Question 1

The functions of the urinary system include excretion of waste products and:

Accepted Answer

A) water balance. 
B) ovum maturation. 
C) extracellular digestion. 
D) regulation of metabolism. 
E) temperature regulation. 
A) water balance. 
B) ovum maturation. 
C) extracellular digestion. 
D) regulation of metabolism. 
E) temperature regulation.

Question 2

Your total blood volume has passed through your kidneys 5 minutes after you read this question. True or False?

Accepted Answer

A) True 
 B)False

Question 3

Briefly explain why animals that live in very dry climates have the longest loops of Henle.

Accepted Answer

The longer the loop, the great

Question 4

Which of the following correctly traces the path of urine?

Accepted Answer

A) renal pelvis → urethra → bladder → ureter 
B) renal pelvis → ureter → bladder → urethra 
C) renal pelvis → uterus → bladder → urethra 
D) renal pelvis → bladder → ureter → urethra 
E) ureter → urethra → bladder → renal pelvis 
A) renal pelvis → urethra → bladder → ureter 
B) renal pelvis → ureter → bladder → urethra 
C) renal pelvis → uterus → bladder → urethra 
D) renal pelvis → bladder → ureter → urethra 
E) ureter → urethra → bladder → renal pelvis

Question 5

Of the water that filters into the nephron, ________% is reabsorbed.

Accepted Answer

A) 25 
B) 75 
C) 85 
D) 99 
E) 100 
A) 25 
B) 75 
C) 85 
D) 99 
E) 100

Question 6

A person taking antibiotics must take pills several times each day to maintain effective concentrations in the blood. This is because of:

Accepted Answer

A) erythropoietin. 
B) tubular reabsorption. 
C) tubular secretion. 
D) a decrease in angiotensin. 
E) a decrease in antidiuretic hormone. 
A) erythropoietin. 
B) tubular reabsorption. 
C) tubular secretion. 
D) a decrease in angiotensin. 
E) a decrease in antidiuretic hormone.

Question 7

All mammals produce ________, which is a nitrogenous waste product excreted in the urine.

Accepted Answer

The answer of All mammals produce ________, which is a...

Question 8

What are the four distinct anatomical components of the mammalian urinary system?

Accepted Answer

kidney, ur

Question 9

As many men over the age of 40 know, the likelihood of developing an enlarged prostate (often called benign prostatic hyperplasia, or BPH)increases with age. An enlarged prostate is not the same as cancer, and it does not increase a man's risk for developing prostate cancer. BPH is so common that it has been said all men would have an enlarged prostate if they were to live long enough! Some of the complications of BPH are increased frequency of urination, reduced urine output, and uncontrolled "dribbling" after urination. After an enlarged prostate is surgically removed (a prostatectomy), these symptoms disappear. Based on this scenario and your knowledge of the urinary system, which of the following must be true?

Accepted Answer

A) The prostate is part of the kidney and assists in urine production. 
B) The prostate is the only gland that releases ADH, which decreases urine production. 
C) An enlarged prostate presses on the urethra and bladder, affecting urination. 
D) Prostate enlargement reduces the ability of the kidneys to filter wastes from the bloodstream. 
A) The prostate is part of the kidney and assists in urine production. 
B) The prostate is the only gland that releases ADH, which decreases urine production. 
C) An enlarged prostate presses on the urethra and bladder, affecting urination. 
D) Prostate enlargement reduces the ability of the kidneys to filter wastes from the bloodstream.

Question 10

Which of the following is not secreted into the tubule for excretion?

Accepted Answer

A) hydrogen ions 
B) potassium ions 
C) glucose 
D) drug metabolites 
E) ammonia 
A) hydrogen ions 
B) potassium ions 
C) glucose 
D) drug metabolites 
E) ammonia

Question 11

Which is the MOST correct statement about Bowman's capsule?

Accepted Answer

A) Most of the water that filters into Bowman's capsule is reabsorbed. 
B) Half of the water that filters into Bowman's capsule is reabsorbed. 
C) Most of the protein that filters into Bowman's capsule is reabsorbed. 
D) Half of the glucose that filters into Bowman's capsule is reabsorbed. 
E) None of the salts that are filtered in Bowman's capsule are reabsorbed. 
A) Most of the water that filters into Bowman's capsule is reabsorbed. 
B) Half of the water that filters into Bowman's capsule is reabsorbed. 
C) Most of the protein that filters into Bowman's capsule is reabsorbed. 
D) Half of the glucose that filters into Bowman's capsule is reabsorbed. 
E) None of the salts that are filtered in Bowman's capsule are reabsorbed.

Question 12

Most reabsorption takes place in what part of the tubule system in the kidney?

Accepted Answer

A) collecting duct 
B) Bowman's capsule 
C) proximal tubule 
D) loop of Henle 
E) distal tubule 
A) collecting duct 
B) Bowman's capsule 
C) proximal tubule 
D) loop of Henle 
E) distal tubule

Question 13

An animal that has very long loops of Henle probably lives in a ________ environment.

Accepted Answer

A) rainforest 
B) seasonally wet 
C) desert 
D) saltwater 
E) freshwater 
A) rainforest 
B) seasonally wet 
C) desert 
D) saltwater 
E) freshwater

Question 14

Since there is a high concentration of salt in the extracellular fluid around the bottom of the loop of Henle, what happens to water in this area?

Accepted Answer

It flows by osmosis

Question 15

Which structure collects filtrate from the blood?

Accepted Answer

A) glomerulus 
B) Bowman's capsule 
C) proximal tubule 
D) loop of Henle 
E) distal tubule 
A) glomerulus 
B) Bowman's capsule 
C) proximal tubule 
D) loop of Henle 
E) distal tubule

Question 16

Nephridia are found in:

Accepted Answer

A) flatworms. 
B) earthworms. 
C) reptiles. 
D) arthropods. 
E) birds. 
A) flatworms. 
B) earthworms. 
C) reptiles. 
D) arthropods. 
E) birds.

Question 17

Where does the highest rate of tubular reabsorption occur?

Accepted Answer

in the pro

Question 18

Which of the following is closest to the external surface of the kidney?

Accepted Answer

A) pelvis 
B) renal cortex 
C) medulla 
D) smooth muscle 
E) glomerulus 
A) pelvis 
B) renal cortex 
C) medulla 
D) smooth muscle 
E) glomerulus

Question 19

Cellular wastes in an earthworm's coelomic fluid are excreted to the external environment by means of a:

Accepted Answer

A) ureter. 
B) urethra. 
C) nephridiopore. 
D) nephron. 
E) nephrostome. 
A) ureter. 
B) urethra. 
C) nephridiopore. 
D) nephron. 
E) nephrostome.

Question 20

Erythropoietin is released in response to low ________ levels.

Accepted Answer

The answer of Erythropoietin is released in response to low...

Exam 35: The Urinary System

The functions of the urinary system include excretion of waste products and:

Your total blood volume has passed through your kidneys 5 minutes after you read this question. True or False?

Briefly explain why animals that live in very dry climates have the longest loops of Henle.

Which of the following correctly traces the path of urine?

Of the water that filters into the nephron, ________% is reabsorbed.

A person taking antibiotics must take pills several times each day to maintain effective concentrations in the blood. This is because of:

All mammals produce ________, which is a nitrogenous waste product excreted in the urine.

What are the four distinct anatomical components of the mammalian urinary system?

Which of the following is not secreted into the tubule for excretion?

Which is the MOST correct statement about Bowman's capsule?

Most reabsorption takes place in what part of the tubule system in the kidney?

An animal that has very long loops of Henle probably lives in a ________ environment.

Since there is a high concentration of salt in the extracellular fluid around the bottom of the loop of Henle, what happens to water in this area?

Which structure collects filtrate from the blood?

Nephridia are found in:

Where does the highest rate of tubular reabsorption occur?

Which of the following is closest to the external surface of the kidney?

Cellular wastes in an earthworm's coelomic fluid are excreted to the external environment by means of a:

Erythropoietin is released in response to low ________ levels.

An Introduction to Life on Earth

Atoms, Molecules, and Life

Biological Molecules

Cell Structure and Function

Cell Membrane Structure and Function

Energy Flow in the Life of a Cell

Capturing Solar Energy: Photosynthesis

Harvesting Energy: Glycolysis and Cellular Respiration

The Continuity of Life: Cellular Reproduction

Patterns of Inheritance

Dna: the Molecule of Heredity

Gene Expression and Regulation

Biotechnology

Principles of Evolution

How Populations Evolve

The Origin of Species

The History of Life

Systematics: Seeking Order Amidst Diversity

The Diversity of Prokaryotes and Viruses

The Diversity of Protists

The Diversity of Plants

The Diversity of Fungi

Animal Diversity I: Invertebrates

Animal Diversity Ii: Vertebrates

Animal Behavior

Population Growth and Regulation

Community Interactions

How Do Ecosystems Work

Earths Diverse Ecosystems

Conserving Earths Biodiversity

Homeostasis and the Organization of the Animal Body

Circulation

Respiration

Nutrition and Digestion

Defenses Against Disease

Chemical Control of the Animal Body: the Endocrine System

The Nervous System

The Senses

Action and Support: the Muscles and Skeleton

Animal Reproduction

Animal Development

Plant Anatomy and Nutrient Transport

Plant Reproduction and Development

Plant Responses to the Environment

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