TEST Yourself
and
2. Breathing rate increases during fast physics
A. Fill in the blanks with suitable words.
F. Give reasons for the following.
1. We need to breathe.
1
respiration occurs inside cells.
2. During inhalation, ribs move
activities
3. We sneeze
3. End products of respiration are
and energy
G. Match the columns.
4. Breathing Involves two steps
and
Column A
Column B
1. Epiglottis
(a) Air Sacs
5. Opening of larynx in the pharynx is protected
2. Pneumonia
(b) Tuberculosis
by
3. BCG
(c) Trachea
B. Give one word for the following,
4. Alveoli
(d) Carbon dioxide
1. Air sacs inside the lungs
5. Exhalation
(e) Bacteria
2. The muscular partition that separates thoracic
cavity and abdominal cavity
H. State whether these statements are true
3. The gas which turns limewater milky
false. If false, rewrite the correct form of
statements.
4. The temporary compound formed by
haemoglobin with oxygen
1. The air we breathe out is nich in oxygen and
5. The structures that help in breathing
moisture.
6. Substance broken down during respiration to
2. During fast running or heavy exercise
release energy
breathe fast and irregularly.
3. Trachea has a large surface area for gaseos
C. Mention the role of the following.
exchange
1 Nasal passages
2. Alveoli of lungs
1. Encircle the odd one out. Give reasons for
3. Ribs in breathing
4. Hoemoglobin
1. Thoracic cavity, abdominal cavity, diaphragm
ribcage
5. Epiglottis
2. Alveoli, lungs, skin, bronchi, bronchioles
D. Differentiate between the following,
3. Ammonia, glucose, Co, lungs
1. Breathing and respiration
2. External and internal respiration
J. Multiple Choice Questions.
3. Exhalation and inhalation
1. During Inhalation
(a) Diaphragm relaxes and rib muscles
E. Answer these questions.
contract
1. Explain the mechanism of breathing in human
(b) Diaphragm contracts and rib musdes
beings.
relax
2. How does exchange of gases take place in
© Both diaphragm and rib muscles
human body?
relax
3. With the help of an experiment, prove that
(d) Both diaphragm and rib muscles
the exhaled air contains carbon dioxide.
contract
2. Exhaled air contains more
(a) Oxygen
(b) Carbon dioxide
(c) Nitrogen
(d) Oxygen and nitrogen
3. The breathing rate in hu
conditions is
(a) 16-18 times
(b) 20-25 times
(c) 39-32 times
(d) 18-20 times
4. The process of gaseou
between air and blood
(a) Respiration
(b) Transpiration
(c) External respiration
(d) Internal respiration
K Diagram-based questi.
1. Draw and label a di
respiratory organs
2 With the help of
respiratory process in
TH
ZO
your choice.
.
Answers
Answer:
2. Breathing rate increases during fast physics
A. Fill in the blanks with suitable words.
F. Give reasons for the following.
1. We need to breathe.
1
respiration occurs inside cells.
2. During inhalation, ribs move
activities
3. We sneeze
3. End products of respiration are
and energy
G. Match the columns.
4. Breathing Involves two steps
and
Column A
Column B
1. Epiglottis
(a) Air Sacs
5. Opening of larynx in the pharynx is protected
2. Pneumonia
(b) Tuberculosis
by
3. BCG
(c) Trachea
B. Give one word for the following,
4. Alveoli
(d) Carbon dioxide
1. Air sacs inside the lungs
5. Exhalation
(e) Bacteria
2. The muscular partition that separates thoracic
cavity and abdominal cavity
H. State whether these statements are true
3. The gas which turns limewater milky
false. If false, rewrite the correct form of
statements.
4. The temporary compound formed by
haemoglobin with oxygen
1. The air we breathe out is nich in oxygen and
5. The structures that help in breathing
moisture.
6. Substance broken down during respiration to
2. During fast running or heavy exercise
release energy
breathe fast and irregularly.
3. Trachea has a large surface area for gaseos
C. Mention the role of the following.
exchange
1 Nasal passages
2. Alveoli of lungs
1. Encircle the odd one out. Give reasons for
3. Ribs in breathing
4. Hoemoglobin
1. Thoracic cavity, abdominal cavity, diaphragm
ribcage
5. Epiglottis
2. Alveoli, lungs, skin, bronchi, bronchioles
D. Differentiate between the following,
3. Ammonia, glucose, Co, lungs
1. Breathing and respiration
2. External and internal respiration
J. Multiple Choice Questions.
3. Exhalation and inhalation
1. During Inhalation
(a) Diaphragm relaxes and rib muscles
E. Answer these questions.
contract
1. Explain the mechanism of breathing in human
(b) Diaphragm contracts and rib musdes
beings.
relax
2. How does exchange of gases take place in
© Both diaphragm and rib muscles
human body?
relax
3. With the help of an experiment, prove that
(d) Both diaphragm and rib muscles
the exhaled air contains carbon dioxide.
contract
2. Exhaled air contains more
(a) Oxygen
(b) Carbon dioxide
(c) Nitrogen
(d) Oxygen and nitrogen
3. The breathing rate in hu
conditions is
(a) 16-18 times
(b) 20-25 times
(c) 39-32 times
(d) 18-20 times
4. The process of gaseou
between air and blood
(a) Respiration
(b) Transpiration
(c) External respiration
(d) Internal respiration
K Diagram-based questi.
1. Draw and label a di
respiratory organs
2 With the help of
respiratory process in
TH
ZO
your choice.
.
Answer:
during 20-25times ....