Question 1

Pinocytosis would allow the intake of

Accepted Answer

A)  solid food. 
B)  gas. 
C)  molecules dissolved in water. 
D)  All of these answers are true. 
A)  solid food. 
B)  gas. 
C)  molecules dissolved in water. 
D)  All of these answers are true.

Question 2

Most plant cells differ from animal cells in that they

Accepted Answer

A)  possess nucleoli. 
B)  lack nucleoli. 
C)  contain mitochondria. 
D)  lack centrioles. 
A)  possess nucleoli. 
B)  lack nucleoli. 
C)  contain mitochondria. 
D)  lack centrioles.

Question 3

____ is not a component of a cellular membrane.

Accepted Answer

A)  Cholesterol 
B)  Nucleic acid 
C)  Phospholipid 
D)  Protein 
A)  Cholesterol 
B)  Nucleic acid 
C)  Phospholipid 
D)  Protein

Question 4

Noneukaryotic cells lack

Accepted Answer

A)  granules. 
B)  a nucleus. 
C)  flagella. 
D)  All of these answers are true. 
A)  granules. 
B)  a nucleus. 
C)  flagella. 
D)  All of these answers are true.

Question 5

A true cellular nucleus is found in

Accepted Answer

A)  bacteria. 
B)  eukaryotic cells. 
C)  blue-green algae. 
D)  All of these answers are true. 
A)  bacteria. 
B)  eukaryotic cells. 
C)  blue-green algae. 
D)  All of these answers are true.

Question 6

Which of the following help in defending humans against disease?

Accepted Answer

A)  immunoglobulins 
B)  lysosomes 
C)  peroxisomes 
D)  All of the choices help defend against disease. 
A)  immunoglobulins 
B)  lysosomes 
C)  peroxisomes 
D)  All of the choices help defend against disease.

Question 7

The surface area of a cell is important because

Accepted Answer

A)  the surface area limits the amount of molecular exchange that can take place between the cell and its surroundings. 
B)  a small surface area allows the cell to protect itself from foreign organisms. 
C)  a large surface area makes the cell more fragile. 
D)  the surface area determines the genetic capabilities of the cell. 
A)  the surface area limits the amount of molecular exchange that can take place between the cell and its surroundings. 
B)  a small surface area allows the cell to protect itself from foreign organisms. 
C)  a large surface area makes the cell more fragile. 
D)  the surface area determines the genetic capabilities of the cell.

Question 8

A cell that is 98% water is placed in a solution containing 3% salt. This cell is now _________ compared to its surroundings.

Accepted Answer

A)  isotonic 
B)  hypertonic 
C)  hypotonic 
D)  hydrophilic 
A)  isotonic 
B)  hypertonic 
C)  hypotonic 
D)  hydrophilic

Question 9

Many of these non-membranous organelles of eukaryotic cells are necessary to form the cytoskeleton of a cell.

Accepted Answer

A)  cilia 
B)  microfilaments 
C)  ER 
D)  chromatin 
A)  cilia 
B)  microfilaments 
C)  ER 
D)  chromatin

Question 10

Which of the following organelles contains enzymes that are able to manufacture H2O2?

Accepted Answer

A)  chloroplasts 
B)  peroxisomes 
C)  ribosomes 
D)  mitochondria 
A)  chloroplasts 
B)  peroxisomes 
C)  ribosomes 
D)  mitochondria

Question 11

The MAIN components of a cell membrane are

Accepted Answer

A)  phospholipids and proteins. 
B)  steroids and carbohydrates. 
C)  nucleic acids and simple sugars. 
D)  proteins and steroids. 
A)  phospholipids and proteins. 
B)  steroids and carbohydrates. 
C)  nucleic acids and simple sugars. 
D)  proteins and steroids.

Question 12

"I wish my Dad would stop smoking! Doesn't he know that nicotine inhibits the _________ lining his trachea, and when they stop moving, bacteria and viruses can settle down into his lungs causing pneumonia and emphysema?"

Accepted Answer

A)  cellular respiration 
B)  mitochondria 
C)  cilia 
D)  lysosomes 
A)  cellular respiration 
B)  mitochondria 
C)  cilia 
D)  lysosomes

Question 13

Material is engulfed directly by the cell by

Accepted Answer

A)  diffusion. 
B)  osmosis. 
C)  phagocytosis. 
D)  active transport. 
A)  diffusion. 
B)  osmosis. 
C)  phagocytosis. 
D)  active transport.

Question 14

What structure contains the main information storage system of eukaryotes?

Accepted Answer

A)  nucleolus 
B)  nucleoplasm 
C)  chloroplast 
D)  nucleus 
A)  nucleolus 
B)  nucleoplasm 
C)  chloroplast 
D)  nucleus

Question 15

Which of the following structures is found inside the nuclear membrane?

Accepted Answer

A)  endoplasmic reticulum 
B)  centriole 
C)  cell membrane 
D)  nucleolus 
A)  endoplasmic reticulum 
B)  centriole 
C)  cell membrane 
D)  nucleolus

Question 16

For diffusion to occur ____ is necessary.

Accepted Answer

A)  a concentration gradient 
B)  a differentially permeable membrane 
C)  temperature above 0$\degree$C 
D)  a carrier molecule 
A)  a concentration gradient 
B)  a differentially permeable membrane 
C)  temperature above 0$\degree$C 
D)  a carrier molecule

Question 17

One job of the nuclear membrane is to

Accepted Answer

A)  control entry to and exit from the nucleus. 
B)  produce enzymes. 
C)  digest chromosomes. 
D)  contain excess water. 
A)  control entry to and exit from the nucleus. 
B)  produce enzymes. 
C)  digest chromosomes. 
D)  contain excess water.

Question 18

The three Domains in which all living things are classified are

Accepted Answer

A)  Animals, Plants, and Microbes. 
B)  Noneukaryotic, Eukaryotic, and Archaea. 
C)  Eubacteria, Archaea, and Eukarya. 
D)  Bacteria, Plants, and Animals. 
A)  Animals, Plants, and Microbes. 
B)  Noneukaryotic, Eukaryotic, and Archaea. 
C)  Eubacteria, Archaea, and Eukarya. 
D)  Bacteria, Plants, and Animals.

Question 19

An outside source of energy (ATP) is required for

Accepted Answer

A)  osmosis. 
B)  diffusion. 
C)  active transport. 
D)  None of these answers is true. 
A)  osmosis. 
B)  diffusion. 
C)  active transport. 
D)  None of these answers is true.

Question 20

An intravenous (IV) solution must be __________________ to a person's red blood cells to prevent injury to the cells.

Accepted Answer

A)  isotonic 
B)  hypertonic 
C)  hypotonic 
D)  osmotic 
A)  isotonic 
B)  hypertonic 
C)  hypotonic 
D)  osmotic

Exam 4: Cell Structure and Function

Pinocytosis would allow the intake of

Most plant cells differ from animal cells in that they

____ is not a component of a cellular membrane.

Noneukaryotic cells lack

A true cellular nucleus is found in

Which of the following help in defending humans against disease?

The surface area of a cell is important because

A cell that is 98% water is placed in a solution containing 3% salt. This cell is now _________ compared to its surroundings.

Many of these non-membranous organelles of eukaryotic cells are necessary to form the cytoskeleton of a cell.

Which of the following organelles contains enzymes that are able to manufacture H2O2?

The MAIN components of a cell membrane are

"I wish my Dad would stop smoking! Doesn't he know that nicotine inhibits the _________ lining his trachea, and when they stop moving, bacteria and viruses can settle down into his lungs causing pneumonia and emphysema?"

Material is engulfed directly by the cell by

What structure contains the main information storage system of eukaryotes?

Which of the following structures is found inside the nuclear membrane?

For diffusion to occur ____ is necessary.

One job of the nuclear membrane is to

The three Domains in which all living things are classified are

An outside source of energy (ATP) is required for

An intravenous (IV) solution must be __________________ to a person's red blood cells to prevent injury to the cells.

What Is Biology

The Basics of Life: Chemistry

Organic Molecules: The Molecules of Life

Enzymes, Coenzymes, and Energy

Biochemical Pathways: Cellular Respiration

Biochemical Pathways: Photosynthesis

DNA and RNA: The Molecular Basis of Heredity

Cell Division: Proliferation and Reproduction

Patterns of Inheritance

Applications of Biotechnology

Diversity Within Species and Population Genetics

Evolution and Natural Selection

The Formation of Species and Evolutionary Change

Ecosystem Dynamics: The Flow of Energy and Matter

Community Interactions

Population Ecology

Evolutionary and Ecological Aspects of Behavior

The Origin of Life and the Evolution of Cells

The Classification and Evolution of Organisms

The Nature of Microorganisms

The Plant Kingdom

The Animal Kingdom

Materials Exchange in the Body

Nutrition: Food and Diet

The Bodys Control Mechanisms and Immunity

Human Reproduction, Sex, and Sexuality

Filters

Which of the following organelles contains enzymes that are able to manufacture H₂O₂?