Please select a subject first
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A student identified the various parts of an embryo of a gram seed and listed them as given below :
(I) Testa
(II) Plumule
(III) Radicle
(IV) Cotyledon
(V) Tegmen
Out of these the actual parts of the embryo are :
(A) I, II, III
(B) II, III, IV
(C) III, IV, V
(D) II, IV, V
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Name the parts labelled as A, B, C and D in the diagram given below:
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"The chromosomal number of the sexually producing parents and their offspring is the same." Justify this statement.
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Give one example of a unisexual flower.
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Mention the changes a flower undergoes after fertilisation.
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You are asked by your teacher to study the different parts of an embryo of a gram seed. Given below are the steps to be followed for the experiment:
I. Soak the gram seeds in plain water and keep them overnight.
II. Cut open a soaked seed and observe its different parts.
III. Take some dry gram seeds in a petri dish.
IV. Drain the excess water.
V. Cover the soaked seeds with a wet cotton cloth and leave them for a day.
The correct sequence of these steps is :
(A) III, I, V, IV, II
(B) III, I, II, IV, V
(C) III, IV, V, I, II
(D) III, I, IV, V, II
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Write the names of those parts of a flower which serve the same function as the following do in the animals :
(i) testis,
(ii) sperm,
(iii) ovary,
(iv) egg
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State the function of flowers in the flowering plants.
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How is the process of pollination different from fertilization?
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The anther contains ______.
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Name the male part of the flower.
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Where are a plant's sex organs located?
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What is the function of a flower?
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What are the reproductive organs in a flower?
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What is the name of female part of a flower?
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What is the name of female organ of a flower (other than carpel)?
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Where is the male gamete formed in flowering plants?
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Where is the female gamete formed in flowering plants?
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Fill in the following blank with suitable word :
Pollen grains contain ............ gametes of a plant.
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Fill in the following blank with suitable word :
Ovules contain ......... gametes of a plant.
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