Nephron

Q.

The diagram shows the outline of the human excretory system.

Identify X and it's function.

1. Urethra; To excrete urea

2. Nephron; To produce urea

3. Ureters; To produce urine

4. Urinary bladder; To store urine

Q.

Match the following:

$$\begin{array}{cc}\text{Coloumn1}& \text{Coloumn2}\\ \text{1. Carbon dioxide is removed from the blood in this organ}& \text{i) Kidneys}\\ \text{2. Nitrogenous waste is removed from the blood in this organ}& \text{ii) Nephrons}\\ \text{3. Filtration units present in the kidney}& \text{iii) Lungs}\end{array}$$

1. 1-ii, 2-iii, 3-i

2. 1-iii, 2-i, 3-ii

3. 1-iii, 2-ii, 3-i

4. 1-i, 2-iii, 3-ii

Q. Synthesis of urea takes place in:

1. Pancreas
2. Liver
3. Small intestine
4. Kidney

Q. Synthesis of urea takes place in:

1. Pancreas
2. Liver
3. Small intestine
4. Kidney

Q. The fluid part of the blood is known as

1. RBC
2. None of the above
3. Plasma
4. WBC

Q. State whether the following statements are true or false:
Statement 1: The urine consists of 95% urea and 5% water.
Statement 2: An adult human normally passes 3L of urine per day.

1. Statement 1: True; Statement 2: True
2. Statement 1: False; Statement 2: False
3. Statement 1: False; Statement 2: True
4. Statement 1: True; Statement 2: False

Q. The function of kidney is to filter:

1. Blood
2. Plasma
3. Lymph
4. Urine

Q. Who am I?​

• I am the major excretory organ in the body​
• I filter excess urea, water and salts in the blood ​
• I expel waste in the form of urine