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The Excretory system

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Chapter 30.4 The Excretory System

Chapter 30.4 The Excretory System

Question 1 of 26

1

The excretory system includes the skin, lungs, liver and kidneys and excretes metabolic wastes from the body.

Select one of the following:

  • True
  • False

Explanation

Question 2 of 26

1

What are the parts of the excretory system?

Select one or more of the following:

  • The skin, lungs and kidneys

  • The kidneys, stomach and lungs

  • The skin, lungs, liver and kidneys

Explanation

Question 3 of 26

1

What is the role of the skin in excretion?

Select one or more of the following:

  • Excretes excess water

  • Excretes salt

  • Excretes a small amount of urea in sweat

  • All of the above

Explanation

Question 4 of 26

1

The lungs excrete carbon dioxide and small amounts of water vapor.

Select one of the following:

  • True
  • False

Explanation

Question 5 of 26

1

The liver converts potentially dangerous nitrogen wastes, a product of protein breakdown , into less toxic urea.

Select one of the following:

  • True
  • False

Explanation

Question 6 of 26

1

The kidneys are a pair of fist sized organs located on either side of the spinal column near the lower back.

Select one of the following:

  • True
  • False

Explanation

Question 7 of 26

1

The kidneys produce and excrete a waste product known as urine.

Select one of the following:

  • True
  • False

Explanation

Question 8 of 26

1

These transport urine from the kidneys to the urinary bladder.

Select one or more of the following:

  • Bladder

  • Ureters

  • Urethra

Explanation

Question 9 of 26

1

The urinary bladder is where the urine is stored

Select one of the following:

  • True
  • False

Explanation

Question 10 of 26

1

Urine is released through the urethra.

Select one of the following:

  • True
  • False

Explanation

Question 11 of 26

1

A waste laden blood enters the kidney through the renal artery, the kidney removes urea, excess water and minerals and other waste products

Select one of the following:

  • True
  • False

Explanation

Question 12 of 26

1

Nephrons are the individual processing units in the kidneys that do most of the work

Select one of the following:

  • True
  • False

Explanation

Question 13 of 26

1

Blood purification in the kidneys is a complex process and involves

Select one or more of the following:

  • Filtration

  • Filtration and reabsorption

Explanation

Question 14 of 26

1

Filtration is the passing of a liquid or a gas through a filter to remove wastes.

Select one of the following:

  • True
  • False

Explanation

Question 15 of 26

1

A glomerulus is..

Select one or more of the following:

  • A small but dense network of capillaries or very small blood vessels encases in the upper end of each nephron

  • Bowman's capsule

  • Nephron

Explanation

Question 16 of 26

1

Bowman's capsule is a hollo, cup shaped structure that encases the glomerulus

Select one of the following:

  • True
  • False

Explanation

Question 17 of 26

1

The material that is filtered from the blood is called

Select one or more of the following:

  • Nephron

  • Glomerulus

  • Bowman's capsule

  • Filtrate

Explanation

Question 18 of 26

1

Nearly all the material that moves into Bowman's capsule makes its way back into the blood.

Select one of the following:

  • True
  • False

Explanation

Question 19 of 26

1

The process by which water and dissolved substances are taken back into the blood is called

Select one or more of the following:

  • Filtration

  • Reabsorption

Explanation

Question 20 of 26

1

The kidneys first throw away everything and then takes back only what the body needs.

Select one of the following:

  • True
  • False

Explanation

Question 21 of 26

1

A section of the nephron tubule is called the loop of Henle and its job is to conserve water

Select one of the following:

  • True
  • False

Explanation

Question 22 of 26

1

The waste material now called urine that remains in the tubule is emptied into a collecting duct and from there the urine flows to the ureter of each kidney.

Select one of the following:

  • True
  • False

Explanation

Question 23 of 26

1

The ureters carry urine to the urinary bladder for storage until the urine leaves the body through the urethra.

Select one of the following:

  • True
  • False

Explanation

Question 24 of 26

1

The kidneys play an important role in maintaining homeostasis.

Select one of the following:

  • True
  • False

Explanation

Question 25 of 26

1

The kidneys

Select one or more of the following:

  • Respond directly to the composition of the blood

  • Are influenced by the endocrine system

  • None of the above

  • All of the above

Explanation

Question 26 of 26

1

Problems with the kidneys include

Select one or more of the following:

  • Kidney stones

  • Kidney damage

  • Kidney failure

  • All of the above

Explanation

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