Question 1

How many genes does it appear that humans have?

Accepted Answer

A) 25,000 
B) 100,000 
C) 3 million 
D) 3 billion 
A) 25,000 
B) 100,000 
C) 3 million 
D) 3 billion

Question 2

Genes present in heterochromatin are readily expressed.

Accepted Answer

A) True 
 B)False

Question 3

Which of the following is NOT an explanation for how one gene can produce more than one protein?

Accepted Answer

A) posttranslational methylation and phosphorylation 
B) different groups of polypeptides associating to make different proteins 
C) various cuts and splices of mRNA 
D) different carbohydrates bonded to the protein 
A) posttranslational methylation and phosphorylation 
B) different groups of polypeptides associating to make different proteins 
C) various cuts and splices of mRNA 
D) different carbohydrates bonded to the protein

Question 4

RNA strands such as siRNA and miRNA can prevent gene expression in mRNA.

Accepted Answer

A) True 
 B)False

Question 5

The spooling of DNA around histones creates particles called

Accepted Answer

A) nucleoli. 
B) proteosomes. 
C) nucleosomes. 
D) euchromatin. 
A) nucleoli. 
B) proteosomes. 
C) nucleosomes. 
D) euchromatin.

Question 6

What organelle functions to chemically modify cellular products and package them in vesicles?

Accepted Answer

A) Golgi complex 
B) mitochondrion 
C) lysosome 
D) ribosome 
A) Golgi complex 
B) mitochondrion 
C) lysosome 
D) ribosome

Question 7

Primary lysosomes consist of digestive enzymes and the contents of a food vacuole.

Accepted Answer

A) True 
 B)False

Question 8

Phagocytosis is a bulk transport process in which the plasma membrane extends as pseudopods around a particle of organic matter.

Accepted Answer

A) True 
 B)False

Question 9

Why is it necessary for the cell to degrade some cellular proteins?

Accepted Answer

A) to eliminate incorrectly folded proteins 
B) to remove specific enzymes and plasma membrane proteins 
C) for tight control of the cell cycle 
D) All apply 
A) to eliminate incorrectly folded proteins 
B) to remove specific enzymes and plasma membrane proteins 
C) for tight control of the cell cycle 
D) All apply

Question 10

Growth due to an increase in cell number is called

Accepted Answer

A) hypertrophy. 
B) hyperplasia. 
C) atrophy. 
D) dystrophy. 
A) hypertrophy. 
B) hyperplasia. 
C) atrophy. 
D) dystrophy.

Question 11

The movement of chromosomes during mitosis is due to

Accepted Answer

A) spindle fibers. 
B) telomeres. 
C) chromatids. 
D) actin and myosin. 
A) spindle fibers. 
B) telomeres. 
C) chromatids. 
D) actin and myosin.

Question 12

Cellular senescence may be prevented by

Accepted Answer

A) increased DNA polymerase activity. 
B) increased telomerase activity. 
C) increased RNA polymerase activity. 
D) increased synthase activity. 
A) increased DNA polymerase activity. 
B) increased telomerase activity. 
C) increased RNA polymerase activity. 
D) increased synthase activity.

Question 13

The process of cell death in which cell membranes remain intact but become bubbled and the nuclei condense is known as

Accepted Answer

A) endocytosis. 
B) phagocytosis. 
C) exocytosis. 
D) apoptosis. 
A) endocytosis. 
B) phagocytosis. 
C) exocytosis. 
D) apoptosis.

Question 14

Cells synthesizing large quantities of proteins would have numerous nucleoli.

Accepted Answer

A) True 
 B)False

Question 15

A codon codes for a(an)

Accepted Answer

A) mRNA. 
B) fatty acid. 
C) carbohydrate. 
D) amino aciD. 
A) mRNA. 
B) fatty acid. 
C) carbohydrate. 
D) amino aciD.

Question 16

Which of the following is NOT a function of the Golgi complex?

Accepted Answer

A) packaging final proteins in vesicles 
B) modifying proteins 
C) separation of different types of proteins 
D) removal of the leader sequence from the protein 
A) packaging final proteins in vesicles 
B) modifying proteins 
C) separation of different types of proteins 
D) removal of the leader sequence from the protein

Question 17

Chromatin is comprised of _____________ and ___________.

Accepted Answer

A) phospholipids,DNA 
B) DNA,protein 
C) RNA,protein 
D) DNA,RNA 
A) phospholipids,DNA 
B) DNA,protein 
C) RNA,protein 
D) DNA,RNA

Question 18

The process of tissue death in which cells swell,rupture their membranes,and burst is called

Accepted Answer

A) apoptosis. 
B) phagocytosis. 
C) necrosis. 
D) transcytosis. 
A) apoptosis. 
B) phagocytosis. 
C) necrosis. 
D) transcytosis.

Question 19

The proteins found in chromatin are called histones,are positively charged,and form spools.

Accepted Answer

A) True 
 B)False

Question 20

The main function of the peroxisome is to release energy from food molecules and transform the energy into usable ATP.

Accepted Answer

A) True 
 B)False

How many genes does it appear that humans have?

Genes present in heterochromatin are readily expressed.

Which of the following is NOT an explanation for how one gene can produce more than one protein?

RNA strands such as siRNA and miRNA can prevent gene expression in mRNA.

The spooling of DNA around histones creates particles called

What organelle functions to chemically modify cellular products and package them in vesicles?

Primary lysosomes consist of digestive enzymes and the contents of a food vacuole.

Phagocytosis is a bulk transport process in which the plasma membrane extends as pseudopods around a particle of organic matter.

Why is it necessary for the cell to degrade some cellular proteins?

Growth due to an increase in cell number is called

The movement of chromosomes during mitosis is due to

Cellular senescence may be prevented by

The process of cell death in which cell membranes remain intact but become bubbled and the nuclei condense is known as

Cells synthesizing large quantities of proteins would have numerous nucleoli.

A codon codes for a(an)

Which of the following is NOT a function of the Golgi complex?

Chromatin is comprised of ___ and _.

The process of tissue death in which cells swell,rupture their membranes,and burst is called

The proteins found in chromatin are called histones,are positively charged,and form spools.

The main function of the peroxisome is to release energy from food molecules and transform the energy into usable ATP.

The Study of Body Function

Chemical Composition of the Body

Cell Respiration and Metabolism

Interactions Between Cells and the Extracellular Environment

The Nervous System: Neurons and Synapses

The Central Nervous System

The Autonomic Nervous System

Sensory Physiology

Endocrine Glands: Secretion and Action of Hormones

Muscle: Mechanisms of Contraction and Neural Control

Blood,heart and Circulation

Cardiac Output, blood Flow, and Blood Pressure

The Immune System

Respiratory Physiology

Physiology of the Kidneys

The Digestive System

Regulation and Metabolism

Reproduction

Filters

Exam 3: Cell Structure and Genetic Control

How many genes does it appear that humans have?

Genes present in heterochromatin are readily expressed.

Which of the following is NOT an explanation for how one gene can produce more than one protein?

RNA strands such as siRNA and miRNA can prevent gene expression in mRNA.

The spooling of DNA around histones creates particles called

What organelle functions to chemically modify cellular products and package them in vesicles?

Primary lysosomes consist of digestive enzymes and the contents of a food vacuole.

Phagocytosis is a bulk transport process in which the plasma membrane extends as pseudopods around a particle of organic matter.

Why is it necessary for the cell to degrade some cellular proteins?

Growth due to an increase in cell number is called

The movement of chromosomes during mitosis is due to

Cellular senescence may be prevented by

The process of cell death in which cell membranes remain intact but become bubbled and the nuclei condense is known as

Cells synthesizing large quantities of proteins would have numerous nucleoli.

A codon codes for a(an)

Which of the following is NOT a function of the Golgi complex?

Chromatin is comprised of _____________ and ___________.

The process of tissue death in which cells swell,rupture their membranes,and burst is called

The proteins found in chromatin are called histones,are positively charged,and form spools.

The main function of the peroxisome is to release energy from food molecules and transform the energy into usable ATP.

The Study of Body Function

Chemical Composition of the Body

Cell Respiration and Metabolism

Interactions Between Cells and the Extracellular Environment

The Nervous System: Neurons and Synapses

The Central Nervous System

The Autonomic Nervous System

Sensory Physiology

Endocrine Glands: Secretion and Action of Hormones

Muscle: Mechanisms of Contraction and Neural Control

Blood,heart and Circulation

Cardiac Output, blood Flow, and Blood Pressure

The Immune System

Respiratory Physiology

Physiology of the Kidneys

The Digestive System

Regulation and Metabolism

Reproduction

Filters

Chromatin is comprised of ___ and _.