Question 1

A protein that spans the cell membrane is termed a(n)

Accepted Answer

A) receptor protein. 
B) integral protein. 
C) peripheral protein. 
D) anchoring protein. 
A) receptor protein. 
B) integral protein. 
C) peripheral protein. 
D) anchoring protein.

Question 2

Cytoplasm is located between the cell membrane and the nuclear envelope.

Accepted Answer

A) True 
 B)False

Question 3

In phagocytosis

Accepted Answer

A) a cell membrane engulfs solid particles. 
B) a particle enters a cell by moving down its concentration gradient. 
C) a cell membrane engulfs droplets. 
D) a carrier molecule moves a substance across a cell membrane using ATP. 
A) a cell membrane engulfs solid particles. 
B) a particle enters a cell by moving down its concentration gradient. 
C) a cell membrane engulfs droplets. 
D) a carrier molecule moves a substance across a cell membrane using ATP.

Question 4

During metaphase of mitosis, chromosomes first condense and become visible when stained and viewed under a microscope.

Accepted Answer

A) True 
 B)False

Question 5

Which of the following describes a lysosome?

Accepted Answer

A) A double-membraned organelle that is the "powerhouse" of the cell 
B) A complex network of interconnected membranes that is a communication system in the cell 
C) A tiny, membranous sac that contains enzymes that degrade worn cell parts and debris 
D) A nonmembranous structure that is essential for mitosis 
A) A double-membraned organelle that is the "powerhouse" of the cell 
B) A complex network of interconnected membranes that is a communication system in the cell 
C) A tiny, membranous sac that contains enzymes that degrade worn cell parts and debris 
D) A nonmembranous structure that is essential for mitosis

Question 6

A stem cell divides to give rise to two differentiated cells.

Accepted Answer

A) True 
 B)False

Question 7

The structures in the nucleus that serve as a "mitotic clock" are

Accepted Answer

A) telomeres. 
B) kinases. 
C) ribosomes. 
D) hormones. 
A) telomeres. 
B) kinases. 
C) ribosomes. 
D) hormones.

Question 8

Molecules bind to receptor sites and are enclosed in vesicles in the process of

Accepted Answer

A) pinocytosis. 
B) phagocytosis. 
C) receptor-mediated endocytosis. 
D) exocytosis. 
A) pinocytosis. 
B) phagocytosis. 
C) receptor-mediated endocytosis. 
D) exocytosis.

Question 9

Cells are placed in a solution that causes them to absorb liquid until they burst. When more water is removed from the solution, newly added cells do not burst. The original solutions was ________ , while the second was ________ to the cells.

Accepted Answer

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

Question 10

DNA molecules are in the nucleus

Accepted Answer

A) as free molecules. 
B) complexed with protein, forming chromatin fibers. 
C) complexed with protein, forming nucleoli. 
D) complexed with protein on the nuclear envelope. 
A) as free molecules. 
B) complexed with protein, forming chromatin fibers. 
C) complexed with protein, forming nucleoli. 
D) complexed with protein on the nuclear envelope.

Question 11

The Golgi apparatus and endoplasmic reticulum take part in secretion.

Accepted Answer

A) True 
 B)False

Question 12

The nucleolus contains

Accepted Answer

A) DNA only. 
B) RNA and protein. 
C) DNA and protein. 
D) RNA only. 
A) DNA only. 
B) RNA and protein. 
C) DNA and protein. 
D) RNA only.

Question 13

About how many cells constitute the body of an adult?

Accepted Answer

A) 50 to 100 million 
B) 50 to 100 billion 
C) 50 to 100 trillion 
D) 50 to 100 quadrillion 
A) 50 to 100 million 
B) 50 to 100 billion 
C) 50 to 100 trillion 
D) 50 to 100 quadrillion

Question 14

All cell types can divide a limitless number of times.

Accepted Answer

A) True 
 B)False

Question 15

The defining characteristic of a stem cell is

Accepted Answer

A) self-repair. 
B) self-renewal. 
C) the ability to turn into a cancer cell. 
D) origin from a progenitor cell. 
A) self-repair. 
B) self-renewal. 
C) the ability to turn into a cancer cell. 
D) origin from a progenitor cell.

Question 16

Cell division consists of mitosis and cell differentiation.

Accepted Answer

A) True 
 B)False

Question 17

Bone cells and muscle cells differ in structure and function because

Accepted Answer

A) each expresses a different subset of genes. 
B) each has different genes. 
C) each has different chromosomes. 
D) they express the same subset of genes. 
A) each expresses a different subset of genes. 
B) each has different genes. 
C) each has different chromosomes. 
D) they express the same subset of genes.

Question 18

Solutions that have a higher osmotic pressure than body fluids are ________.

Accepted Answer

The answer of Solutions that have a higher osmotic pressure...

Question 19

If a human cell has 23 chromosomes, it likely just finished

Accepted Answer

A) mitosis. 
B) meiosis. 
C) cytokinesis. 
D) osmosis. 
A) mitosis. 
B) meiosis. 
C) cytokinesis. 
D) osmosis.

Question 20

Programmed cell death occurs during development, including the removal of webbing between fingers of the fetus. This process is known as

Accepted Answer

A) cell specialization. 
B) apoptosis. 
C) mitosis. 
D) cell differentiation. 
A) cell specialization. 
B) apoptosis. 
C) mitosis. 
D) cell differentiation.

Exam 3: Cells

A protein that spans the cell membrane is termed a(n)

Cytoplasm is located between the cell membrane and the nuclear envelope.

In phagocytosis

During metaphase of mitosis, chromosomes first condense and become visible when stained and viewed under a microscope.

Which of the following describes a lysosome?

A stem cell divides to give rise to two differentiated cells.

The structures in the nucleus that serve as a "mitotic clock" are

Molecules bind to receptor sites and are enclosed in vesicles in the process of

Cells are placed in a solution that causes them to absorb liquid until they burst. When more water is removed from the solution, newly added cells do not burst. The original solutions was ________ , while the second was ________ to the cells.

DNA molecules are in the nucleus

The Golgi apparatus and endoplasmic reticulum take part in secretion.

The nucleolus contains

About how many cells constitute the body of an adult?

All cell types can divide a limitless number of times.

The defining characteristic of a stem cell is

Cell division consists of mitosis and cell differentiation.

Bone cells and muscle cells differ in structure and function because

Solutions that have a higher osmotic pressure than body fluids are ________.

If a human cell has 23 chromosomes, it likely just finished

Programmed cell death occurs during development, including the removal of webbing between fingers of the fetus. This process is known as

Introduction to Human Anatomy and Physiology

Chemical Basis of Life

Cellular Metabolism

Tissues

Integumentary System

Skeletal System

Joints of the Skeletal System

Muscular System

Nervous System I: Basic Structure and Function

Nervous System II: Divisions of the Nervous System

Nervous System III: Senses

Endocrine System

Blood

Cardiovascular System

Lymphatic System and Immunity

Digestive System

Nutrition and Metabolism

Respiratory System

Urinary System

Water, Electrolyte, and Acid-Base Balance

Reproductive Systems

Pregnancy, Growth, and Development

Genetics and Genomics

Filters

Cells are placed in a solution that causes them to absorb liquid until they burst. When more water is removed from the solution, newly added cells do not burst. The original solutions was , while the second was to the cells.