मराठी

The Given Fig. Refers to an Apparatus Which is Used to Demonstrate a Physiological Process:

Advertisements
Advertisements

प्रश्न

The given fig. refers to an apparatus which is used to demonstrate a physiological process:

(a) What is the purpose of keeping potassium hydroxide solution in test tubes X and Y?

(b) What is the purpose of keeping boiled peas soaked in disinfectant in test tube Y?

(c) Why has coloured water risen in tube 1?

(d) Name the biological process which causes the above rise.

(e) Define the biological process shown in the experiment.

थोडक्यात उत्तर
Advertisements

उत्तर

(a) To absorb carbon dioxide produced during respiration
(b) If these are not soaked in disinfectant, the bacterial growth may be there in the tube Y and the accurate results may not be obtained due to bacterial respiration.
(c) The germinating peas respire and oxygen is used which creates a vacuum in the tube. So coloured water has risen in tube1.
(d) Respiration
(e) It is defined as the stepwise oxidation of glucose in the living cells to release energy.

shaalaa.com
Experiments on Respiration in Plants
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 10: Respiration in Plants - Exercise [पृष्ठ ८९]

APPEARS IN

फ्रँक Biology Part 1 [English] Class 9 ICSE
पाठ 10 Respiration in Plants
Exercise | Q 12 | पृष्ठ ८९

संबंधित प्रश्‍न

Describe one experiment you would perform to demonstrate the following phenomena: The germinating seeds produce heat.


Describe one experiment you would perform to demonstrate the following phenomena: The germinating seeds to give out carbon dioxide.


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?


The following diagram refers to an apparatus which is used to demonstrate a physiological process:

Why has the coloured water risen in tubing 1? 


Given below is a set of six experimental set-ups (A-F), kept in this state for about 24 hours.

In which tube/tubes the limewater will turn milky?


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?


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.


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:

What change would you expect to observe in bottle 'D'?


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?


Given alongside is an experimental set up to demonstrate a phenomenon in a plant:

(a) What is the aim of this experiment?

(b) Why was the bell jar covered with a black cloth?

(c) What is the function of caustic soda in this experiment?

(d) Give an overall chemical equation of the process mentioned in (a) above.

(e) Mention one precaution that should be taken to ensure more accurate results. What change, if any, would you observe in the lime water in Flask A and B? In each case give a reason for your answer.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×