Mechanism of Breathing

Q. The energy of ATP is released when the bonds between the _______ groups are broken.

1. ribose
2. nitrogen
3. adenine
4. phosphate

Q.

During expiration the diaphragm becomes

1. Oblique

2. Dome-shaped

3. Bulging

4. Flattened

Q.

Why we breathe oxygen while plants breathe carbon dioxide?

Q.

The figure shows the process of inhalation.
Write the changes that occur in these parts during exhalation

Q.

Statement I:Breathing through mouth is not recommended.

Statement II: It is because mouth doesn't have any filter mechanism like nostrils to filter dust from air while breathing.

1. Statement I is True and Statement II is the correct explanation.

2. Statement I is True and Statement II is not the correct explanation.

3. Statement I is True and Statement II is False

4. Statement I is False and statement II is True.

Q.

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

$\begin{array}{ccc}& \text{Inhalation}& \text{Exhalation}\\ \text{Diaphragm}& \text{---(A)---}& \text{---(B)---}\\ \text{Intrapulmonary volume}& \text{---(C)---}& \text{Decreases}\\ \text{Intrapulmonary pressure}& \text{Decreases}& \text{---(D)---}\end{array}$

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) Relaxes, (C) Increases, (D) Decreases

Q. Inspiration takes place during

1. Inhalation
2. Exhalation
3. Both A and B
4. None of the above

Q.

Of which of the following processes is breathing a part?

1. Respiration

2. Photosynthesis

3. Excretion

4. Digestion

Q. A person sleeping under a tree during night time feels lethargic when he wakes up in the morning. What is the reason behind the same?