Other Forms of Excretion

Q.

How does excretion occur in human beings?

Q. Bilirubin is excreted along with

1. Urine
2. Faeces
3. Sweat
4. Vitamins
   

Q.

Match the following organs/components with the elements which they help in excreting:
$\begin{array}{cc}\text{Column I}& \text{Column II}\\ \text{i. Lungs}& \text{a. Low amount of nitrogenous waste}\\ \text{ii. Sebaceous secretion}& \text{b. Sodium chloride and lactic acid}\\ \text{iii. Sweat}& \text{c. Hydrocarbons, sterols and waxes}\\ \text{iv. Saliva}& \text{d. Carbon dioxide}\end{array}$

1. i $\Rightarrow$ a, ii $\Rightarrow$ c, iii $\Rightarrow$ b, iv $\Rightarrow$ d

2. i $\Rightarrow$ d, ii $\Rightarrow$ c, iii $\Rightarrow$ b, iv $\Rightarrow$ a

3. i $\Rightarrow$ b, ii $\Rightarrow$ c, iii $\Rightarrow$ d, iv $\Rightarrow$ a

4. i $\Rightarrow$ a, ii $\Rightarrow$ d, iii $\Rightarrow$ b, iv $\Rightarrow$ c

Q.

Accessory excretory organs

Q. is another type of excretion other than micturition.

1. Bleeding
2. Vomitting
3. Sneezing
4. Sweating

Q.

How is sweat useful for us?

1. Removal of lactic acid
2. Removal of Sodium chloride
3. Helps us cool down
4. All of the above