Active Transport

Q.

Where are ion channels found in neurons?

Q. Protein pumps help in

1. simple diffusion
2. facilitated diffusion
3. active transport
4. imbibition

Q.

Most of the mineral salts in soil enter roots by the process of

1. diffusion

2. osmosis

3. active transport

4. respiration

Q. Glucose is reabsorbed from glomerular filtrate through

1. diffusion
2. active transport
3. passive transport
4. osmosis

Q. Read the following statements carefully and choose the combination with incorrect statements with respect to active transport.
I. Non-specific
II. Insensitive to inhibition
III. Transportation along the concentration gradient
IV. ATP is utilized

1. I, II, III
2. II, III, IV
3. I, III, IV
4. I, II, IV

Q. Active transport is characterized by

1. the requirement of special proteins
2. being highly selective of the molecules transported
3. the expenditure of ATP
4. all of the above

Q.

The process by which particles move from lower concentration to higher concentration is known as

1. diffusion

2. osmosis

3. active transport

4. translocation

Q.

Active transport of substances from the blood into the nephron is called _____.The movement of substances from the filtrate back into the blood in the peritubular capillaries is called _____.

1. Filtration and back flow

2. Tubular reabsorption and backflow​

3. Tubular secretion and tubular reabsorption

4. Tubular reabsorption and tubular secretion

Q. Which of the following are characteristics of a carrier protein?
I Saturation
II Specific and selective
III Regulated by hormones
IV Respond to inhibitors

1. Two
2. One
3. None
4. All

Q. Select the correct statement regarding the rules of binomial nomenclature

Q. Protein pumps help in

1. simple diffusion
2. facilitated diffusion
3. active transport
4. imbibition

Q. Rules for nomenclature are provided in

Q.

When molecules move from the area of lower concentration to the area of higher concentration and energy is used, it is called:

1. Filtration

2. Osmosis

3. Active trannsport

4. Passive transport

Q.

Assertion (A): Active transport is uphill transport.

Reason (R): Active transport uses energy to pump molecules against the concentration gradient.

1. Both A & R are true and R explains A

2. Both A & R are true and R doesn't explain A

3. A is true and R is false

4. Both A & R are false

Q. The movement of ions against the concentration gradient will be:

1. Active transport
2. Osmosis
3. Diffusion
4. All of these