Kidneys

Q.

Name the largest artery in the human body?

Q.

What are the constituents of normal urine?

Q.

Name some common excretory organs in animals.

Q. The basic functional unit of the human kidney is known as:

1. Nephridia
2. Henle’s Loop
3. Nephron
4. Pyramid

Q.

Ammonia is converted into urea in one of the following organs

1. Pancreas

2. Liver

3. Kidney

4. Stomach

Q.

The formation of urea occurs in the

1. Stomach

2. Kidney

3. Liver

4. Pancreas

Q. Question 2 (vii)
Fill in the blanks.
(vii) Kidneys eliminate the waste materials in the liquid form called ___.

Q.

Urea is produced in kidneys.

1. True
2. False

Q. Draw a diagram of the human excretory system and label the various parts.

Q. Glomerular filtration is possible because

1. Afferent arteriole has less diameter than the efferent arteriole
2. Both have the same diameter
3. Afferent capillaries have more diameter than efferent capillaries.
4. Afferent arteriole has more diameter than the efferent arteriole

Q.

Animals do NOT excrete waste in which of the following forms?

1. Uric acid

2. Urea

3. Hydrochloric acid

4. Ammonia

Q. Answer the follwoing questions: [5 MARKS]

1.Where is urine formed?
2. Where is urine stored?
3. Which part of the excretory system is responsible for the transport of urine from the kidneys to the bladder?
4. What is the normal composition of urine?
5. What is the major excretory product in humans?

Q.

Given below is the excretory system in humans. Identify the labelled parts.

1. 

2. 

3. 

4. 

Q. Which of the following are parts of the excretory system?

1. Large intestine
2. Small intestine
3. Urinary bladder
4. Kidneys

Q.

Which are the specific structures involved in the filtration of blood in the kidney?​

1. Blood capillaries

2. Ureter

3. Blood vessels

4. Uterus

Q. Any two disorder connected to kidney

Q.

The organ(s) responsible for filtering nitrogenous wastes and excess fluid from the blood is/are _______ .

1. kidneys

2. heart
3. stomach
4. lungs

Q. Aorta is the largest artery in the body. The blood leaving the aorta is rich in ________.

1. carbon dioxide
2. oxygen
3. carbon monoxide
4. calcium

Q.

Ammonia is converted into urea in

1. Liver

2. Kidney

3. Ureters

4. Stomach

Q.

How does a nephron filter blood?

Q.

What is the act of passing out urine called?

Q.

The tuft of the capillaries inside the bowmans capsule.

Q.

Highest organic constituent of urine.

Q.

Given below is the excretory system in humans. Identify the labelled parts.

1. $\begin{array}{c}Key\\ \#\mid Ureter\\ \&\mid Urinarybladder\\ \$\mid Kidney\\ @\mid Urethra\end{array}$

2. $\begin{array}{c}Key\\ \#\mid Urethra\\ \&\mid Kidney\\ \$\mid urinarybladder\\ @\mid Ureter\end{array}$

3. $\begin{array}{c}Key\\ \#\mid Kidney\\ \&\mid Urinaryblader\\ \$\mid Ureter\\ @\mid Urethra\end{array}$

4. $\begin{array}{c}Key\\ \#\mid Kidney\\ \&\mid Ureter\\ \$\mid Urinarybladder\\ @\mid Urethra\end{array}$

Q.

What is egestion? Is it similar to excretion. [2 MARKS]

Q. Where is blood filtered in our body?

1. Kidneys
2. Lungs
3. Liver
4. Heart

Q.

Which one of the following organ performs just one function?

1. Kidney

2. Liver

3. Heart

4. Skin

Q. What is the function of the nephron?

Q. Match the following:

1. Kidneys	(a) Air
2. Heart	(b) Food
3. Lungs	(c) Blood
4. Stomach	(d) Wastes

1. 1 - a, 2 - c, 3 - d, 4 - d
2. 1- d, 2 - c, 3 - a, 4 - b
3. 1 - c, 2 - d, 3 - b, 4 - a
4. 1 - d, 2 - c, 3 - b, 4 - a

Q. What will happen to a person with one kidney?

1. Urea will go on accumulating on blood
2. He will die due to blood poisoning
3. He will still survive and remain normal
4. Urination will stop