Question 1

Why are adhering junctions common in tissues subject to constant abrasion or stretching,such as skin?

Accepted Answer

A) These cells need to communicate by allowing cytoplasm to flow between adjacent cells. 
B) The cells in these tissues require strong cell-to-cell junctions to hold them together. 
C) Adhering junctions prevent harsh enzymes from flowing between adjacent cells. 
D) These tissues do not have basement membranes. 
E) Adhering junctions allow production of a protective cuticle. 
A) These cells need to communicate by allowing cytoplasm to flow between adjacent cells. 
B) The cells in these tissues require strong cell-to-cell junctions to hold them together. 
C) Adhering junctions prevent harsh enzymes from flowing between adjacent cells. 
D) These tissues do not have basement membranes. 
E) Adhering junctions allow production of a protective cuticle. B

Question 2

The following are organelles found in animal cells.Match the organelle with the appropriate description.An answer may be used more than once.
-This organelle is involved in lipid synthesis.

Accepted Answer

A) nucleus 
B) mitochondrion 
C) lysosome 
D) Golgi body 
E) ribosome
F)rough endoplasmic reticulum
G)smooth endoplasmic reticulum 
A) nucleus 
B) mitochondrion 
C) lysosome 
D) Golgi body 
E) ribosome
F)rough endoplasmic reticulum
G)smooth endoplasmic reticulum G

Question 3

Meat,fruits,and vegetables could be contaminated with E.coli strains toxic to humans when they come in contact with animal ____.
I.feces
II.urine
III.Blood

Accepted Answer

A) I only 
B) I and II 
C) II and III 
D) I and III 
E) I, II, and III 
A) I only 
B) I and II 
C) II and III 
D) I and III 
E) I, II, and III A

Question 4

Which organelle primarily functions in packaging cellular secretions for export from the cell?

Accepted Answer

A) Golgi body 
B) mitochondria 
C) lysosome 
D) ribosome 
E) endoplasmic reticulum 
A) Golgi body 
B) mitochondria 
C) lysosome 
D) ribosome 
E) endoplasmic reticulum

Question 5

Match each cell structure represented with the appropriate description.
-storage of metabolic substances

Accepted Answer

A) peroxisomes 
B) chloroplasts 
C) Golgi bodies 
D) DNA molecules 
E) cuticle
F)central vacuoles
G)lysosomes
H)mitochondria
I)pseudopods
J)ribosomes 
A) peroxisomes 
B) chloroplasts 
C) Golgi bodies 
D) DNA molecules 
E) cuticle
F)central vacuoles
G)lysosomes
H)mitochondria
I)pseudopods
J)ribosomes

Question 6

Match each cell structure represented with the appropriate description.
-organelles of photosynthesis

Accepted Answer

A) peroxisomes 
B) chloroplasts 
C) Golgi bodies 
D) DNA molecules 
E) cuticle
F)central vacuoles
G)lysosomes
H)mitochondria
I)pseudopods
J)ribosomes 
A) peroxisomes 
B) chloroplasts 
C) Golgi bodies 
D) DNA molecules 
E) cuticle
F)central vacuoles
G)lysosomes
H)mitochondria
I)pseudopods
J)ribosomes

Question 7

The following are organelles found in animal cells.Match the organelle with the appropriate description.An answer may be used more than once.
-This organelle replicates independently of the cell and likely evolved from bacteria.

Accepted Answer

A) nucleus 
B) mitochondrion 
C) lysosome 
D) Golgi body 
E) ribosome
F)rough endoplasmic reticulum
G)smooth endoplasmic reticulum 
A) nucleus 
B) mitochondrion 
C) lysosome 
D) Golgi body 
E) ribosome
F)rough endoplasmic reticulum
G)smooth endoplasmic reticulum

Question 8

Examine the following figure.Match each letter of the figure with the appropriate cell structure.  
-flagellum

Accepted Answer

A) A 
B) B 
C) C 
D) D 
E) E
F)F
G)G 
A) A 
B) B 
C) C 
D) D 
E) E
F)F
G)G

Question 9

Which organelle is correctly matched with its function?

Accepted Answer

A) vacuoles: production of ATP from carbohydrates 
B) rough ER: synthesis of plasma membrane proteins 
C) Golgi bodies: synthesis of membrane phospholipids 
D) mitochondria: capture of light for photosynthesis 
E) smooth ER: digestion of invading bacteria 
A) vacuoles: production of ATP from carbohydrates 
B) rough ER: synthesis of plasma membrane proteins 
C) Golgi bodies: synthesis of membrane phospholipids 
D) mitochondria: capture of light for photosynthesis 
E) smooth ER: digestion of invading bacteria

Question 10

According to cell theory,____.

Accepted Answer

A) all organisms are multicellular 
B) all cells come from preexisting cells 
C) DNA is the structural and functional unit of life 
D) all cells are approximately the same size 
E) proteins are the genetic material of cells 
A) all organisms are multicellular 
B) all cells come from preexisting cells 
C) DNA is the structural and functional unit of life 
D) all cells are approximately the same size 
E) proteins are the genetic material of cells

Question 11

A water-soluble hormone (signaling molecule)would most likely bind to which membrane protein?

Accepted Answer

A) active transporter 
B) recognition 
C) receptor 
D) passive transporter 
E) regulator 
A) active transporter 
B) recognition 
C) receptor 
D) passive transporter 
E) regulator

Question 12

Biofilms found in nature ____.

Accepted Answer

A) contain only bacteria 
B) are composed of multicellular organisms 
C) are most often found on liquid surfaces 
D) are communities of unicellular organisms 
E) contain only closely related organisms 
A) contain only bacteria 
B) are composed of multicellular organisms 
C) are most often found on liquid surfaces 
D) are communities of unicellular organisms 
E) contain only closely related organisms

Question 13

The relative impermeability of membranes to water soluble molecules is a result of the ____.

Accepted Answer

A) nonpolar nature of water 
B) presence of large proteins that extend through both sides of membranes 
C) presence of inorganic salt crystals scattered through some membranes 
D) presence of cellulose and waxes 
E) presence of phospholipids in the lipid bilayer 
A) nonpolar nature of water 
B) presence of large proteins that extend through both sides of membranes 
C) presence of inorganic salt crystals scattered through some membranes 
D) presence of cellulose and waxes 
E) presence of phospholipids in the lipid bilayer

Question 14

Which microscope visualizes specimens coated with a thin layer of metal?

Accepted Answer

A) transmission electron microscope 
B) scanning electron microscope 
C) fluorescence microscope 
D) phase-contrast microscope 
E) compound microscope 
A) transmission electron microscope 
B) scanning electron microscope 
C) fluorescence microscope 
D) phase-contrast microscope 
E) compound microscope

Question 15

Peptic ulcers are caused by damage to the wall of the stomach by the acids that help digest food.This can be caused by the failure of ____.

Accepted Answer

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

Question 16

Which hair-like cellular projections line the respiratory tract and sweep inhaled particles away from the lungs?

Accepted Answer

A) flagella 
B) cilia 
C) intermediate filaments 
D) pseudopods 
E) microvilli 
A) flagella 
B) cilia 
C) intermediate filaments 
D) pseudopods 
E) microvilli

Question 17

Examine the following figure.Match each letter of the figure with the appropriate cell structure.  
-capsule

Accepted Answer

A) A 
B) B 
C) C 
D) D 
E) E
F)F
G)G 
A) A 
B) B 
C) C 
D) D 
E) E
F)F
G)G

Question 18

How does cell volume affect nutrient exchange between the cell and its external environment?

Accepted Answer

A) Very large cells are the best adapted for nutrient exchange. 
B) Very small cells are the best adapted for nutrient exchange. 
C) Nutrient exchange is not impacted by cell volume. 
D) The ratio of cell volume to surface area determines the efficiency of nutrient exchange. 
E) Cells with a large volume and small surface area are well-adapted for nutrient exchange. 
A) Very large cells are the best adapted for nutrient exchange. 
B) Very small cells are the best adapted for nutrient exchange. 
C) Nutrient exchange is not impacted by cell volume. 
D) The ratio of cell volume to surface area determines the efficiency of nutrient exchange. 
E) Cells with a large volume and small surface area are well-adapted for nutrient exchange.

Question 19

A protein is synthesized on a ribosome within the rough endoplasmic reticulum.If the protein needs to be modified and packaged before export from the cell,to which structure is it sent?

Accepted Answer

A) endosome 
B) lysosome 
C) Golgi body 
D) nucleus 
E) smooth endoplasmic reticulum 
A) endosome 
B) lysosome 
C) Golgi body 
D) nucleus 
E) smooth endoplasmic reticulum

Question 20

Match each cell structure represented with the appropriate description.
-break down organic compounds to form ATP

Accepted Answer

A) peroxisomes 
B) chloroplasts 
C) Golgi bodies 
D) DNA molecules 
E) cuticle
F)central vacuoles
G)lysosomes
H)mitochondria
I)pseudopods
J)ribosomes 
A) peroxisomes 
B) chloroplasts 
C) Golgi bodies 
D) DNA molecules 
E) cuticle
F)central vacuoles
G)lysosomes
H)mitochondria
I)pseudopods
J)ribosomes

Why are adhering junctions common in tissues subject to constant abrasion or stretching,such as skin?

The following are organelles found in animal cells.Match the organelle with the appropriate description.An answer may be used more than once. -This organelle is involved in lipid synthesis.

Meat,fruits,and vegetables could be contaminated with E.coli strains toxic to humans when they come in contact with animal ____. I.feces II.urine III.Blood

Which organelle primarily functions in packaging cellular secretions for export from the cell?

Match each cell structure represented with the appropriate description. -storage of metabolic substances

Match each cell structure represented with the appropriate description. -organelles of photosynthesis

The following are organelles found in animal cells.Match the organelle with the appropriate description.An answer may be used more than once. -This organelle replicates independently of the cell and likely evolved from bacteria.

Examine the following figure.Match each letter of the figure with the appropriate cell structure. -flagellum

Which organelle is correctly matched with its function?

According to cell theory,____.

A water-soluble hormone (signaling molecule)would most likely bind to which membrane protein?

Biofilms found in nature ____.

The relative impermeability of membranes to water soluble molecules is a result of the ____.

Which microscope visualizes specimens coated with a thin layer of metal?

Peptic ulcers are caused by damage to the wall of the stomach by the acids that help digest food.This can be caused by the failure of ____.

Which hair-like cellular projections line the respiratory tract and sweep inhaled particles away from the lungs?

Examine the following figure.Match each letter of the figure with the appropriate cell structure. -capsule

How does cell volume affect nutrient exchange between the cell and its external environment?

A protein is synthesized on a ribosome within the rough endoplasmic reticulum.If the protein needs to be modified and packaged before export from the cell,to which structure is it sent?

Match each cell structure represented with the appropriate description. -break down organic compounds to form ATP

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

Filters

Exam 3: Cell Structure

Why are adhering junctions common in tissues subject to constant abrasion or stretching,such as skin?

The following are organelles found in animal cells.Match the organelle with the appropriate description.An answer may be used more than once. -This organelle is involved in lipid synthesis.

Meat,fruits,and vegetables could be contaminated with E.coli strains toxic to humans when they come in contact with animal ____. I.feces II.urine III.Blood

Which organelle primarily functions in packaging cellular secretions for export from the cell?

Match each cell structure represented with the appropriate description. -storage of metabolic substances

Match each cell structure represented with the appropriate description. -organelles of photosynthesis

The following are organelles found in animal cells.Match the organelle with the appropriate description.An answer may be used more than once. -This organelle replicates independently of the cell and likely evolved from bacteria.

Examine the following figure.Match each letter of the figure with the appropriate cell structure. -flagellum

Which organelle is correctly matched with its function?

According to cell theory,____.

A water-soluble hormone (signaling molecule)would most likely bind to which membrane protein?

Biofilms found in nature ____.

The relative impermeability of membranes to water soluble molecules is a result of the ____.

Which microscope visualizes specimens coated with a thin layer of metal?

Peptic ulcers are caused by damage to the wall of the stomach by the acids that help digest food.This can be caused by the failure of ____.

Which hair-like cellular projections line the respiratory tract and sweep inhaled particles away from the lungs?

Examine the following figure.Match each letter of the figure with the appropriate cell structure. -capsule

How does cell volume affect nutrient exchange between the cell and its external environment?

A protein is synthesized on a ribosome within the rough endoplasmic reticulum.If the protein needs to be modified and packaged before export from the cell,to which structure is it sent?

Match each cell structure represented with the appropriate description. -break down organic compounds to form ATP

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

Filters