Question 1

Amino acids are transferred to the ribosome to be incorporated into a growing polypeptide chain by ________.

Accepted Answer

The answer of Amino acids are transferred to the ribosome...

Question 2

Many proteins in the cytosol are ________ that accelerate metabolic reactions.

Accepted Answer

A) carbohydrates 
B) enzymes 
C) lipids 
D) messengers 
E) ions 
A) carbohydrates 
B) enzymes 
C) lipids 
D) messengers 
E) ions

Question 3

Permanent alterations in a cell's DNA that affect the nucleotide sequence of one or more genes are called ________.

Accepted Answer

The answer of Permanent alterations in a cell's DNA that...

Question 4

Ribosomes are composed of protein and ________.

Accepted Answer

The answer of Ribosomes are composed of protein and ________....

Question 5

In the mitochondrion,folds are to cristae as the contained fluid is to

Accepted Answer

A) actin. 
B) microvilli. 
C) cytosol. 
D) basal body. 
E) matrix. 
A) actin. 
B) microvilli. 
C) cytosol. 
D) basal body. 
E) matrix.

Question 6

An alternate term for tumor is

Accepted Answer

A) neoplasm. 
B) cytoplasm. 
C) benign malignancy. 
D) primary metastasis. 
E) nucleoplasm. 
A) neoplasm. 
B) cytoplasm. 
C) benign malignancy. 
D) primary metastasis. 
E) nucleoplasm.

Question 7

Most of the ATP required to power cellular operations is produced in the

Accepted Answer

A) cytoplasm. 
B) endoplasmic reticulum. 
C) nucleus. 
D) mitochondria. 
E) cilia. 
A) cytoplasm. 
B) endoplasmic reticulum. 
C) nucleus. 
D) mitochondria. 
E) cilia.

Question 8

A malignant neoplasm is often called a(n)________.

Accepted Answer

The answer of A malignant neoplasm is often called a(n)________....

Question 9

Chromosomes consist of ________ and ________.

Accepted Answer

A) RNA; carbohydrates 
B) DNA; lipids 
C) DNA; proteins 
D) water; RNA 
E) RNA; proteins 
A) RNA; carbohydrates 
B) DNA; lipids 
C) DNA; proteins 
D) water; RNA 
E) RNA; proteins

Question 10

The ________ of a membrane indicates how easy it is for substances to cross.

Accepted Answer

The answer of The ________ of a membrane indicates how...

Question 11

In ________ one substance is transported into the cell,and another is transported out.

Accepted Answer

countertra

Question 12

The endoplasmic reticulum is responsible for

Accepted Answer

A) drug and toxin neutralization. 
B) lipid synthesis. 
C) modification of new proteins. 
D) shipping molecules to the Golgi apparatus. 
E) All of the answers are correct. 
A) drug and toxin neutralization. 
B) lipid synthesis. 
C) modification of new proteins. 
D) shipping molecules to the Golgi apparatus. 
E) All of the answers are correct.

Question 13

Peroxisomes

Accepted Answer

A) contain enzymes that break down hydrogen peroxide. 
B) absorb and break down fatty acids,generating hydrogen peroxide in the process. 
C) are produced from other peroxisomes. 
D) are more abundant in cells with higher metabolic rates. 
E) All of the answers are correct. 
A) contain enzymes that break down hydrogen peroxide. 
B) absorb and break down fatty acids,generating hydrogen peroxide in the process. 
C) are produced from other peroxisomes. 
D) are more abundant in cells with higher metabolic rates. 
E) All of the answers are correct.

Question 14

What would the complimentary (matching)mRNA and tRNA molecules be from a DNA molecule that has the following triplets? coding strand: ATG-CAA
Template strand: TAC-GTT

Accepted Answer

A) mRNA: AUG-CAA, tRNA: TAC-GTT 
B) mRNA: ATG-CAA, tRNA: TAC-GTT 
C) mRNA: UAC-GUU, tRNA: AUG-CAA 
D) mRNA: TAC-GTT, tRNA: AUG-CAA 
E) mRNA: AUG-CAA, tRNA: UAC-GUU 
A) mRNA: AUG-CAA, tRNA: TAC-GTT 
B) mRNA: ATG-CAA, tRNA: TAC-GTT 
C) mRNA: UAC-GUU, tRNA: AUG-CAA 
D) mRNA: TAC-GTT, tRNA: AUG-CAA 
E) mRNA: AUG-CAA, tRNA: UAC-GUU

Question 15

The correct order of phases in cell division is:

Accepted Answer

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

Question 16

Water molecules and small ions enter a cell through

Accepted Answer

A) channels formed by integral proteins. 
B) peripheral proteins. 
C) lipid channels. 
D) peripheral carbohydrates. 
E) defects in the lipid layer of the membrane. 
A) channels formed by integral proteins. 
B) peripheral proteins. 
C) lipid channels. 
D) peripheral carbohydrates. 
E) defects in the lipid layer of the membrane.

Question 17

Diffusion of a substance across the cell membrane is influenced by all of the following,except

Accepted Answer

A) hydrolysis of ATP. 
B) the presence of the membrane channels. 
C) the charge on the ion. 
D) concentration gradient. 
E) lipid solubility. 
A) hydrolysis of ATP. 
B) the presence of the membrane channels. 
C) the charge on the ion. 
D) concentration gradient. 
E) lipid solubility.

Question 18

Which of the following statements about the Golgi apparatus is false?

Accepted Answer

A) receives transport vesicles from the RER 
B) sends transport vesicles to the RER 
C) produces lysosomes 
D) supplies new membrane components 
E) produces secretory vesicles 
A) receives transport vesicles from the RER 
B) sends transport vesicles to the RER 
C) produces lysosomes 
D) supplies new membrane components 
E) produces secretory vesicles

Question 19

Functions of the plasmalemma include all of the following,except

Accepted Answer

A) separation of the cytoplasm from the extracellular fluid. 
B) regulation of exchange of materials with the extracellular environment. 
C) sensitivity to chemical changes in the extracellular fluid. 
D) thermal insulation. 
E) structural support. 
A) separation of the cytoplasm from the extracellular fluid. 
B) regulation of exchange of materials with the extracellular environment. 
C) sensitivity to chemical changes in the extracellular fluid. 
D) thermal insulation. 
E) structural support.

Question 20

Define osmosis.

Accepted Answer

Osmosis is the transfer of wat

Exam 3: The Cellular Level of Organization

Amino acids are transferred to the ribosome to be incorporated into a growing polypeptide chain by ________.

Many proteins in the cytosol are ________ that accelerate metabolic reactions.

Permanent alterations in a cell's DNA that affect the nucleotide sequence of one or more genes are called ________.

Ribosomes are composed of protein and ________.

In the mitochondrion,folds are to cristae as the contained fluid is to

An alternate term for tumor is

Most of the ATP required to power cellular operations is produced in the

A malignant neoplasm is often called a(n)________.

Chromosomes consist of ________ and ________.

The ________ of a membrane indicates how easy it is for substances to cross.

In ________ one substance is transported into the cell,and another is transported out.

The endoplasmic reticulum is responsible for

Peroxisomes

What would the complimentary (matching)mRNA and tRNA molecules be from a DNA molecule that has the following triplets? coding strand: ATG-CAA Template strand: TAC-GTT

The correct order of phases in cell division is:

Water molecules and small ions enter a cell through

Diffusion of a substance across the cell membrane is influenced by all of the following,except

Which of the following statements about the Golgi apparatus is false?

Functions of the plasmalemma include all of the following,except

Define osmosis.

An Introduction to Anatomy and Physiology

The Chemical Level of Organization

The Tissue Level of Organization

The Integumentary System

Osseous Tissue and Bone Structure

The Axial Skeleton

The Appendicular Skeleton

Articulations

Muscle Tissue

The Muscular System

Neural Tissue

The Spinal Cord, spinal Nerves, and Spinal Reflexes

The Brain and Cranial Nerves

Neural Integration I: Sensory Pathways and the Somatic Nervous System

Neural Integration Ii: the Autonomic Nervous System and

The Special Senses

The Endocrine System

Blood

The Heart

Blood Vessels and Circulation

The Lymphatic System and Immunity

The Respiratory System

The Digestive System

Metabolism and Energetics

The Urinary System

Fluid, electrolyte, and Acid-Base Balance

The Reproductive System

Development and Inheritance

Filters

Chromosomes consist of and .