Question 11 Mark
Name the following:
A chemical which removes $CO_2 $from the air.
A chemical which removes $CO_2 $from the air.
Answer
View full question & answer→Soda lime
Questions
[1 Mark Question Answer]
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Test yourself on this topic
21 questions · timed · auto-graded
Question 21 Mark
Name the following:
Aerobic respiration requires_________ .
Aerobic respiration requires_________ .
Answer
View full question & answer→Oxygen
Question 31 Mark
Name the following:
A common phase in both aerobic and anaerobic respiration.
A common phase in both aerobic and anaerobic respiration.
Answer
View full question & answer→Glycolysis
Question 41 Mark
Name the following:
An organism which respires throughout lifeanaerobically.
An organism which respires throughout lifeanaerobically.
Answer
View full question & answer→Fungus
Question 51 Mark
Name the following:
Oxidative breakdown of carbohydrates to release energy.
Oxidative breakdown of carbohydrates to release energy.
Answer
View full question & answer→Respiration
Question 61 Mark
Name the following:
Energy currency of cell.
Energy currency of cell.
Answer
View full question & answer→ATP (adenosine triphosphate)
Question 71 Mark
Do the plants respire all day and night or only during the night?
Answer
View full question & answer→Respiration is an essential life process for all living organisms. Therefore, plants also respire all day and all night.
Question 81 Mark
In order to study and prove a particular physiological process in plants, the following experiment was set up. Study the same and then answer the question that follow:
In order to obtain accurate results, the bottle 'C' should be covered with black cloth. Why?
In order to obtain accurate results, the bottle 'C' should be covered with black cloth. Why?
Answer
View full question & answer→The bottle 'C' when covered with a black cloth will have no scope for photosynthesis. Hence, only the process of respiration can be observed.
Question 91 Mark
In order to study and prove a particular physiological process in plants, the following experiment was set up. Study the same and then answer the question that follow:
Represent the physiological process named in question 4.1 in the form of a chemical equation.
Represent the physiological process named in question 4.1 in the form of a chemical equation.
Answer
View full question & answer→$C _6 H _{12} O _6+6 O _2 \longrightarrow 6 CO _2+6 H _2 O +38$ ATP (Energy)
Question 101 Mark
In order to study and prove a particular physiological process in plants, the following experiment was set up. Study the same and then answer the question that follows:
Name the physiological process being studied.
Name the physiological process being studied.
Answer
View full question & answer→The experiment was set up to study that $CO _2$ is given off from living plant material which performs respiration.
Question 111 Mark
Given below is a set of six experimental set-ups (A-F), kept in this state for about 24 hours
.
What conclusion can you draw from this experiment?
.
What conclusion can you draw from this experiment?
Answer
View full question & answer→It can be concluded from this experiment that $CO _2$ is produced during respiration.
Question 121 Mark
Given below is a set of six experimental set-ups (A-F), kept in this state for about 24 hours.
What is the purpose of the set-up F?
What is the purpose of the set-up F?
Answer
View full question & answer→Set-up F acts as a control for the experiment, where all the conditions are similar except for the plant part, which is missing.
Question 131 Mark
Given below is a set of six experimental set-ups (A-F), kept in this state for about 24 hours.
What is the purpose of keeping a test-tube containing limewater in each flask?
What is the purpose of keeping a test-tube containing limewater in each flask?
Answer
View full question & answer→Limewater absorbs $CO_2$ present in the flasks. If $CO_2 $is produced, limewater turns milky.
Question 141 Mark
Given below is a set of six experimental set-ups (A-F), kept in this state for about 24 hours
.
In how many flasks, the different plant parts have been kept under observation?
.
In how many flasks, the different plant parts have been kept under observation?
Answer
View full question & answer→Five flasks (A-E) are having different plant parts for observation.
Question 151 Mark
The following diagram refers to an apparatus which is used to demonstrate a physiological process:
Define the biological process shown in the experiment.
Define the biological process shown in the experiment.
Answer
View full question & answer→The catabolic process of releasing energy from simple sugars for carrying out life processes is called respiration.
Question 161 Mark
The following diagram refers to an apparatus which is used to demonstrate a physiological process:
Name the biological process which causes the above rise.
Name the biological process which causes the above rise.
Answer
View full question & answer→Respiration is the cause of the above rise.
Question 171 Mark
The following diagram refers to an apparatus which is used to demonstrate a physiological process:
What is the purpose of keeping boiled peas soaked in a disinfectant in test tube Y?
What is the purpose of keeping boiled peas soaked in a disinfectant in test tube Y?
Answer
View full question & answer→In test tube Y, boiled peas soaked in disinfectant are kept because the boiled seeds are dead and cannot respire. Therefore, the process of respiration does not take place in test tube Y.
Question 181 Mark
The following diagram refers to an apparatus which is used to demonstrate a physiological process:
What is the purpose of keeping potassium hydroxide solution in test tubes X and Y?
What is the purpose of keeping potassium hydroxide solution in test tubes X and Y?
Answer
View full question & answer→Potassium hydroxide solution is kept in test tube X and Y to check the presence of $CO_2 $, as KOH can absorb $CO_2 $ if it is produced.
Question 191 Mark
Can cell respiration occur in any organism at a temperature of about 65°C? Give reason.
Answer
View full question & answer→Cell respiration cannot occur in any organism at a temperature of about 65°C because the enzymes involved in respiration become inactivated at high temperatures.
Question 201 Mark
Write the full forms of ATP and ADP.
Answer
View full question & answer→ATP: Adenosinetriphosphate
ADP: Adenosinediphosphate
ADP: Adenosinediphosphate
Question 211 Mark
How is tilling of the soil useful for the crops growing in it?
Answer
View full question & answer→Tilling makes the soil porous and airy. The underground parts of the plants get a sufficient amount of oxygen for respiration. In this way, tilling helps the crops to grow faster.