Question 1

Which of the following structures is found in the nucleus?

Accepted Answer

A)  cristae 
B)  cytosol 
C)  cisternae 
D)  chromosome 
E)  flattened membrane sacs 
A)  cristae 
B)  cytosol 
C)  cisternae 
D)  chromosome 
E)  flattened membrane sacs

Question 2

Plasma membrane phospholipids

Accepted Answer

A)  have polar (charged) tails. 
B)  are arranged in a single layer. 
C)  have tails that face the exterior of the membrane. 
D)  are 95% cholesterol. 
E)  have a hydrophilic head and hydrophobic tails. 
A)  have polar (charged) tails. 
B)  are arranged in a single layer. 
C)  have tails that face the exterior of the membrane. 
D)  are 95% cholesterol. 
E)  have a hydrophilic head and hydrophobic tails.

Question 3

The _____________ contains the genetic information of the cell.

Accepted Answer

A)  nucleolus 
B)  ribosome 
C)  nucleoplasm 
D)  nucleus 
E)  nucleosome 
A)  nucleolus 
B)  ribosome 
C)  nucleoplasm 
D)  nucleus 
E)  nucleosome

Question 4

The movement of molecules against their concentration gradient is called

Accepted Answer

A)  active transport. 
B)  diffusion. 
C)  endocytosis. 
D)  facilitated diffusion. 
E)  osmosis. 
A)  active transport. 
B)  diffusion. 
C)  endocytosis. 
D)  facilitated diffusion. 
E)  osmosis.

Question 5

Which of the following cell organelles does not contain microtubules?

Accepted Answer

A)  cilia 
B)  flagella 
C)  spindle fibers 
D)  centrioles 
E)  All of these choices contain microtubules. 
A)  cilia 
B)  flagella 
C)  spindle fibers 
D)  centrioles 
E)  All of these choices contain microtubules.

Question 6

_____________ pressure is the force required to prevent the movement of water by osmosis across a semipermeable membrane.

Accepted Answer

A)  Hydration 
B)  Hydrolic 
C)  Osmotic 
D)  Fluid 
E)  Filtration 
A)  Hydration 
B)  Hydrolic 
C)  Osmotic 
D)  Fluid 
E)  Filtration

Question 7

Ribosomes are organelles responsible for

Accepted Answer

A)  protein synthesis. 
B)  manufacturing lipids. 
C)  cell movement and cell shape. 
D)  packaging "cell products" for export. 
E)  energy production. 
A)  protein synthesis. 
B)  manufacturing lipids. 
C)  cell movement and cell shape. 
D)  packaging "cell products" for export. 
E)  energy production.

Question 8

Which of the following is NOT consistent with active transport?

Accepted Answer

A)  movement is against a concentration gradient 
B)  movement is with a concentration gradient 
C)  involves a carrier 
D)  exhibits competition and saturation 
E)  uses cell energy 
A)  movement is against a concentration gradient 
B)  movement is with a concentration gradient 
C)  involves a carrier 
D)  exhibits competition and saturation 
E)  uses cell energy

Question 9

What is the only human cell with a flagellum?

Accepted Answer

A)  columnar cells of upper respiratory tract 
B)  spermatozoa 
C)  columnar cells of small intestines 
D)  red blood cells 
E)  macrophage (large, mobile white blood cell) 
A)  columnar cells of upper respiratory tract 
B)  spermatozoa 
C)  columnar cells of small intestines 
D)  red blood cells 
E)  macrophage (large, mobile white blood cell)

Question 10

Genes that play a role in the regulation of mitosis are called

Accepted Answer

A)  basal cells. 
B)  oncogenes. 
C)  proto-oncogenes. 
D)  mutagens. 
E)  apoptogenes. 
A)  basal cells. 
B)  oncogenes. 
C)  proto-oncogenes. 
D)  mutagens. 
E)  apoptogenes.

Question 11

All triplets required to code for synthesis of a protein are a

Accepted Answer

A)  pre-mRNA. 
B)  proenzyme. 
C)  gene. 
D)  ribosomal RNA (rRN
A) . 
E)  codon. 
A)  pre-mRNA. 
B)  proenzyme. 
C)  gene. 
D)  ribosomal RNA (rRN
A) . 
E)  codon.

Question 12

Mitosis forms

Accepted Answer

A)  two daughter cells with half the DNA of the mother cell. 
B)  two daughter cells with the same amount of DNA as the mother cell. 
C)  daughter cells called gametes. 
D)  two daughter cells with twice the amount of DNA as the mother cell. 
E)  one daughter cell and another incomplete cell. 
A)  two daughter cells with half the DNA of the mother cell. 
B)  two daughter cells with the same amount of DNA as the mother cell. 
C)  daughter cells called gametes. 
D)  two daughter cells with twice the amount of DNA as the mother cell. 
E)  one daughter cell and another incomplete cell.

Question 13

The plasma membrane is selectively permeable. This means

Accepted Answer

A)  only gases and water can pass through it. 
B)  substances need permission to pass through it. 
C)  only certain substances can pass through it. 
D)  substances need carrier molecules to pass through it. 
E)  ATP is always needed to move molecules across the plasma membrane. 
A)  only gases and water can pass through it. 
B)  substances need permission to pass through it. 
C)  only certain substances can pass through it. 
D)  substances need carrier molecules to pass through it. 
E)  ATP is always needed to move molecules across the plasma membrane.

Question 14

Solution A contains 5 grams of sugar per liter while solution B contains 2 grams of sugar per liter. The solutions are separated by a selectively permeable membrane. If the solvent in both solutions is water, predict in which direction most of the water molecules will move.

Accepted Answer

A)  move by simple diffusion from solution A to solution B 
B)  move by osmosis from solution B to solution A 
C)  move by active transport from solution B to solution A 
D)  move by filtration from solution A to solution B 
E)  There will be no movement of water. 
A)  move by simple diffusion from solution A to solution B 
B)  move by osmosis from solution B to solution A 
C)  move by active transport from solution B to solution A 
D)  move by filtration from solution A to solution B 
E)  There will be no movement of water.

Question 15

The "control center" of the cell is the

Accepted Answer

A)  nucleus. 
B)  ribosome. 
C)  mitochondrion. 
D)  plasma membrane. 
E)  endoplasmic reticulum. 
A)  nucleus. 
B)  ribosome. 
C)  mitochondrion. 
D)  plasma membrane. 
E)  endoplasmic reticulum.

Question 16

The main components of the plasma membrane are

Accepted Answer

A)  carbohydrates, ions, and lipids. 
B)  lipids and ions. 
C)  proteins and carbohydrates. 
D)  proteins, lipids, and carbohydrates. 
E)  ions, lipids, and proteins. 
A)  carbohydrates, ions, and lipids. 
B)  lipids and ions. 
C)  proteins and carbohydrates. 
D)  proteins, lipids, and carbohydrates. 
E)  ions, lipids, and proteins.

Question 17

A cell that produces many proteins for secretion would have large numbers of

Accepted Answer

A)  rough ER and Golgi apparatus. 
B)  lysosomes and Golgi apparatus. 
C)  Golgi apparatus and microvilli. 
D)  ribosomes and centrioles. 
E)  mitochondria and cilia. 
A)  rough ER and Golgi apparatus. 
B)  lysosomes and Golgi apparatus. 
C)  Golgi apparatus and microvilli. 
D)  ribosomes and centrioles. 
E)  mitochondria and cilia.

Question 18

Chromatin condenses and nucleoli disappear during

Accepted Answer

A)  interphase. 
B)  prophase. 
C)  metaphase. 
D)  anaphase. 
E)  telophase. 
A)  interphase. 
B)  prophase. 
C)  metaphase. 
D)  anaphase. 
E)  telophase.

Question 19

Which of the following terms does NOT relate to the mitochondria?

Accepted Answer

A)  cristae 
B)  self-replicating 
C)  outer and inner membranes 
D)  ATP 
E)  vitamin A storage 
A)  cristae 
B)  self-replicating 
C)  outer and inner membranes 
D)  ATP 
E)  vitamin A storage

Question 20

What type of membrane proteins can catalyze chemical reactions on the inner or outer surfaces of the plasma membrane?

Accepted Answer

A)  marker molecules 
B)  channel protein 
C)  receptor proteins 
D)  enzymes 
E)  carrier proteins 
A)  marker molecules 
B)  channel protein 
C)  receptor proteins 
D)  enzymes 
E)  carrier proteins

Exam 3: Cell Biology

Which of the following structures is found in the nucleus?

Plasma membrane phospholipids

The _____________ contains the genetic information of the cell.

The movement of molecules against their concentration gradient is called

Which of the following cell organelles does not contain microtubules?

_____________ pressure is the force required to prevent the movement of water by osmosis across a semipermeable membrane.

Ribosomes are organelles responsible for

Which of the following is NOT consistent with active transport?

What is the only human cell with a flagellum?

Genes that play a role in the regulation of mitosis are called

All triplets required to code for synthesis of a protein are a

Mitosis forms

The plasma membrane is selectively permeable. This means

Solution A contains 5 grams of sugar per liter while solution B contains 2 grams of sugar per liter. The solutions are separated by a selectively permeable membrane. If the solvent in both solutions is water, predict in which direction most of the water molecules will move.

The "control center" of the cell is the

The main components of the plasma membrane are

A cell that produces many proteins for secretion would have large numbers of

Chromatin condenses and nucleoli disappear during

Which of the following terms does NOT relate to the mitochondria?

What type of membrane proteins can catalyze chemical reactions on the inner or outer surfaces of the plasma membrane?

The Human Organism

The Chemical Basis of Life

Tissues

Integumentary System

Skeletal System: Bones and Bone Tissue

Skeletal System: Gross Anatomy

Joints and Movement

Muscular System: Histology and Physiology

Muscular System: Gross Anatomy

Functional Organization of Nervous Tissue

Spinal Cord and Spinal Nerves

Brain and Cranial Nerves

Integration of Nervous System Functions

The Special Senses

Autonomic Nervous System

Functional Organization of the Endocrine System

Endocrine Glands

Cardiovascular System: Blood

Cardiovascular System: the Heart

Cardiovascular System: Blood Vessels and Circulation

Lymphatic System and Immunity

Respiratory System

Digestive System

Nutrition, Metabolism, and Temperature Regulation

Urinary System

Water, Electrolytes, and Acidbase Balance

Reproductive System

Development, Growth, Aging, and Genetics

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