Question Pool Breathing for Energy
Breathing for Energy - SAMAGRA Question Pool & Answers | Class 9 English Medium
Kerala Syllabus SAMAGRA SCERT SAMAGRA Question Pool for Class 9 English Medium Biology Breathing for Energy
What is the purpose of distribution of iron tablets in schools as part of WIFS programme?
-
Answer)
Haemoglobin is necessary for the transport of Oxygen. The main constituent of haemoglobin is iron .If the amount of haemoglobin in the blood decreases it will
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Observe the following illustration and answer the questions
(a)How does the difference in concentration of A in alveoli and blood capillaries during inspiration help in this process?
(b)How the structure of Red blood cells is suitable for the formation of C?
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Answer)
(a)During inspiration, the concentration of oxygen is high in the alveoli. But, in the blood capillaries the concentration of oxygen is low. As a result of this,
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If the carbon dioxide produced as a result of cellular respiration is not removed , it will affect homeostasis - What is your response to this statement?
-
Answer)
Carbon dioxide combines with water present inside and out the cell to form carbonic acid. The increase in level of carbonic acid increases the acidity in the body.
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Compare the process of respiration in Cockroach and fishes
-
Answer)
Cockroach -Directly with tissues using trachea
Fishes-directly to blood using
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Find the word pair relationship and fill in the blanks.Write the relationship between words
Cockroach:Trachea
Amoeba:…………..
-
Answer)
Cell membrane, Respiratory Organ / Mode of Respiration in
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Obseve the picture and answer the following questions.
(a)What is the aim of this experiment?
(b)What does the increase in the level of water in the second jar indicate? How is this beneficial to the body?
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Answer)
(a)Measurement of vital capacity.
(b)The volume of water in the second jar will be proportional to vital capacity. When vital capacity increases, the
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"Young man was saved by a lifeguard from drowning while bathing in the sea." - News
What first aid should be given to a victim in such situations?
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Answer)
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The person must be rescued immediately from the water.
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Expel water which has entered the body.
-
Provide
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Find the word pair relationship and fill in the blanks.
Heart:Pericardium
Lungs:………….
-
Answer)
Pleura
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The diagram of human respiratory system is given below. Copy the picture, and label the following parts.
(a) The double layered protective membrane of the lungs
(b)The part where exchange of gases takes place.
(c)The part where ‘C’ shaped cartilaginous rings are present.
-
Answer)
(a)Pleura
(b)Alveoli
(c)Trachea (Wind
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Analyze the following statements and choose the correct answer.
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Bronchioles are supported by cartilaginous rings.
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The exchange of respiratory gases takes place in pleura.
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Nasal cavity connects the nostrils with the pharynx.
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Diaphragm separates the thoracic and abdominal cavities.
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a,c are right
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c,d are right
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a is right
-
b,d are right
-
Answer)
B) c,d are right
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“Like how the pericardium is to heart, so is the pleura to lung”-This is the opinion of a student in a discussion on respiratory system. Is there a basis for this comparison? Justify.
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Answer)
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Yes
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Both are double layered membranes.
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Both are protective layers.
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In both,the
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Correct the following flow chart related to respiratory system.
-
Answer)
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How far is the peculiarity of alveoli suitable for their function?
-
Answer)
Alveolar membranes is thin and elastic.
Alveoli are surrounded by numerous blood capillaries.
The wall is made up of single layer of
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Write the reason for the diffusion of blood from the alveoli to the blood capillaries.
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Less concentration of oxygen in the blood.
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Decreased thickness of the walls of alveoli and blood capillaries.
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Increased concentration of oxygen in the alveoli.
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All of the above.
-
Answer)
(d)All the above
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Does the haemoglobin has any role in the transport of oxygen and carbon dioxide? How?
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Answer)
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Yes
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Oxygen is transported in the form of xyhaemoglobin and Carbon dioxide is transported in the form of Carbamino
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Compete the following table suitably.
|
Inspiration |
Process |
Expiration |
|
............. Raises ............. ............. ............ |
Diaphragm Ribs Volume of thoracic cavity Pressure in the thoracic cavity. Air |
............ ........... ........... ........... Expelled out |
-
Answer)
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Qn 17.How do the contraction and relaxation of diaphragm and ribs help in inspiration and expiration ? Write your inferences?
-
Answer)
Diaphragm contracts , ribs raise due to the contraction of the intercostal muscles,Volume of the thoracic cavity increases-inspiration takes place
Diaphragm
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Qn 18.Plan a simple experiment to find vital capacity?
-
Answer)
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Qn 19.Copy the diagram.
(a)Label the direction of flow of Oxygen and carbon dioxide .
(b)Does the difference in the concentration of the respiratory gases help in the exchange of gases? How?
-
Answer)
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Qn 20.Complete the following illustration
-
Answer)
(a)Blood capillary
(b)Carbon
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Qn 21.The vital capacity of three men A, B and C are given in the graph below.
Analyze the graph and answer the questions.
(a) Whose vital capacity is in the healthy condition?
(b)Give two suggestions that will increase your vital capacity?-
Answer)
a)B
b) Do proper exercise, avoid
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Qn 22.Find the word pair relationship and fill in the blanks.
Stem : Lenticel
Leaves:……………
-
Answer)
Stomata
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Qn 23.Complete the given flowchart using appropriate sentences.
-
Answer)
(a)Red blood cells-Oxygen combines with haemoglobin to form Oxyhaemoglobin
(b)Blood capillaries in tissues-Haemoglobin releases oxygen and becomes
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Qn 24.“It is necessary to include food items like leafy vegetables with iron content in our diet for the proper health of respiratory system”
Do you agree with the above statement? Justify
-
Answer)
Yes,The main constituent for the synthesis of haemoglobin is iron molecules. Haemoglobin is necessary for the transport of
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Qn 25.Complete the following table on the basis of indicators
Indicator
Glycolysis
Krebs Cycle
Part where the stages of cellular
respiration takes place
Need of oxygen
Number of ATP molecules
produced
Products
-
Answer)
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Qn 26.Find the word pair relationship and fill in the blanks.
(a)Glycolysis : Cytoplasm
Krebs cycle:……………
(b)Glycolysis : 2 ATP
Krebs cycle:……………
-
Answer)
(a)Mitochondria
(b)28 ATP
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Qn 27.Find the word pair relationship and fill in the blanks
Vital capacity: 4.5 litre
Tidal Volume: ………..
-
Answer)
½ litre
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Qn 28.Which one of the following is not related to inspiration?
(a)Diaphragm relaxes.
(b)Volume of thoracic cavity increases.
(c)Pressure in the thoracic cavity decreases.
(d)Ribs raises.
-
Answer)
(a)Diaphragm relaxes.
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Qn 29.Complete the following chemical equation related to respiration
-
Answer)
(a)Glucose/Oxygen
(b)Oxygen/Glucose
(c)Carbon dioxide/Water
(d)Water/Carbon
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Qn 30.Find the word pair relationship and fill in the blanks
Oxygen + Haemoglobin : Oxyhaemoglobin
Carbon dioxide + Haemoglobin :…………………….
-
Answer)
Carbaminohaemoglobin
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Qn 31.Find the word pair relationship and fill in the blanks
Bacteria : ……………...
Yeast : Alcohol
-
Answer)
Lactic acid
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Qn 32.Observe the two activities given below.
Activity 1
Glucose + Oxygen ----------> Carbon Dioxide + Water + Energy
Activity 2
Carbon dioxide + water ------------> Glucose + Oxygen
a) Identify the activity which occur in both plants and animals.b) Which activity takes place only in plants?
-
Answer)
(a) Activity 1
(b )Activity 2
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Qn 33.Find the word pair relationship and fill in the blanks
Cellular respiration:30 ATP
Fermentation:-------------
-
Answer)
2 ATP
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Qn 34.Find out the odd one and write the common feature of others
(a)Emphysema,Bronchitis,Uremia,Lung cancer
(b)bronchus,Alveoli,Pleura,Pericardium
-
Answer)
(a) Uremia,Others are the diseases which affect respiratory system
(b)Pericardium,Others are the parts of respiratory
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Qn 35.Which is the most appropriate statement about breathing?
a) Intake of oxygen to the lungs.b) Absorbing oxygen and releasing carbon dioxide.
c) Releasing of energy from the nutrients by utilizing oxygen and removal of carbon dioxide.d) the raising and lowering of the rib.
-
Answer)
c) Releasing of energy from the nutrients by utilizing oxygen and removal of carbon
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Qn 36.Correct the underlined words of the following statement if it is not correct.
(a)The main constituent for the synthesis of haemoglobin is iron .
(b)Alcohol is formed by the fermentation of milk
(c)Cartilaginous rings helps trachea to remain open always.
(d)In plants, lenticel in leaves helps in gaseous exchange.
-
Answer)
(b) Lactic acid is formed by the fermentation of milk
(d) In plants,Stomata in leaves helps in gaseous
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Qn 37.Find out the correct statements from the following.
(a) Emphysema is a disease that affects alveoli
(b) Smoking is the main cause of lung cancer.
(c) 28 ATP molecules of energy is released by glycoslis
(d) Krebs cycle takes place in Mitochondria
A) a, b and c are correct
B) a, b and d are correct
C) Only A is right
D) a and b are correct-
Answer)
B) a,b and d are correct
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Qn 38.Arrange column B and C of the table according to column A .
A
B
C
Pleura
Diaphragm
Alcohol
Anareobic Respiration
Yeast
30 ATP
Krebs Cycle
Mitochondria
Prevent friction
Double layered membrane
28 ATP
-
Answer)
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Qn 39.Arrange column B and C of the table according to column A .
A
B
C
Stem
Fermentation
Vital capacity
Carbonic Acid
Emphysema
Tidal volume
Tobacco
Lenticel
Homeostasis
Acidity
Gaseous exchange
-
Answer)
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Qn 40.Analyse the relation between respiration and photosynthesis and complete the following table
Indicators
Photosynthesis
Respiration
Functions
Phases of the reaction
Substrates
Products
-
Answer)
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Qn 41.Observe the following illustration and answer the questions.
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-
Answer)
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Answer)
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Answer)