Question 1

Which of the following lipids makes up most of a plasma membrane?

Accepted Answer

A)  phospholipids 
B)  cholesterol 
C)  triglycerides 
D)  steroids 
E)  more than one of these 
A)  phospholipids 
B)  cholesterol 
C)  triglycerides 
D)  steroids 
E)  more than one of these A

Question 2

A hypothetical "microbullet" shot through a phospholipids bilayer will pass the component in which order?

Accepted Answer

A)  tail >>> tail >>> head >>> head 
B)  head >>> tail >>> tail >>> head 
C)  head >>> tail >>> head >>> tail 
D)  head >>> head >>> tail >>> tail 
E)  tail >>> head >>> tail >>> head 
A)  tail >>> tail >>> head >>> head 
B)  head >>> tail >>> tail >>> head 
C)  head >>> tail >>> head >>> tail 
D)  head >>> head >>> tail >>> tail 
E)  tail >>> head >>> tail >>> head B

Question 3

Peptic ulcers are most closely related to what type of cell junctions?

Accepted Answer

A)  tight junctions 
B)  strong adhering junctions 
C)  gap junctions 
D)  plasmodesmata 
E)  both strong adhering junctions and gap junctions 
A)  tight junctions 
B)  strong adhering junctions 
C)  gap junctions 
D)  plasmodesmata 
E)  both strong adhering junctions and gap junctions A

Question 4

If a plasma membrane were compared to a sandwich, ____ would be considered the filling.

Accepted Answer

A)  cholesterol 
B)  protein 
C)  hydrophilic heads 
D)  hydrophobic tails 
E)  carbohydrates 
A)  cholesterol 
B)  protein 
C)  hydrophilic heads 
D)  hydrophobic tails 
E)  carbohydrates

Question 5

Plasmodesmata are most similar to

Accepted Answer

A)  gap junctions in animal cells. 
B)  tight junctions in bacteria. 
C)  basement membranes in animal cells. 
D)  adhering junctions in heart muscle. 
E)  both tight junctions in bacteria and adhering junctions in heart muscle. 
A)  gap junctions in animal cells. 
B)  tight junctions in bacteria. 
C)  basement membranes in animal cells. 
D)  adhering junctions in heart muscle. 
E)  both tight junctions in bacteria and adhering junctions in heart muscle.

Question 6

Some cells contain membrane-bound compartments called

Accepted Answer

A)  organs. 
B)  organites. 
C)  organelles. 
D)  organella. 
E)  organellum. 
A)  organs. 
B)  organites. 
C)  organelles. 
D)  organella. 
E)  organellum.

Question 7

Eukaryotic cells have their DNA enclosed in the

Accepted Answer

A)  plasma membrane. 
B)  nucleus. 
C)  nucleoid. 
D)  nucleolus. 
E)  nucleotide. 
A)  plasma membrane. 
B)  nucleus. 
C)  nucleoid. 
D)  nucleolus. 
E)  nucleotide.

Question 8

Match between columns
                        Premises: Production of ATP occurs in this organelle.
Aerobic respiration occurs in and on this organelle.
This organelle is involved in lipid production and protein transport.
The packaging of secretory proteins occurs in association with this structure.
This organelle is the site of RNA synthesis.
This organelle is studded with ribosomes.
RNA carries out the genetic code translation process in association with ribosomes on this organelle.
The breakdown of cellular debris occurs in this organelle
The cellular digestion and disposal of biological molecules occur inside this organelle.

Accepted Answer

The Answer of rough endoplasmic reticulum . and rough endoplasmic is...

Question 9

Selecting the Exception The following structures are found in all eukaryotic cells EXCEPT

Accepted Answer

A)  cell walls. 
B)  the nucleus. 
C)  plasma membranes. 
D)  Golgi bodies. 
E)  the endoplasmic reticulum. 
A)  cell walls. 
B)  the nucleus. 
C)  plasma membranes. 
D)  Golgi bodies. 
E)  the endoplasmic reticulum.

Question 10

____ are responsible for separating chromosomes during cell division.

Accepted Answer

A)  Microfilaments. 
B)  Intermediate filaments. 
C)  Actin filaments 
D)  Microtubules 
E)  Microfibers 
A)  Microfilaments. 
B)  Intermediate filaments. 
C)  Actin filaments 
D)  Microtubules 
E)  Microfibers

Question 11

If the size of a cell doubles what will be the surface area to volume ratio?

Accepted Answer

A)  8 to 4 
B)  4 to 8 
C)  16 to 4 
D)  16 to 8 
E)  64 to 16 
A)  8 to 4 
B)  4 to 8 
C)  16 to 4 
D)  16 to 8 
E)  64 to 16

Question 12

Which of the following cell organelles is responsible for the breakdown of alcohol and other toxins?

Accepted Answer

A)  Golgi body 
B)  peroxisome 
C)  lysosome 
D)  ribosome 
E)  mitochondrion 
A)  Golgi body 
B)  peroxisome 
C)  lysosome 
D)  ribosome 
E)  mitochondrion

Question 13

In cyanobacteria, where are the molecules that carry out photosynthesis found?

Accepted Answer

A)  in the center of the cytoplasm 
B)  in the ribosome 
C)  in the DNA 
D)  in the folds of the plasma membrane 
E)  in the nucleoid space 
A)  in the center of the cytoplasm 
B)  in the ribosome 
C)  in the DNA 
D)  in the folds of the plasma membrane 
E)  in the nucleoid space

Question 14

A prokaryote's cell shape is reinforced by

Accepted Answer

A)  phospholipids. 
B)  DNA. 
C)  protein filaments. 
D)  transport proteins. 
E)  ribosomes. 
A)  phospholipids. 
B)  DNA. 
C)  protein filaments. 
D)  transport proteins. 
E)  ribosomes.

Question 15

Which of the following statements is TRUE?

Accepted Answer

A)  When lipids and water are mixed, water molecules isolate themselves into droplets. 
B)  When lipids and water are mixed, lipids dissolve and enter into a solution. 
C)  Lipids are classified as nonpolar substances and will not mix with water. 
D)  Polar substances are able to pass through a plasma membrane more readily than nonpolar substances. 
E)  All portions of a phospholipid molecule found in a membrane are classified as nonpolar. 
A)  When lipids and water are mixed, water molecules isolate themselves into droplets. 
B)  When lipids and water are mixed, lipids dissolve and enter into a solution. 
C)  Lipids are classified as nonpolar substances and will not mix with water. 
D)  Polar substances are able to pass through a plasma membrane more readily than nonpolar substances. 
E)  All portions of a phospholipid molecule found in a membrane are classified as nonpolar.

Question 16

Which of the following organelles is thought to have evolved from a bacterium?

Accepted Answer

A)  nuclei 
B)  Golgi bodies 
C)  chloroplasts 
D)  mitochondria 
E)  more than one of these 
A)  nuclei 
B)  Golgi bodies 
C)  chloroplasts 
D)  mitochondria 
E)  more than one of these

Question 17

The rough endoplasmic reticulum is so called because ____ stud the surface of that organelle.

Accepted Answer

A)  carbohydrates 
B)  ribosomes 
C)  Golgi bodies 
D)  proteins 
E)  lysosomes 
A)  carbohydrates 
B)  ribosomes 
C)  Golgi bodies 
D)  proteins 
E)  lysosomes

Question 18

Match between columns
                        Premises: pilus
cytoplasm
capsule
DNA
cell wall
plasma membrane
flagellum

Accepted Answer

The Answer of choice A and choice E and choice is...

Question 19

Selecting the Exception Four of the five statements listed below are portions of a well-known theory. Select the EXCEPTION.

Accepted Answer

A)  Cells are the structural and functional components of living things. 
B)  Cells arise from preexisting cells. 
C)  All organisms are composed of cells. 
D)  Cells are the basic living unit of organization of living things. 
E)  All cells have a nucleus. 
A)  Cells are the structural and functional components of living things. 
B)  Cells arise from preexisting cells. 
C)  All organisms are composed of cells. 
D)  Cells are the basic living unit of organization of living things. 
E)  All cells have a nucleus.

Question 20

An organelle that breaks down amino acids, fatty acids, and toxic substances is the

Accepted Answer

A)  peroxisome 
B)  Golgi body 
C)  mitochondrion 
D)  lysosome 
E)  smooth endoplasmic reticulum 
A)  peroxisome 
B)  Golgi body 
C)  mitochondrion 
D)  lysosome 
E)  smooth endoplasmic reticulum

Exam 3: Cell Structure

Which of the following lipids makes up most of a plasma membrane?

A hypothetical "microbullet" shot through a phospholipids bilayer will pass the component in which order?

Peptic ulcers are most closely related to what type of cell junctions?

If a plasma membrane were compared to a sandwich, ____ would be considered the filling.

Plasmodesmata are most similar to

Some cells contain membrane-bound compartments called

Eukaryotic cells have their DNA enclosed in the

Selecting the Exception The following structures are found in all eukaryotic cells EXCEPT

____ are responsible for separating chromosomes during cell division.

If the size of a cell doubles what will be the surface area to volume ratio?

Which of the following cell organelles is responsible for the breakdown of alcohol and other toxins?

In cyanobacteria, where are the molecules that carry out photosynthesis found?

A prokaryote's cell shape is reinforced by

Which of the following statements is TRUE?

Which of the following organelles is thought to have evolved from a bacterium?

The rough endoplasmic reticulum is so called because ____ stud the surface of that organelle.

Selecting the Exception Four of the five statements listed below are portions of a well-known theory. Select the EXCEPTION.

An organelle that breaks down amino acids, fatty acids, and toxic substances is the

Invitation to Biology

Molecules of Life

Energy and Metabolism

Capturing and Releasing Energy

Dna Structure and Function

Gene Expression and Control

How Cells Reproduce

Patterns of Inheritance

Biotechnology

Evidence of Evolution

Processes of Evolution

Early Life Forms and the Viruses

Plants and Fungi

Animal Evolution

Population Ecology

Communities and Ecosystems

The Biosphere and Human Effects

Animal Tissues and Organs

How Animals Move

Circulation and Respiration

Immunity

Digestion and Excretion

Neural Control and the Senses

Endocrine Control

Reproduction and Development

Plant Form and Function

Plant Reproduction and Development

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