotonic 
C)  hypotonic 
D)  pretonic 
E)  osmotonic 
A)  hypertonic 
B)  isotonic 
C)  hypotonic 
D)  pretonic 
E)  osmotonic

Question 11

In a metabolic pathway,substrate Z is broken down to form products Y and X.Y is further broken down into products V and W.How many enzymes are required for this metabolic pathway?

Accepted Answer

A)  one 
B)  two 
C)  three 
D)  four 
E)  five 
A)  one 
B)  two 
C)  three 
D)  four 
E)  five

Question 12

List,in order,the stages of aerobic cellular respiration.

Accepted Answer

Cellular respiration begins with glycoly

Question 13

If the mitochondrion is the result of endosymbiosis,what membrane of the mitochondrion represents the engulfing vesicle?

Accepted Answer

A)  the outer mitochondrial membrane 
B)  vacuole 
C)  cristae 
D)  matrix 
E)  grana 
A)  the outer mitochondrial membrane 
B)  vacuole 
C)  cristae 
D)  matrix 
E)  grana

Question 14

In the fluid-mosaic model of the plasma membrane,the phospholipid molecules are oriented so that the ________ heads are facing the outside environment and the ________ tails are facing the interior of the membrane.

Accepted Answer

A)  hydrophobic, hydrophilic 
B)  hydrophilic, hydrophobic 
C)  autotrophic, heterotrophic 
D)  heterotrophic, autotrophic 
E)  ectothermic, endothermic 
A)  hydrophobic, hydrophilic 
B)  hydrophilic, hydrophobic 
C)  autotrophic, heterotrophic 
D)  heterotrophic, autotrophic 
E)  ectothermic, endothermic

Question 15

If a cell lacked ribosomes,it would not be able to

Accepted Answer

A)  form a spindle apparatus. 
B)  synthesize proteins. 
C)  respire oxidatively. 
D)  break down fats. 
E)  produce ATP. 
A)  form a spindle apparatus. 
B)  synthesize proteins. 
C)  respire oxidatively. 
D)  break down fats. 
E)  produce ATP.

Question 16

Which model currently describes the structure of the plasma membrane?

Accepted Answer

A)  endosymbiont model 
B)  fluid-mosaic model 
C)  plasmagel-plasmasol model 
D)  lock and key model 
E)  induced-fit model 
A)  endosymbiont model 
B)  fluid-mosaic model 
C)  plasmagel-plasmasol model 
D)  lock and key model 
E)  induced-fit model

Question 17

If you could remove all the phosphate in the cell,what would happen to the ATP cycle?

Accepted Answer

A)  It would stop when all the ATP had been converted into ADP. 
B)  It would stop when all the ADP had been converted into ATP. 
C)  It would cycle faster because the lack of phosphate would drive the cycle. 
D)  It would cycle faster because of the buildup of ATP. 
E)  It would not affect the ATP cycle. 
A)  It would stop when all the ATP had been converted into ADP. 
B)  It would stop when all the ADP had been converted into ATP. 
C)  It would cycle faster because the lack of phosphate would drive the cycle. 
D)  It would cycle faster because of the buildup of ATP. 
E)  It would not affect the ATP cycle.

Question 18

All of the following are possible origins of cell organelles in eukaryotes EXCEPT

Accepted Answer

A)  invagination of the plasma membrane to form endoplasmic reticulum. 
B)  incorporation of engulfed heterotrophic bacteria to form mitochondria. 
C)  incorporation of engulfed autotrophic cyanobacteria to form chloroplasts. 
D)  a symbiotic relationship between a host cell and a prokaryote that was taken up but not destroyed. 
E)  groups of prokaryotic cells begin to live in a small group sharing products of metabolism. 
A)  invagination of the plasma membrane to form endoplasmic reticulum. 
B)  incorporation of engulfed heterotrophic bacteria to form mitochondria. 
C)  incorporation of engulfed autotrophic cyanobacteria to form chloroplasts. 
D)  a symbiotic relationship between a host cell and a prokaryote that was taken up but not destroyed. 
E)  groups of prokaryotic cells begin to live in a small group sharing products of metabolism.

Question 19

A short chain of sugar attached to a protein molecule on the plasma membrane is called

Accepted Answer

A)  a protomembrane. 
B)  a protosugar. 
C)  a glycocalyx. 
D)  a glycolipid. 
E)  a glycoprotein. 
A)  a protomembrane. 
B)  a protosugar. 
C)  a glycocalyx. 
D)  a glycolipid. 
E)  a glycoprotein.

Question 20

In developing embryos such as a chicken,what restores the amount of surface area needed for exchange requirements?

Accepted Answer

A)  respiration 
B)  catabolism 
C)  anabolism 
D)  cell division 
E)  assimilation 
A)  respiration 
B)  catabolism 
C)  anabolism 
D)  cell division 
E)  assimilation

Exam 3: Cell Structure and Function

Biologists classify cells into two broad categories- animals and plants.

What do the SER and RER have in common?

If a cube has sides of 3 nm,what are the surface area and the volume of the cube?

Which of the following is not a function of the plasma membrane?

What is the maximum number of ATP molecules produced during aerobic respiration?

The nucleus of a cell in your thigh muscle contains the same genes as the nucleus of a cell in your brain.

The grainy-looking substance inside the nucleus is composed of

Archaea are considered the evolutionary precursors to eukaryotic cells.

Which type of junctions must there be between cells to form a barrier?

Often when a person is admitted to the hospital,an intravenous solution of normal saline is begun.Since this does not harm the patient,what is the tonicity of normal saline compared to your blood?

In a metabolic pathway,substrate Z is broken down to form products Y and X.Y is further broken down into products V and W.How many enzymes are required for this metabolic pathway?

List,in order,the stages of aerobic cellular respiration.

If the mitochondrion is the result of endosymbiosis,what membrane of the mitochondrion represents the engulfing vesicle?

In the fluid-mosaic model of the plasma membrane,the phospholipid molecules are oriented so that the ________ heads are facing the outside environment and the ________ tails are facing the interior of the membrane.

If a cell lacked ribosomes,it would not be able to

Which model currently describes the structure of the plasma membrane?

If you could remove all the phosphate in the cell,what would happen to the ATP cycle?

All of the following are possible origins of cell organelles in eukaryotes EXCEPT

A short chain of sugar attached to a protein molecule on the plasma membrane is called

In developing embryos such as a chicken,what restores the amount of surface area needed for exchange requirements?

Exploring Life and Science

Chemistry of Life

Organization and Regulation of Body Systems

Cardiovascular System: Heart and Blood Vessels

Cardiovascular System: Blood

The Lymphatic and Immune Systems

Infectious Diseases

Digestive System and Nutrition

Respiratory System

Urinary System

Skeletal System

Muscular System

Nervous System

Senses

Endocrine System

Reproductive System

Development and Aging

Patterns of Chromosome Inheritance

Cancer

Patterns of Genetic Inheritance

Dna Biology and Technology

Human Evolution

Ecology and the Nature of Ecosystems

Human Interactions With the Biosphere

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In the fluid-mosaic model of the plasma membrane,the phospholipid molecules are oriented so that the heads are facing the outside environment and the tails are facing the interior of the membrane.