Question 1

Which of the following structures allows a bacterium to propel itself through its environment?

Accepted Answer

A)  microfilaments 
B)  intermediate filaments 
C)  microvillus 
D)  flagellum 
E)  microtubule 
A)  microfilaments 
B)  intermediate filaments 
C)  microvillus 
D)  flagellum 
E)  microtubule

Question 2

What is the function of ribosomes?

Accepted Answer

A)  plasma membrane stabilization 
B)  receiving raw materials from the environment 
C)  polypeptide assembly 
D)  increasing tonicity 
E)  directing the activity of DNA 
A)  plasma membrane stabilization 
B)  receiving raw materials from the environment 
C)  polypeptide assembly 
D)  increasing tonicity 
E)  directing the activity of DNA

Question 3

No prokaryotic cells have

Accepted Answer

A)  ribosomes. 
B)  a nucleus. 
C)  cytoplasm. 
D)  a plasma membrane. 
E)  cell walls. 
A)  ribosomes. 
B)  a nucleus. 
C)  cytoplasm. 
D)  a plasma membrane. 
E)  cell walls.

Question 4

Plasma membrane proteins might be involved in

Accepted Answer

A)  cell-to-cell recognition. 
B)  signal recognition. 
C)  transport of nutrients. 
D)  metabolic activities. 
E)  all of these. 
A)  cell-to-cell recognition. 
B)  signal recognition. 
C)  transport of nutrients. 
D)  metabolic activities. 
E)  all of these.

Question 5

A basement membrane

Accepted Answer

A)  is a cell membrane. 
B)  is a specialized lipid bilayer. 
C)  forms on the surface of plant cells. 
D)  supports and organizes animal cell membranes. 
E)  is a sheet of non-fibrous material. 
A)  is a cell membrane. 
B)  is a specialized lipid bilayer. 
C)  forms on the surface of plant cells. 
D)  supports and organizes animal cell membranes. 
E)  is a sheet of non-fibrous material.

Question 6

Which organelle makes most of the lipids that form the cell's membranes?

Accepted Answer

A)  rough ER 
B)  smooth ER 
C)  Golgi body 
D)  peroxisomes 
E)  mitochondria 
A)  rough ER 
B)  smooth ER 
C)  Golgi body 
D)  peroxisomes 
E)  mitochondria

Question 7

Which of the following is a biofilm?

Accepted Answer

A)  dental plaque 
B)  a bacterial capsule 
C)  elongated pili 
D)  an oil slick 
E)  none of these are examples of biofilms 
A)  dental plaque 
B)  a bacterial capsule 
C)  elongated pili 
D)  an oil slick 
E)  none of these are examples of biofilms

Question 8

What limits the size of a cell?

Accepted Answer

A)  lack of building materials 
B)  the size of the organism 
C)  the relationship between the volume of the cell and its surface area 
D)  the job it does 
E)  the materials it has to exchange 
A)  lack of building materials 
B)  the size of the organism 
C)  the relationship between the volume of the cell and its surface area 
D)  the job it does 
E)  the materials it has to exchange

Question 9

____ are involved in transfer of genetic information from one bacterial cell to another.

Accepted Answer

A)  Flagella 
B)  Cilia 
C)  Pili 
D)  Ribosomes 
E)  Plasmids 
A)  Flagella 
B)  Cilia 
C)  Pili 
D)  Ribosomes 
E)  Plasmids

Question 10

Which of the following contain enzymes and are the main organelles of waste disposal?

Accepted Answer

A)  Golgi bodies 
B)  mitochondria 
C)  lysosomes 
D)  ribosomes 
E)  endoplasmic reticulum 
A)  Golgi bodies 
B)  mitochondria 
C)  lysosomes 
D)  ribosomes 
E)  endoplasmic reticulum

Question 11

Structural features which contain proteins that help to control the shape of cells are

Accepted Answer

A)  plastids. 
B)  vacuoles. 
C)  microtubules. 
D)  nucleoli. 
E)  microfilaments. 
A)  plastids. 
B)  vacuoles. 
C)  microtubules. 
D)  nucleoli. 
E)  microfilaments.

Question 12

Which of the following organelles is correctly matched with its function?

Accepted Answer

A)  vacuoles: energy production 
B)  rough ER: protein synthesis 
C)  Golgi bodies: lipid formation 
D)  mitochondria: photosynthesis 
E)  smooth ER: waste removal 
A)  vacuoles: energy production 
B)  rough ER: protein synthesis 
C)  Golgi bodies: lipid formation 
D)  mitochondria: photosynthesis 
E)  smooth ER: waste removal

Question 13

Extracellular matrix is made up of

Accepted Answer

A)  polysaccharides and fibrous proteins. 
B)  fibrous proteins and lipopolysaccharides. 
C)  polysaccharides and lipopolysaccharides. 
D)  fibrous proteins and complex lipids. 
E)  polysaccharides and complex lipids. 
A)  polysaccharides and fibrous proteins. 
B)  fibrous proteins and lipopolysaccharides. 
C)  polysaccharides and lipopolysaccharides. 
D)  fibrous proteins and complex lipids. 
E)  polysaccharides and complex lipids.

Question 14

A transport protein is analogous to a

Accepted Answer

A)  wall partition. 
B)  subway train. 
C)  light switch. 
D)  voice identification device. 
E)  television receiver. 
A)  wall partition. 
B)  subway train. 
C)  light switch. 
D)  voice identification device. 
E)  television receiver.

Question 15

What cellular structure assembles amino acids into polypeptides?

Accepted Answer

A)  Golgi bodies 
B)  mitochondria 
C)  ribosomes 
D)  centrioles 
E)  lysosomes 
A)  Golgi bodies 
B)  mitochondria 
C)  ribosomes 
D)  centrioles 
E)  lysosomes

Question 16

Which of the following are primarily cellular sites for the recapture of energy from organic compounds?

Accepted Answer

A)  Golgi bodies 
B)  mitochondria 
C)  lysosomes 
D)  ribosomes 
E)  endoplasmic reticulum 
A)  Golgi bodies 
B)  mitochondria 
C)  lysosomes 
D)  ribosomes 
E)  endoplasmic reticulum

Question 17

Match between columns
                        Premises: organelles of photosynthesis
assembles amino acid into polypeptide chains
store metabolic substances
construction sites where subunits of ribosomes are built from RNA and proteins
contain enzymes for intracellular digestion
enzyme filled vesicle that breaks down amino acids, fatty acids, and toxic substances
encode hereditary molecules
break down organic compounds in the ATP-forming reaction of aerobic respiration
receive and process new substances that arrive in vesicles from ER
transcripts that are converted into polypeptides

Accepted Answer

The Answer of mitochondria and nucleoli and chloroplasts and lysosomes is...

Question 18

An organelle that finishes a protein and packages it for export is a

Accepted Answer

A)  lysosome 
B)  Golgi body 
C)  peroxisome 
D)  smooth ER 
E)  rough ER 
A)  lysosome 
B)  Golgi body 
C)  peroxisome 
D)  smooth ER 
E)  rough ER

Question 19

Elephants are large animals because they

Accepted Answer

A)  have bigger cells. 
B)  possess expandable cells. 
C)  are made of a greater number of cells. 
D)  have bigger cells and are made of a greater number of cells. 
E)  have bigger cells that are expandable and of greater number. 
A)  have bigger cells. 
B)  possess expandable cells. 
C)  are made of a greater number of cells. 
D)  have bigger cells and are made of a greater number of cells. 
E)  have bigger cells that are expandable and of greater number.

Question 20

Which of the following is NOT an example of an extracellular matrix?

Accepted Answer

A)  cuticles of plants 
B)  cuticles of crabs 
C)  cell walls 
D)  cell membranes 
E)  basement membranes 
A)  cuticles of plants 
B)  cuticles of crabs 
C)  cell walls 
D)  cell membranes 
E)  basement membranes

Exam 3: Cell Structure

Which of the following structures allows a bacterium to propel itself through its environment?

What is the function of ribosomes?

No prokaryotic cells have

Plasma membrane proteins might be involved in

A basement membrane

Which organelle makes most of the lipids that form the cell's membranes?

Which of the following is a biofilm?

What limits the size of a cell?

____ are involved in transfer of genetic information from one bacterial cell to another.

Which of the following contain enzymes and are the main organelles of waste disposal?

Structural features which contain proteins that help to control the shape of cells are

Which of the following organelles is correctly matched with its function?

Extracellular matrix is made up of

A transport protein is analogous to a

What cellular structure assembles amino acids into polypeptides?

Which of the following are primarily cellular sites for the recapture of energy from organic compounds?

An organelle that finishes a protein and packages it for export is a

Elephants are large animals because they

Which of the following is NOT an example of an extracellular matrix?

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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