Respiration

Q. Mutual attraction between water molecules is known as

1. adhesion
2. cohesion
3. adelphy
4. imbibition

Q.

Define anaerobic respiration.

Q. Mechanism of breathing vary among different groups of animals depending mainly on their

a. Habits
b. Habitats
c. Levels of organisation
d. Demand of situation

Q.

What happens to the respiratory process in a man going up a hill?

Q. Which one of the following statements is NOT CORRECT?

1. Respiration is the process of the exchange of gases between the lungs and the atmosphere
2. Breathing is an extracellular process
3. Energy is used in the process of breathing
4. Several enzymes are involved in the process of respiration

Q.

The exchange of gases between inhaled air and blood is referred to as ______.

1. Cellular respiration

2. External respiration

3. Internal respiration

4. Circulatory respiration

Q. In animal cells, like muscles during exercise, when oxygen is inadequate for cellular respiration pyruvic acid is reduced to lactic acid by

1. Lactate decarboxylase
2. Pyruvate dehydrogenase
3. Lactate dehydrogenase
4. Both A and B

Q. Respiration in insects is called direct because:

1. $\text{The cells exchange}{O}_2/C{O}_2\text{directly with the air in the tubes}$
2. $\text{The tissues exchange}{O}_2/C{O}_2\text{directly with coelomic fluid}$
3. $\text{Tracheal tubes exchange}{O}_2/C{O}_2\text{directly with the haemocoel which then exchange with tissues}$
4. $\text{The tissues exchange}{O}_2/C{O}_2\text{directly with the air outside through body surface}$

Q. Mark the wrong statement:

1. Carbon dioxide is always released in anaerobic respiration
2. Anaerobic respiration takes place in the cytoplasm
3. More energy is produced in aerobic respiration when compared to anaerobic respiration
4. The process of respiration in mammalian red blood cells is carried out anaerobically

Q.

The exchange of gases between inhaled air and blood is referred as ______ respiration

1. internal

2. cellular

3. circulaotory

4. external

Q. Read the following statements about human respiration

(i) Trachea divides at the level of the $6^{\text{th}}$ thoracic vertebra.
(ii) Terminal bronchioles, alveoli and their ducts form the respiratory part of this system.
(iii) Contraction of the diaphragm increases volume of thoracic chamber dorsoventrally.
(iv) The internal intercostals help in inspiration.

1. Only (i) is true
2. None is true
3. Only (iii) and (iv) are false
4. All except (iv) are true

Q.

Creatinine is a chemical waste product that's produced by your _______

1. Ammonia

2. Nucleotide

3. Anaerobic process

4. Muscle

Q. In Krebs’ cycle, at how many step(s) of decarboxylation occur(s)?

1. 1
2. 3
3. 2
4. 4

Q. The process by which ${\text{O}}_2$ rich atmospheric air is drawn in and ${\text{CO}}_2$ rich alveolar air is released out is

1. Both $A$ and $B$
2. Pulmonary ventilation
3. Breathing
4. Cellular respiration

Q.

What are the tests for lungs?

Q. Yeast produces ethanol by

1. partial breakdown of sugars aerobically
2. partial breakdown of sugars anaerobically
3. complete breakdown of sugars aerobically
4. complete breakdown of sugars anaerobically

Q.

What are the most powerful stimuli for breathing?

1. high pH; high CO₂

2. low pH; low CO₂

3. low pH; high CO₂

4. high pH; low CO₂

Q.

Glycogen is stored inside cells of

1. Spleen and liver

2. Pancreas

3. Kidneys and liver

4. Liver and muscles

Q. The presence of which structure is common to frog and snake with respect to respiration :

1. Diaphragm
2. Skin
3. Buccal cavity
4. Lungs

Q. In mammals, carbon dioxide is transported from tissues to respiratory surface by

1. Plasma and RBCs
2. Plasma only
3. RBCs and WBCs
4. Red blood corpuscles only

Q. Which of the following statements about food storage in the body is correct?

1. More glycogen is stored per unit mass in the muscles than in the liver
2. Glycogen storage in the liver is unlimited
3. Fat is a more efficient form of fuel storage than glycogen
4. Proteins in muscle cells are a normal storage form of fuel

Q.

When you exhale, the diaphragm ______________________

1. relaxes

2. moves up

3. pushes air out of lungs

4. all of the above

Q.

Which of the following are not involved in the process of breathing in humans?

1. nervous system

2. diaphragm

3. rib muscles

4. blood pH receptors in the brain

Q. Which of the following is/are correct about the respiratory zone of the human respiratory system?

1. Alveolar sacs are part of the respiratory zone
2. The main function is to transport air into the lungs
3. The respiratory zone is involved in exchange of gases between blood and air
4. The bronchi and bronchioles are the most important parts of the conducting zone

Q. Mark the wrong statement:

1. Carbon dioxide is always released in anaerobic respiration
2. Anaerobic respiration takes place in the cytoplasm
3. The process of respiration in mammalian red blood cells is carried out anaerobically
4. More energy is produced in aerobic respiration when compared to anaerobic respiration

Q.

Which of the following are functions of components of the respiratory system?

1. Warming and moistening of inhaled air

2. Delivering oxygen to and removing carbon dioxide from the blood

3. Sound production by the vibration of vocal cords

4. All of these

Q. The raw materials needed for respiration are

1. Glucose and $O_2$.
2. Glucose and carbon.
3. Glucose and $C{O}_2$.
4. Glucose and sucrose.

Q. Which of these are the respiratory devices found in adult frogs?
I) Skin
II) Gills
III) Book lungs
IV) Lungs
V) Buccopharyngeal cavity

1. I, IV, and V only
2. I and IV only
3. I, II, and III only
4. IV only

Q. Succulents are known to keep their stomata closed during the day to check transpiration. How do they meet their photosynthetic $C{O}_2$ requirements?

Q.

Choose the correct combination of labeling the molecules involved in the pathway of anaerobic respiration in yeast.

1. A – ethanol, B – CP2, C – Acetadehyde

2. A – $C{O}_{21}$ B – Ethanol, C – Acetaldehyde

3. A – Acetaldehyde, B – $C{O}_2$, C - Ethanol

4. A – Ethanol, B – Actaldehyde, C – $C{O}_2$