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Chapters
2: Kingdom Animalia
3: Tissue Level of Organisation
4: Organ and Organ Systems in Animals
5: Digestion and Absorption
▶ 6: Respiration
7: Body Fluids and Circulation
8: Excretion
9: Locomotion and Movement
10: Neural Control and Coordination
11: Chemical Coordination and Integration
12: Trends in Economic Zoology
![Samacheer Kalvi solutions for Biology (Zoology) [English] Class 11 TN Board chapter 6 - Respiration - Shaalaa.com](/images/biology-zoology-english-class-11-tn-board_6:5f2b1b2038084cf381bfa42c826a928c.jpg "Samacheer Kalvi solutions for Biology (Zoology) [English] Class 11 TN Board chapter 6 - Respiration")
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Solutions for Chapter 6: Respiration
Below listed, you can find solutions for Chapter 6 of Tamil Nadu Board of Secondary Education Samacheer Kalvi for Biology (Zoology) [English] Class 11 TN Board.
Samacheer Kalvi solutions for Biology (Zoology) [English] Class 11 TN Board 6 Respiration Evaluation [Pages 104 - 106]
Breathing is controlled by ______.
cerebrum
medulla oblongata
cerebellum
pons
Intercostal muscles are found between the ______.
vertebral column
sternum
ribs
glottis
The respiratory structures of insects are ______.
tracheal tubes
gills
green glands
lungs
Asthma is caused due to ______.
inflammation of bronchus and bronchioles
inflammation of bronchione
damage of diaphragm.
infection of lungs
The Oxygen Dissociation Curve is ______.
sigmoid
straight line
curved
rectangular hyperbola
The Tidal Volume of a normal person is ______.
800 mL
1200 mL
500 mL
1100 – 1200 mL
During inspiration, the diaphragm ______.
expands
unchanged
relaxes to become domed–shaped.
contracts and flattens
CO2 is transported through blood to lungs as ______.
carbonic acid
oxyhaemoglobin
carbamino haemoglobin
carboxy haemoglobin
When 1500 mL air is in the lungs, it is called ______.
vital capacity
tidal volume
residual volume
inspiratory reserve volume
Vital capacity is ______.
TV + IRV
TV + ERV
RV + ERV
TV + TRV + ERV
After a long deep breath, we do not respire for some seconds due to ______.
more CO2 in the blood
more O2 in the blood
less CO2 in the blood
less O2 in the blood
Which of the following substances in tobacco smoke damage the gas exchange system?
carbon monoxide and carcinogens
carbon monoxide and nicotine
carcinogens and tar
nicotine and tar
Column I represents diseases and column II represents their symptoms. Choose the correctly paired option
| Column I | Column II |
| (P) Asthma | (i) Recurring of bronchitis |
| (Q) Emphysema | (ii) Accumulation of W.B.C in alveolus |
| (R) Pneumonia | (iii) Allergy |
P = iii, Q = ii, R = i
P = iii, Q = i, R = ii
P = ii, Q = iii, R = i
P = ii, Q = i, R = iii
Which of the following best describes the process of gas exchange in the lungs?
Air moves in and out of the alveoli during breathing.
Carbon dioxide diffuses from deoxygenated blood in capillaries into the alveolar air.
Oxygen and carbon dioxide diffuse down their concentration gradients between blood and alveolar air.
Oxygen diffuses from alveolar air into deoxygenated blood.
Make the correct pairs.
| Column – I | Column – II |
| (P) IC | i. maximum volume of air breathe in after forced. |
| (Q) EC | ii. Volume of air present after expiration in lungs. |
| (R) VC | iii. Volume of air inhaled after expiration. |
| (S) FRC | iv. Volume of air present after expiration in lungs. |
P – i, Q – ii, R – iii, S – iv
P – ii, Q – iii, R – iv, S – i
P – ii, Q – iii, R – i, S – iv
P – iii, Q – iv, R – i, S – ii
Make the correct pairs.
| Column – I | Column – II |
| (P) Tidal volume | i. 1000 to 1100 ml |
| (Q) Residual volume | ii. 500 ml |
| (R) Expiratory reserve volume | iii. 2500 to 3000 ml |
| (S) Inspiratory reserve volume | iv. 1100 to 1200 ml |
P – ii, Q – iv, R – i, S – iii
P – iii, Q – ii, R – iv, S – i
P – ii, Q – iv, R – iii, S – i
P – iii, Q – iv, R – i, S – ii
Name the respiratory organs of flatworm, earthworm, fish, prawn, cockroach and cat.
Name the enzyme that catalyses the bicarbonate formation in RBCs.
Air moving from the nose to the trachea passes through a number of structures. List in order of the structures.
Which structure seals the larynx when we swallow?
Resistance in the airways is typically low. Why? Give two reasons.
How the body makes long–term adjustments when living in high altitude.
Why is pneumonia considered a dangerous disease?
Diffusion of gases occurs in the alveolar region only and not in any other part of the respiratory system. Discuss.
Sketch a flow chart to show the path way of air flow during respiration.
Explain the conditions which creates problems in oxygen transport.
Solutions for 6: Respiration
Samacheer Kalvi solutions for Biology (Zoology) [English] Class 11 TN Board chapter 6 - Respiration
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Concepts covered in Biology (Zoology) [English] Class 11 TN Board chapter 6 Respiration are Transport of Gases, Problems in Oxygen Transport, Effects of Smoking, Disorders of Respiratory System, Exchange of Gases, Regulation of Breathing / Respiration, Mechanism of respiration-Breathing, Respiratory Functions, Respiratory Organs in Various Organisms.
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