Excretion

Q.

What is respiration? Give a balanced equation for aerobic respiration.

Q.

What Is the Advantage of Anaerobic Respiration?

Q.

Name the largest gland in our body?

Q.

Why respiration is called catabolic process?

Q. The process involving oxidation of food to release energy is known as .

1. circulation
2. respiration
3. breathing

Q.

What substances can the stomach absorb?

Q.

Breaking down of large globules of fat into smaller ones is brought about by:

1. Bile salts
2. Pepsin
3. Intestinal Juice
4. Hydrochloric acid

Q.

What is urethra?

Q. Which of the following is not secreted​ by the stomach during digestion?​

1. Pepsinogen
2. HCI
3. Trypsin
4. Mucus

Q.

Read the following statements regarding the small intestine and identify the correct and incorrect statement(s).

A. It has integral parts like jejunum, ileum and duodenum, in this order.

B. The major part of digestion and absorption is carried out by the small intestine.

1. Both A and B are Correct

2. Both A and B are Incorrect

3. B is Correct and A is Incorrect

4. A is Correct and B is Incorrect

Q.

Stomach is the site of digestion mainly of

1. Carbohydrate

2. Fats

3. Proteins

4. All of these

Q.

Why is urethra called the urino-genital tube?

Q.

Birds excrete out semisolid white urine which consists of ————— and —————.

Q. Bile helps in digestion of ________.

1. starch

2. fats

3. proteins

4. calcium

Q. Select the option that best fills the missing gaps about inhalation and exhalation.

	Inhalation	Exhalation
Diaphragm	(A)	(B)
Intrapulmonary volume	(C)	Decreases
Intrapulmonary pressure​	Decreases	(D)

1. (A) Contracts, (B) Relaxes, (C) Increases, (D) Increases
2. (A) Relaxes, (B) Contracts, (C) Decreases, (D) Increases
3. (A) Relaxes, (B) Contracts, (C) Increases, (D) Increases
4. (A) Contracts, (B) Contracts, (C) Increases, (D) Decreases

Q.

Pepsin is produced by _____.

Q. The following diagram refers to an apparatus which is used to demonstrate a physiological process:​ (a)What is the purpose of keeping potassium hydroxide solution in the test tubes X and Y?​

Q. Name the final product/products obtained in the anaerobic? respiration, if it takes place:
(a) in a plant (like yeast).
(b) in an animal tissue (like muscles).

Q.

The muscular tube through which stored urine is passed out of the body is called ____. Explain.

(a) kidney

(b) ureter

(c) urethra

(d) urinary bladder

Q. Ammonia is converted to urea in the liver.

1. True
2. False

Q. Select the option that best fills the missing gaps about digestion by pancreatic enzymes​
$\begin{array}{ccc}\text{Substrate}& \text{Enzyme}& \text{Product}\\ \text{Proteins}& Trypsin& \text{(A).....}\\ \text{Starch}& \text{(B).....}& \text{Maltose}\\ \text{Fats}& \text{Pancreatic lipase}& \text{(C).....}\end{array}$

1. (A) Glucose, (B) Pepsin, (C) Glycerol + fatty acids
2. (A) Amino acids, (B) Bile juice, (C) Fat droplets
3. 
   (A) Peptides, (B) Pancreatic amylase, (C) Glycerol + fatty acids
4. (A) Peptides, (B) Bile juice (C) Glucose

Q.

Raphides are excretory materials of-

1. Porifera

2. Plant

3. Cnidaria

4. All of these

Q. What is the defination of Anaerobic Respiration.

Q. Lacteal present in the villi of the small intestine:

1. Help to absorb proteins
2. Help to absorb fatty acids and glycerol
3. Secrete hormones
4. Secrete enzymes for digestion

Q. Main excretory organs in a frog are

1. Kidneys
2. Skin
3. Lungs
4. Malpighian tubules

Q.

Does the stomach digest rrotein?

Q. Sweat contains

1. Sodium chloride
2. Water
3. All of the above
4. Urea

Q. Excretion maintains a stable internal environment in an organism.

1. True
2. False

Q. Kidneys are placed on either side of the vertebral column.

1. False
2. True

Q. __________ helps in removal of small amounts of water, urea and salts in the form of sweat.

1. Eyes
2. Skin
3. Lungs
4. Mouth