Class 11 Biology - Chapter Anatomy of Flowering Plants NCERT Solutions | What is stomatal apparatus? Explain the
What is stomatal apparatus? Explain the structure of stomata with a labelled diagram.
Stomata are small pores present in the epidermis of leaves. They regulate the process of transpiration and gaseous exchange. The stomatal pore is enclosed between two bean-shaped guard cells. The inner walls of guard cells are thick, while the outer walls are thin. The guard cells are surrounded by subsidiary cells. These are the specialised epidermal cells present around the guard cells. The pores, the guard cells, and the subsidiary cells together constitute the stomatal apparatus.
More Questions From Class 11 Biology - Chapter Anatomy of Flowering Plants
- Q:- Why are xylem and phloem called complex tissues?
- Q:- State the location and function of different types of meristem.
- Q:- What is periderm? How does periderm formation take place in dicot stem?
- Q:- Describe the internal structure of a dorsiventral leaf with the help of labelled diagrams.
- Q:- Explain the process of secondary growth in stems of woody angiosperm with help of schematic diagrams. What is the significance?
- Q:- The transverse section of a plant material shows the following anatomical features, (a) the vascular bundles are conjoint, scattered and surrounded by sclerenchymatous bundle sheaths (b) phloem parenchyma is absent. What will you identify it as?
- Q:- How is the study of plant anatomy useful to us?
- Q:- Name the three basic tissue systems in the flowering plants. Give the tissue names under each system.
- Q:- Draw illustrations to bring out anatomical difference between
(a) Monocot root and dicot root
(b) Monocot stem and dicot stem - Q:- Cut a transverse section of young stem of a plant from your school garden and observe it under the microscope. How would you ascertain whether it is a monocot stem or dicot stem? Give reasons.
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:- 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?
- Q:- What are the factors affecting the rate of diffusion?
Recently Viewed Questions of Class 11 Biology
- Q:- Indicate whether the following statements are true or false:
(a) Micturition is carried out by a reflex.
(b) ADH helps in water elimination, making the urine hypotonic.
(c) Protein-free fluid is filtered from blood plasma into the Bowmans capsule.
(d) Henles loop plays an important role in concentrating the urine.
(e) Glucose is actively reabsorbed in the proximal convoluted tubule. - Q:-
Bile juice contains no digestive enzymes, yet it is important for digestion. Why?
- Q:- Define and understand the following terms:
(i) Phylum
(ii) Class
(iii) Family
(iv) Order
(v) Genus - Q:- What are respiratory substrates? Name the most common respiratory substrate.
- Q:- Organise a discussion in your class on the topic- Are viruses living or non-living?
- Q:- Describe the important characteristics of gymnosperms.
- Q:- If you are given a specimen, what are the steps that you would follow to classify it?
- Q:-
Cell is the basic unit of life. Discuss in brief.
- Q:- Explain the following processes:
(a) Polarisation of the membrane of a nerve fibre
(b) Depolarisation of the membrane of a nerve fibre
(c) Conduction of a nerve impulse along a nerve fibre
(d) Transmission of a nerve impulse across a chemical synapse - Q:- What happens when a pressure greater than the atmospheric pressure is applied to pure water or a solution?
10 Comment(s) on this Question
Good but no soooooo
Good but no soooooo
Ur site olways help me
tq
ðperfact ans
Thnx
So nice ðððððð it's was so usefujqll app
ð¤ð¤
Mst site h
Oh..... I found it... Thnk u.. And sorry.
- All Chapters Of Class 11 Biology
- All Subjects Of Class 11