Question 1

Which cell feature is absent in bacterial cells?

Accepted Answer

A) ribosomes 
B) cytoplasm 
C) nucleoid 
D) nucleus 
E) DNA 
A) ribosomes 
B) cytoplasm 
C) nucleoid 
D) nucleus 
E) DNA

Question 2

Which two cellular components are enclosed by a membrane?

Accepted Answer

A) ribosomes and peroxisomes 
B) microtubules and cytosol 
C) Golgi apparatus and peroxisomes 
D) chloroplasts and microtubules 
E) endoplasmic reticulum and ribosomes 
A) ribosomes and peroxisomes 
B) microtubules and cytosol 
C) Golgi apparatus and peroxisomes 
D) chloroplasts and microtubules 
E) endoplasmic reticulum and ribosomes

Question 3

Hydrophobic interactions of phospholipid tails make the ____ conformation of cell membranes possible.

Accepted Answer

A) lipid bilayer 
B) single layer 
C) rigid 
D) cytoskeletal 
E) nonpolar 
A) lipid bilayer 
B) single layer 
C) rigid 
D) cytoskeletal 
E) nonpolar

Question 4

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.

Question 5

Cell shape is reinforced by ____.

Accepted Answer

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

Question 6

Transport proteins _____.

Accepted Answer

A) are found only in eukaryotic cells 
B) allow only small molecules and ions to cross the membrane 
C) are required for small nonpolar molecules to cross the membrane 
D) allow ions and polar molecules to cross the membrane 
E) are peripheral membrane proteins 
A) are found only in eukaryotic cells 
B) allow only small molecules and ions to cross the membrane 
C) are required for small nonpolar molecules to cross the membrane 
D) allow ions and polar molecules to cross the membrane 
E) are peripheral membrane proteins

Question 7

Match between columns
                        Premises: motor protein that interacts with microtubules to create movement in flagella and cilia

Accepted Answer

The Answer of microtubules and microfilaments and intermediate filaments and is...

Question 8

Match between columns
                        Premises: contain enzymes for intracellular digestion

Accepted Answer

The Answer of pseudopods and mitochondria and cuticle and peroxisomes is...

Question 9

Match between columns
                        Premises: This organelle stores the cell's genetic material.

Accepted Answer

The Answer of Golgi body and mitochondrion and ribosome and is...

Question 10

Match between columns
                        Premises: made of actin subunits and function in cell migration

Accepted Answer

The Answer of microfilaments and dynein and microtubules and intermediate is...

Question 11

Which cellular component is common to all cell types?

Accepted Answer

A) cell wall 
B) mitochondria 
C) cytoplasm 
D) nucleus 
E) endoplasmic reticulum 
A) cell wall 
B) mitochondria 
C) cytoplasm 
D) nucleus 
E) endoplasmic reticulum

Question 12

Match between columns
                        Premises: capsule

Accepted Answer

The Answer of E and G and D and F is...

Question 13

The endoplasmic reticulum is an extension of ____.

Accepted Answer

A) the cytoskeleton 
B) flagella 
C) cilia 
D) the nuclear envelope 
E) the plasma membrane 
A) the cytoskeleton 
B) flagella 
C) cilia 
D) the nuclear envelope 
E) the plasma membrane

Question 14

Match between columns
                        Premises: The packaging of secretory proteins occurs in association with this structure.

Accepted Answer

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

Question 15

Match between columns
                        Premises: enzyme filled vesicle that breaks down amino acids, fatty acids, and toxic substances

Accepted Answer

The Answer of chloroplasts and ribosomes and cuticle and peroxisomes is...

Question 16

If a microscopic pin was stuck into the center of a bacterium, what would be the order of the structures encountered from the outside in?

Accepted Answer

A) capsule, cell wall, plasma membrane, cytoplasm 
B) cell wall, capsule, plasma membrane, cytoplasm 
C) plasma membrane, cell wall, capsule, cytoplasm 
D) cell wall, plasma membrane, capsule, cytoplasm 
E) capsule, plasma membrane, cell wall, cytoplasm 
A) capsule, cell wall, plasma membrane, cytoplasm 
B) cell wall, capsule, plasma membrane, cytoplasm 
C) plasma membrane, cell wall, capsule, cytoplasm 
D) cell wall, plasma membrane, capsule, cytoplasm 
E) capsule, plasma membrane, cell wall, cytoplasm

Question 17

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 18

Match between columns
                        Premises: Aerobic respiration occurs in this organelle.

Accepted Answer

The Answer of ribosome and smooth endoplasmic reticulum and lysosome is...

Question 19

Because the smooth ER does not contain ____, it cannot produce proteins.

Accepted Answer

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

Question 20

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

Which cell feature is absent in bacterial cells?

Which two cellular components are enclosed by a membrane?

Hydrophobic interactions of phospholipid tails make the ____ conformation of cell membranes possible.

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

Cell shape is reinforced by ____.

Transport proteins _____.

Which cellular component is common to all cell types?

The endoplasmic reticulum is an extension of ____.

If a microscopic pin was stuck into the center of a bacterium, what would be the order of the structures encountered from the outside in?

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

Because the smooth ER does not contain ____, it cannot produce proteins.

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

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

Filters

Exam 3: Cell Structure

Which cell feature is absent in bacterial cells?

Which two cellular components are enclosed by a membrane?

Hydrophobic interactions of phospholipid tails make the ____ conformation of cell membranes possible.

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

Cell shape is reinforced by ____.

Transport proteins _____.

Which cellular component is common to all cell types?

The endoplasmic reticulum is an extension of ____.

If a microscopic pin was stuck into the center of a bacterium, what would be the order of the structures encountered from the outside in?

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

Because the smooth ER does not contain ____, it cannot produce proteins.

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

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

Filters