H S Vishnoi Solutions for Exercise 5: REVIEW QUESTIONS
H S Vishnoi Biology Solutions for Exercise - H S Vishnoi Solutions for Exercise 5: REVIEW QUESTIONS
Attempt the practice questions from Exercise 5: REVIEW QUESTIONS with hints and solutions to strengthen your understanding. Concise Biology Part - 1 solutions are prepared by Experienced Embibe Experts.
Questions from H S Vishnoi Solutions for Exercise 5: REVIEW QUESTIONS with Hints & Solutions
Describe one experiment each you would perform to demonstrate the following phenomena:
Experiment demonstrating that germinating seeds can respire even in the total absence of air.
How do the following structures help in respiration in plants?
Lenticels
How do the following structure help in respiration in plants?
Stomata
How do the following structure help in respiration in plants?
Root hairs
Given below is a set of six experimental set-up (A-F), kept in this state for about 24 hours.
(a) In how many flasks, the different plant parts have been kept under observation?
(b) What is the purpose of keeping a test-tube containing limewater in each flask?
(c) In which tube/tubes the limewater will turn milky?
(d) What is the purpose of the set-up F?
(e) What conclusion can you draw from this experiment?
The following two chemical reactions are supposed to indicate a certain process occurring in the green plants under two different conditions:
(a) C6H12O6 + 6O2 -----> 6CO2 + ____ + 38 ATP
(b) C6H12O6 -----> _____ + 2CO2 + 2 ATP
(i) Fill in the blank in each reaction.
(ii) Name the process represented by the two reactions.
(iii) What are the conditions under which the two reactions (a) and (b) are occurring respectively?
The following diagram 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) Why has the coloured water risen in tubing 1?
(c) What is the purpose of keeping boiled peas soaked in a disinfectant in test tube Y?
(d) Name the biological process which causes the above rise.
(e) Define the biological process shown in the 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 questions that follow:
(a) Name the physiological process being studied.
(b) What is the function of soda lime in the bottle 'A' and why is limewater placed in bottle 'B'?
(c) What change would you expect to observe in bottle 'D'?
(d) Represent the physiological process named in (a) above in the form of a chemical equation.
(e) In order to obtain accurate results, the bottle 'C' should be covered with a black cloth. Why?
(f) If bottle 'C' was fitted with a 3-holed rubber stopper and a thermometer was introduced in such a way that its bulb reaches close to the germinating seeds, what would you observe? Why?
