Question 1

What factor accounts for the small size of most cells?

Accepted Answer

A) size 
B) composition 
C) weight 
D) surface to volume ratio 
E) all of these 
A) size 
B) composition 
C) weight 
D) surface to volume ratio 
E) all of these

Question 2

The organelle that pinches off portions of its membrane to form a compartment used for storage or transport is the

Accepted Answer

A) mitochondrion. 
B) chloroplast. 
C) nucleolus. 
D) Golgi body. 
E) vesicle. 
A) mitochondrion. 
B) chloroplast. 
C) nucleolus. 
D) Golgi body. 
E) vesicle.

Question 3

Bacteria in the intestinal tract can prevent pathogens from causing disease by

Accepted Answer

A) crowding them out. 
B) eating other bacteria. 
C) producing protein traps to kill them. 
D) submerging them in acid in the stomach. 
E) all of these. 
A) crowding them out. 
B) eating other bacteria. 
C) producing protein traps to kill them. 
D) submerging them in acid in the stomach. 
E) all of these.

Question 4

Energy stored in which of the following substances is converted by mitochondria to a form usable by the cell?

Accepted Answer

A) water 
B) organic compounds 
C) NAD+ 
D) ATP 
E) carbon dioxide 
A) water 
B) organic compounds 
C) NAD+ 
D) ATP 
E) carbon dioxide

Question 5

Which of the following are the primary cellular sites for the capture of energy from carbohydrates?

Accepted Answer

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

Question 6

All cells except bacteria and archaea

Accepted Answer

A) are eukaryotes. 
B) possess a nucleus. 
C) use organelles for compartmentalization. 
D) have a dynamic "skeleton" of proteins. 
E) are all of these. 
A) are eukaryotes. 
B) possess a nucleus. 
C) use organelles for compartmentalization. 
D) have a dynamic "skeleton" of proteins. 
E) are all of these.

Question 7

The double membrane of a mitochondrion in contrast to the membrane of the nucleus

Accepted Answer

A) is riddled with pores. 
B) is not permeable. 
C) creates two compartments. 
D) separates DNA from cytoplasm. 
E) has two lipid bilayers. 
A) is riddled with pores. 
B) is not permeable. 
C) creates two compartments. 
D) separates DNA from cytoplasm. 
E) has two lipid bilayers.

Question 8

The highest magnification generally used to study cells is provided by the

Accepted Answer

A) transmission electron microscope. 
B) compound light microscope. 
C) phase contrast microscope. 
D) scanning electron microscope. 
E) Nomarski process light microscope. 
A) transmission electron microscope. 
B) compound light microscope. 
C) phase contrast microscope. 
D) scanning electron microscope. 
E) Nomarski process light microscope.

Question 9

The components of membranes that account for most of their active functions are

Accepted Answer

A) carbohydrates. 
B) sterols. 
C) proteins. 
D) fats. 
E) phospholipids. 
A) carbohydrates. 
B) sterols. 
C) proteins. 
D) fats. 
E) phospholipids.

Question 10

The system of tubes and sacs that makes enzymes, proteins and lipids is(are) the

Accepted Answer

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

Question 11

Which of the following is one of the two main functions of the nuclear envelope?

Accepted Answer

A) provides residence for ribosomes 
B) allows separation of DNA from cytoplasm machinery 
C) provides total isolation of nuclear components 
D) enables faster cell division 
E) enables larger cell size 
A) provides residence for ribosomes 
B) allows separation of DNA from cytoplasm machinery 
C) provides total isolation of nuclear components 
D) enables faster cell division 
E) enables larger cell size

Question 12

Groups of bacteria living together in a close knit group are also known as

Accepted Answer

A) eukaryotes. 
B) all pathogenic bacteria. 
C) monophylogenic cultures. 
D) biofilms. 
E) all of these. 
A) eukaryotes. 
B) all pathogenic bacteria. 
C) monophylogenic cultures. 
D) biofilms. 
E) all of these.

Exam 4: Cell Structure and Function

What factor accounts for the small size of most cells?

The organelle that pinches off portions of its membrane to form a compartment used for storage or transport is the

Bacteria in the intestinal tract can prevent pathogens from causing disease by

Energy stored in which of the following substances is converted by mitochondria to a form usable by the cell?

Which of the following are the primary cellular sites for the capture of energy from carbohydrates?

All cells except bacteria and archaea

The double membrane of a mitochondrion in contrast to the membrane of the nucleus

The highest magnification generally used to study cells is provided by the

The components of membranes that account for most of their active functions are

The system of tubes and sacs that makes enzymes, proteins and lipids is(are) the

Which of the following is one of the two main functions of the nuclear envelope?

Groups of bacteria living together in a close knit group are also known as

Invitation to Biology

Lifes Chemical Basis

Molecules of Life

A Closer Look at Cell Membranes

Ground Rules of Metabolism

Where It Startsphotosynthesis

Energy-Releasing Pathways

How Cells Reproduce

Meiosis and Sexual Reproduction

Observing Patterns in Inherited Traits

Chromosomes and Human Inheritance

Dna Structure and Function

From Dna to Protein

Controls Over Genes

Recombinant Dna and Genetic Engineering

The Macroevolutionary Puzzle

Emergence of Evolutionary Thought

Organizing Information About Species

The Origin and Evolution of Life

Viruses and Prokaryotes

Protists the Simplest Eukaryotes

Plants

Fungi

Animals: the Invertebrates

Animal Evolution the Chordates

Human Evolution: a Case Study

Plant Tissues

Plant Nutrition and Transport

Plant Reproduction

Plant Growth and Development

Animal Tissues and Organ Systems

Neural Control

Sensory Perception

Endocrine Control

Protection, Support, and Movement

Circulation

Immunity

Respiration

Digestion and Human Nutrition

Maintaining the Internal Environment

Animal Reproductive Systems

Animal Development

Animal Behavior

Population Ecology

Community Structure and Biodiversity

Ecosystems

The Biosphere

Human Impacts on the Biosphere

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