Question
Differentiate between the following:
Ethylene and Abscisic Acid

Answer

EthyleneAbscisic Acid
 Synthesised in senescent leaves and   flowers,     germinating seeds and ripening   fruits. Synthesised in green fruits and seeds at the beginning of the wintering period.
 Induces fruits ripening. Induces dormancy of buds and seeds.
 Promotes root growth and root hair   formation. Inhibits seedgermination and development.
 Induces flowering in mango. Stimulates closing of stomata.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

Write some benefits of a small family.
Industrial melanism provides a good example of natural selection. Discuss.
Study the diagram given below and then answer the question that follows:

Why is the pancreas referred to as an exo-endocrine gland?
Given below is a diagram representing a stage during mitotic cell division. Study it carefully and answer the question that follow.

How will you differentiate between mitosis and meiosis on the basis of the chromosome number in the daughter cells?
Draw a neuron and label all its parts.
A candidate studied the importance of certain factors in photosynthesis. He took a potted plant and kept in the dark for over 24 hours. In the early hours of the next morning, he covered one of the leaves with black paper in the centre only. Then he placed the plant in sunlight for a few hours and tested the leaf which was covered with black paper for starch.
Describe step by step, how the candidate proceeded to test the leaf for the presence of starch?
Give Reasons
Missing of menses is the first indication of pregnancy.
What is the direct cell division? Explain with an example.
Given diagram represents an apparatus set-up to study a very important physiological process.
(i) Name the process being studied.
(ii) Explain the process.
(iii) What change would you observe in the thistle funnel containing sugar Thistle Funnel solution after about 10 minutes?

Image
Given below are three diagrammatic sketches (A, B and C) of one and the same particular phase during mitotic type of cell division.

(a) Identify the phase
(b) What is the diploid number of chromosomes shown in them?
(c) Identify whether these are animal cells or plant cells?
(d) Which of these is/are shown in correct direction?
(i) Only A
(ii) Only B
(iii) Only A and C
(iv) All the three