Class 11 Biology - Chapter Photosynthesis in Higher Plants NCERT Solutions | By looking at a plant externally can you
By looking at a plant externally can you tell whether a plant is C3 or C4? Why and how?
One cannot distinguish whether a plant is C3 or C4 by observing its leaves and other morphological features externally. Unlike C3plants, the leaves of C4 plants have a special anatomy called Kranz anatomy and this difference can only be observed at the cellular level. For example, although wheat and maize are grasses, wheat is a C3 plant, while maize is a C4 plant.
More Questions From Class 11 Biology - Chapter Photosynthasis in Higher Plants
- Q:- Figure 13.10 shows the effect of light on the rate of photosynthesis. Based on the graph, answer the following questions:
(a) At which point/s (A, B or C) in the curve is light a limiting factor?
(b) What could be the limiting factor/s in region A?
(c) What do C and D represent on the curve?
- Q:- By looking at which internal structure of a plant can you tell whether a plant is C3 or C4? Explain.
- Q:- Even though a very few cells in a C4 plant carry out the biosynthetic Calvin pathway, yet they are highly productive. Can you discuss why?
- Q:- Give comparison between the following:
(a) C3 and C4 pathways
(b) Cyclic and non-cyclic photophosphorylation
(c) Anatomy of leaf in C3 and C4 plants - Q:- Suppose there were plants that had a high concentration of Chlorophyll-b, but lacked chlorophyll-a, would it carry out photosynthesis? Then why do plants have chlorophyll-b and other accessory pigments?
- Q:- Look at leaves of the same plant on the shady side and compare it with the leaves on the sunny side. Or, compare the potted plants kept in the sunlight with those in the shade. Which of them has leaves that are darker green? Why?
- Q:- RuBisCo is an enzyme that acts both as a carboxylase and oxygenase. Why do you think RuBisCo carries out more carboxylation in C4plants?
- Q:- Why is the colour of a leaf kept in the dark frequently yellow, or pale green? Which pigment do you think is more stable?
Popular Questions of Class 11 Biology
- Q:- Why are living organisms classified?
- Q:- Discuss how classification systems have undergone several changes over a period of time?
- Q:- What is the basis of classification of algae?
- Q:- What are the difficulties that you would face in classification of animals, if common fundamental features are not taken into account?
- Q:- What is meant by modification of root? What type of modification of root is found in the (a) Banyan tree (b) Turnip (c) Mangrove trees
- Q:- State the location and function of different types of meristem.
- Q:- Answer in one word or one line. (i) Give the common name of Periplaneta americana. (ii) How many spermathecae are found in earthworm? (iii) What is the position of ovaries in the cockroach? (iv) How many segments are present in the abdomen of cockroach? (v) Where do you find malphigian tubules?
- Q:-
Which of the following is not correct?
(a) Robert Brown discovered the cell.
(b) Schleiden and Schwann formulated the cell theory.
(c) Virchow explained that cells are formed from pre-existing cells.
(d) A unicellular organism carries out its life activities within a single cell. - Q:- What are macromolecules? Give examples.
- Q:- What is the average cell cycle span for a mammalian cell?
Recently Viewed Questions of Class 11 Biology
- Q:- Distinguish between
(a) Simple epithelium and compound epithelium.
(b) Cardiac muscle and striated muscle
(c) Dense regular and dense irregular connective tissues
(d) Adipose and blood tissue
(e) Simple gland and compound gland - Q:-
What is the site of gaseous exchange in an insect?
- Q:- Find out a qualitative test for proteins, fats and oils, amino acids and test any fruit juice, saliva, sweat and urine for them.
- Q:- What causes the opening and closing of guard cells of stomata during transpiration?
- Q:- Justify the following statements on the basis of external features (i) Underground parts of a plant are not always roots (ii) Flower is a modified shoot
- Q:-
How do neutral solutes move across the plasma membrane? Can the polar molecules also move across it in the same way? If not, then how are these transported across the membrane?
- Q:- Draw a neat diagram of digestive system of frog.
- Q:- Illustrate the taxonomical hierarchy with suitable examples of a plant and an animal.
- Q:-
Discuss the main steps in the digestion of proteins as the food passes through different parts of the alimentary canal.
- Q:- Analyse the events during every stage of cell cycle and notice how the following two parameters change
(i) Number of chromosomes (N) per cell
(ii) Amount of DNA content (C) per cell
2 Comment(s) on this Question
Well answers I understand very well
Very nicely answered all the questions
- All Chapters Of Class 11 Biology
- All Subjects Of Class 11