Breathing and Exchange of Gases Test 35

Result

Breathing and Exchange of Gases Test 35

Score
-
out of -
Rank
-
out of -

TIME Taken - -

SHARING IS CARING

If our Website helped you a little, then kindly spread our voice using Social Networks. Spread our word to your readers, friends, teachers, students & all those close ones who deserve to know what you know now.

Weekly Quiz Competition

Question 1
1 / -0

Emphysema is characterized by ________.

A
Inflation of alveoli

B
Pulmonary haemorrhage

C
Increased number of air sacs

D
Infection of Mycobacterium
Solution
- Emphysema is a respiratory disorder.
- In emphysema, the air sacs in the lungs (alveoli) are damaged.
- Over time, the inner walls of the air sacs weaken and rupture, creating larger air spaces instead of many small ones, which cause inflammation of the alveoli.
- Emphysema is mainly caused by cigarette smoking.
So the correct answer is option A.
Question 2
1 / -0

Arytenoid cartilage occurs in

A
Larynx

B
Nose

C
Hyoid

D
Sternum

Solution

The arytenoid cartilages are a pair of small cartilages, shaped roughly like three-sided pyramids, which are located toward the rear of the larynx and play a vital role in positioning and adjusting the vocal folds during speech.
So, the correct option is is 'Larynx'.
Question 3
1 / -0

In lungs there is definite exchange of ions between RBC and plasma. Removal of $$CO_2$$ from blood involves _________.

A
Influx of $$Cl^-$$ into RBC

B
Efflux of $$Cl^-$$ from RBC

C
Influx of $$HCO_3$$$$^-$$ ions in RBC

D
Efflux of $$HCO_3$$$$^-$$ ions from RBC

Solution

In the lungs, both the $$HCO_3$$$$^-$$/$$Cl^-$$ exchanger and carbonic anhydrase enzyme reverse directions. This results in an influx of bicarbonate into red blood cells, an efflux of chloride ions, and the generation of first carbonic acid and then carbon dioxide. The carbon dioxide diffuses out of the red blood cells, through the capillary walls, and into the alveolar spaces for exhaled.
So, the correct option is C.

Question 4

1 / -0

Match the columns.

	Column I		Column II
$$1$$	Tidal volume	a	$$2500-3000$$ml of air
$$2$$	Inspiratory reserve volume	b	$$1000$$ml of air
$$3$$	Expiratory reserve volume	c	$$500$$ml of air
$$4$$	Residual volume	d	$$3400-4800$$ml of air
$$5$$	Vital capacity	e	$$1200$$ml of air

$$1-c, 2-d, 3-b, 4-a, 5-e$$

$$1-c, 2-a, 3-b, 4-e, 5-d$$

$$1-c, 2-a, 3-d, 4-e, 5-b$$

$$1-e, 2-a, 3-b, 4-e, 5-d$$

$$1-d, 2-c, 3-b, 4-a, 5-e$$

Question 5
1 / -0

Haemoglobin of human foetus.

A
Has two protein subunits instead of four

B
Has higher affinity of oxygen than that of the adult

C
Has lower affinity of oxygen than that of the adult

D
Its affinity for oxygen is the same as that of an adult
Solution
Correct Answer: (B) Has higher affinity of oxygen than that of the adult.
Explanation:
Fetal hemoglobin has a higher affinity for oxygen than adult ones at all partial pressures.
This ensures that $$O_2$$ can be transferred to the fetus from the maternal blood across the placenta.
The $$PO_2$$ in fetal blood is very low due to its high metabolic rate associated with the growth of the foetus.
This is the reason why the affinity of oxygen with hemoglobin is high in the fetal blood than that of the adult.
Hence, option (B) is the correct explanation.
Question 6
1 / -0

Which is related to oxygen toxicity?

A
Blood poisoning

B
Collapsing of alveolar wall

C
Failure of ventilation

D
Both A and B
Question 7
1 / -0

Two fibro-elastic strands of larynx extend between _________.

A
Thyroid and cricoid

B
Thyroid and arytenoid cartilages

C
Cricoid and tracheal cartilaginous ring

D
Santorini and thyroid cartilages
Question 8
1 / -0

Pneumotaxic centre occurs in ______.

A
Cerebellum

B
Cerebrum

C
Medulla oblongata

D
Pons varolii

Solution

The pneumotaxic centre, located in the dorsal part of the pons varolii, sends inhibitory impulses to the inspiratory centre terminating inspiration and thereby regulating the inspiratory volume and respiratory rate. This centre likely is involved in the fine-tuning of breathing.
So the correct answer is option D.
Question 9
1 / -0

A respiratory disease is?

A
Cancer

B
Arthritis

C
Polio

D
Asthma
Question 10
1 / -0

With decrease in temperature oxyhaemoglobin curve will become

A
Straight

B
More steep

C
Parabola

D
All the above

Solution

A decrease in temperature favors the affinity of hemoglobin for oxygen so more oxygen and hemoglobin binding will take place and the graph will become steeper.
Thus the correct answer is 'More step'.

User

Question Analysis

Correct -
Wrong -
Skipped -

My Perfomance

Score
-
out of -
Rank
-
out of -

Re-Attempt Weekly Quiz Competition

Breathing and Exchange of Gases Test 35

Result

Breathing and Exchange of Gases Test 35

Score

-

Rank

-

SHARING IS CARING

Question 1

Inflation of alveoli

Pulmonary haemorrhage

Increased number of air sacs

Infection of Mycobacterium

Solution

Question 2

Larynx

Nose

Hyoid

Sternum

Solution

Question 3

Influx of $$Cl^-$$ into RBC

Efflux of $$Cl^-$$ from RBC

Influx of $$HCO_3$$$$^-$$ ions in RBC

Efflux of $$HCO_3$$$$^-$$ ions from RBC

Solution

Question 4

$$1-c, 2-d, 3-b, 4-a, 5-e$$

$$1-c, 2-a, 3-b, 4-e, 5-d$$

$$1-c, 2-a, 3-d, 4-e, 5-b$$

$$1-e, 2-a, 3-b, 4-e, 5-d$$

$$1-d, 2-c, 3-b, 4-a, 5-e$$

Question 5

Has two protein subunits instead of four

Has higher affinity of oxygen than that of the adult

Has lower affinity of oxygen than that of the adult

Its affinity for oxygen is the same as that of an adult

Solution

Question 6

Blood poisoning

Collapsing of alveolar wall

Failure of ventilation

Both A and B

Question 7

Thyroid and cricoid

Thyroid and arytenoid cartilages

Cricoid and tracheal cartilaginous ring

Santorini and thyroid cartilages

Question 8

Cerebellum

Cerebrum

Medulla oblongata

Pons varolii

Solution

Question 9

Cancer

Arthritis

Polio

Asthma

Question 10

Straight

More steep

Parabola

All the above

Solution

User

Question Analysis

My Perfomance

Score

-

Rank

-

Results Announcement on: coming Monday

Stay Tuned: We’ll update you on your result via email or SMS.