Question 1

Briefly describe the driving force for the movement of water across plasma membranes.

Accepted Answer

The answer of Briefly describe the driving force for the...

Question 2

Which of the following represents a receptor?

Accepted Answer

A) A 
B) B 
C) C 
D) D 
E) E 
A) A 
B) B 
C) C 
D) D 
E) E

Question 3

This organelle is responsible for synthesis of steroids,phospholipids and functions as a reservoir for Ca2+?

Accepted Answer

A) mitochondrion 
B) secretory vesicle 
C) smooth endoplasmic reticulum 
D) rough endoplasmic reticulum 
E) lysosome 
A) mitochondrion 
B) secretory vesicle 
C) smooth endoplasmic reticulum 
D) rough endoplasmic reticulum 
E) lysosome

Question 4

Which of the following transport process uses vesicles formed at the plasma membrane to take up extracellular substances and import them into the cell?

Accepted Answer

A) endocytosis 
B) exocytosis 
C) facilitated diffusion 
D) osmosis 
E) Both endocytosis and exocytosis. 
A) endocytosis 
B) exocytosis 
C) facilitated diffusion 
D) osmosis 
E) Both endocytosis and exocytosis.

Question 5

Which of the following is NOT a characteristic of the cytosol?

Accepted Answer

A) primarily consists of water 
B) cation of electron transport chain carrier proteins 
C) site of many important chemical reactions 
D) often contains aggregates of triglycerides that form lipid droplets 
E) contains the enzymes of glycolysis 
A) primarily consists of water 
B) cation of electron transport chain carrier proteins 
C) site of many important chemical reactions 
D) often contains aggregates of triglycerides that form lipid droplets 
E) contains the enzymes of glycolysis

Question 6

___________ is an increase in the size of cells without cell division.

Accepted Answer

A) Hyperplasia 
B) Metaplasia 
C) Atrophy 
D) Dysplasia 
E) Hypertrophy 
A) Hyperplasia 
B) Metaplasia 
C) Atrophy 
D) Dysplasia 
E) Hypertrophy

Question 7

Which of the following membrane-enclosed organelles is the site of synthesis of membrane proteins and secretory proteins?

Accepted Answer

A) rough endoplasmic reticulum 
B) smooth endoplasmic reticulum 
C) nucleus 
D) centrosome 
E) Golgi complex 
A) rough endoplasmic reticulum 
B) smooth endoplasmic reticulum 
C) nucleus 
D) centrosome 
E) Golgi complex

Question 8

In the diagram,which panel shows the kinetochore of the centromeres aligning along the center of the mitotic spindle of the cell?

Accepted Answer

A) A 
B) B 
C) C 
D) D 
E) E 
A) A 
B) B 
C) C 
D) D 
E) E

Question 9

The three main components of the lipid bilayer portion of a plasma membrane are

Accepted Answer

A) phospholipids,glycoproteins,and water. 
B) proteins,cholesterol,and fatty acids. 
C) cholesterol,triglycerides,and glycolipids. 
D) phospholipids,cholesterol,and glycolipids. 
E) phospholipids,cholesterol,and proteins. 
A) phospholipids,glycoproteins,and water. 
B) proteins,cholesterol,and fatty acids. 
C) cholesterol,triglycerides,and glycolipids. 
D) phospholipids,cholesterol,and glycolipids. 
E) phospholipids,cholesterol,and proteins.

Question 10

During phagocytosis,binding of a particle to a plasma membrane receptor triggers formation of ________,which are extensions of the plasma membrane of the phagocyte that eventually surround the particle forming a phagosome.

Accepted Answer

A) podocytes 
B) exterior vesicles 
C) interior vesicles 
D) pseudopods 
E) lysosomes 
A) podocytes 
B) exterior vesicles 
C) interior vesicles 
D) pseudopods 
E) lysosomes

Question 11

What transport process uses the energy stored in a Na+ or H+ concentration gradient to drive other substances across the membrane against their own concentration gradients?

Accepted Answer

A) primary active transport 
B) secondary active transport 
C) facilitated diffusion 
D) passive diffusion 
E) osmosis 
A) primary active transport 
B) secondary active transport 
C) facilitated diffusion 
D) passive diffusion 
E) osmosis

Question 12

Compare mitosis to meiosis.

Accepted Answer

The answer of Compare mitosis to meiosis....

Question 13

Which of the following protects the contents of the nucleus?

Accepted Answer

A) nucleic acids 
B) nuclear membrane 
C) centrosome 
D) cilia 
E) Golgi complex 
A) nucleic acids 
B) nuclear membrane 
C) centrosome 
D) cilia 
E) Golgi complex

Question 14

List the steps involved in receptor-mediated endocytosis.

Accepted Answer

The answer of List the steps involved in receptor-mediated endocytosis....

Question 15

How long does the G₂ phase normally last?

Accepted Answer

A) 8 to 10 hours 
B) 4 to 6 hours 
C) 2 to 4 hours 
D) 24 hours 
E) 1 to 2 days 
A) 8 to 10 hours 
B) 4 to 6 hours 
C) 2 to 4 hours 
D) 24 hours 
E) 1 to 2 days

Question 16

A patient would be infused with a _______ solution in order to ultimately relieve excess interstitial fluid in the brain.

Accepted Answer

A) tonicity 
B) isotonic 
C) hypertonic 
D) hemolytic 
E) hypotonic 
A) tonicity 
B) isotonic 
C) hypertonic 
D) hemolytic 
E) hypotonic

Question 17

Which of the following transport processes uses vesicles that fuse with the plasma membrane to secrete materials into the extracellular fluid?

Accepted Answer

A) endocytosis 
B) exocytosis 
C) facilitated diffusion 
D) osmosis 
E) Both endocytosis and exocytosis. 
A) endocytosis 
B) exocytosis 
C) facilitated diffusion 
D) osmosis 
E) Both endocytosis and exocytosis.

Question 18

This is a measure of a solution's ability to change the volume of cells by altering their water content.

Accepted Answer

A) filtration 
B) normality 
C) tonicity 
D) equivalency 
E) facilitation 
A) filtration 
B) normality 
C) tonicity 
D) equivalency 
E) facilitation

Question 19

In the diagram,which panel shows events occurring during anaphase?

Accepted Answer

A) A 
B) B 
C) C 
D) D 
E) E 
A) A 
B) B 
C) C 
D) D 
E) E

Question 20

Which of the following represents a linker?

Accepted Answer

A) A 
B) B 
C) C 
D) D 
E) E 
A) A 
B) B 
C) C 
D) D 
E) E

Exam 3: The Cellular Level of Organization

Briefly describe the driving force for the movement of water across plasma membranes.

Which of the following represents a receptor?

This organelle is responsible for synthesis of steroids,phospholipids and functions as a reservoir for Ca2+?

Which of the following transport process uses vesicles formed at the plasma membrane to take up extracellular substances and import them into the cell?

Which of the following is NOT a characteristic of the cytosol?

___________ is an increase in the size of cells without cell division.

Which of the following membrane-enclosed organelles is the site of synthesis of membrane proteins and secretory proteins?

In the diagram,which panel shows the kinetochore of the centromeres aligning along the center of the mitotic spindle of the cell?

The three main components of the lipid bilayer portion of a plasma membrane are

During phagocytosis,binding of a particle to a plasma membrane receptor triggers formation of ________,which are extensions of the plasma membrane of the phagocyte that eventually surround the particle forming a phagosome.

What transport process uses the energy stored in a Na+ or H+ concentration gradient to drive other substances across the membrane against their own concentration gradients?

Compare mitosis to meiosis.

Which of the following protects the contents of the nucleus?

List the steps involved in receptor-mediated endocytosis.

How long does the G₂ phase normally last?

A patient would be infused with a _______ solution in order to ultimately relieve excess interstitial fluid in the brain.

Which of the following transport processes uses vesicles that fuse with the plasma membrane to secrete materials into the extracellular fluid?

This is a measure of a solution's ability to change the volume of cells by altering their water content.

In the diagram,which panel shows events occurring during anaphase?

Which of the following represents a linker?

An Introduction to the Human Body

The Chemical Level of Organization

The Tissue Level of Organization

The Integumentary System

The Skeletal System: Bone Tissue

The Skeletal System: The Axial Skeleton

The Skeletal System: The Appendicular Skeleton

Joints

Muscle Tissue

The Muscular System

Nervous Tissue

The Spinal Cord and Spinal Nerves

The Brain and Cranial Nerves

The Autonomic Nervous System

Sensory, Motor and Integrative Systems

The Special Senses

The Endocrine System

The Cardiovascular System: The Blood

The Cardiovascular System: The Heart

The Cardiovascular System: Blood Vessels and Hemodynamics

The Lymphatic System, Nonspecific Resistance to Disease, and Immunity

The Digestive System

Metabolism

The Urinary System

The Reproductive Systems

Development and Inheritance

Filters