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Maharashtra State BoardSSC (English Medium) 10th Standard

Calyx : Sepals : : Corolla : ________________ - Science and Technology 2

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Calyx : Sepals : : Corolla : ________________

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Calyx : Sepals : : Corolla : Petals

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Chapter 3: Life Processes in Living Organisms Part - 2 - Relate the following

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SCERT Maharashtra Science and Technology 2 [English] 10 Standard SSC
Chapter 3 Life Processes in Living Organisms Part - 2
Relate the following | Q 2

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RELATED QUESTIONS

A student was asked to observe and identify the various parts of an embryo of a red kidney bean seed. He identified the parts and listed them as under:

I. Tegmen

II. Testa

III. Cotyledon

IV. Radicle

V. Plumule

The correctly identified parts among these are

(A) I, II and III

(B) II, III and IV

(C) III, IV and V

(D) I, III, IV and V


Name the parts A, B and C shown in the diagram and write their functions.


In the following diagram showing the structure of embryo of a dicot seed, what are the parts marked I, II and III sequentially?


Name the parts A, B and C shown in the following diagram and state one function of each.


Give one example of a unisexual flower.


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


The fusion of male and female gametes is termed as ______.


What is the name of female organ of a flower (other than carpel)?


Where is the female gamete formed  in flowering plants?


Fill in the following blank with suitable word : 

Pollen grains contain ............ gametes of a plant.


Fill in the following blank with suitable word :

The ovule becomes a .......... after fertilisation.


 Draw a neat sketch of the stamen of a flower. Mark in it filament and anther.


What is seed? What are the parts of a seed? Explain with the help of a labelled diagram.


What changes take place in the flower after fertilisation which lead to the formation of seeds and fruit?


Which of the following is the correct sequence of events of sexual reproduction in a flower?
(a) pollination, fertilisation, seed, embryo
(b) seed, embryo, fertilisation, pollination
(c) pollination, fertilisation, embryo, seed
(d) embryo, seed, pollination, fertilisation


Which of the following statements are true for sexual reproduction in flowering plants?
(i) it requires two types of gametes
(ii) fertilisation is a compulsory event
(iii) it always results in the formation of zygote
(iv) offsprings formed are clones

(a) (i) and (iv)
(b) (i), (ii) and (iv)
(c) (i), (ii) and (iii)
(d) (ii), (iii) and (iv)


What is a flower ? Draw a neat labelled diagram showing the L.S. of a typical flower.


What part is played by stamens and carpels in reproduction?


You have to perform the experiment, "To identify the different parts of an embryo of a gram seed." Describe the procedure that you would follow.


Draw a diagram of the longitudinal section of a flower and label on it sepal, petal, ovary and stigma.


Sketch the labeled diagram: 

Flower with its sexual reproductive organs 


Explain sexual reproduction in plants. 


A student is observing the temporary mount of a leaf peel under a microscope. Draw a labelled diagram of the structure of stomata as seen under the microscope


__________ is present in unisexual flower.


Define.

Inflorescence


The essential parts of a flower are ______.


Write the events involved in the sexual reproduction of a flowering plant.

Discuss the first event and write the types.


Write the events involved in the sexual reproduction of a flowering plant.

a. Discuss the first event and write the types.

b. Mention the advantages and the disadvantages of that event.


In which part of the flower germination of pollen grains takes place?


The 3-celled egg apparatus at the micropylar end comprises of ______


The flower of the Hibiscus plant is ______ 


Complete the table

Carly x  ______  ______
 ______ petal attract insects
Androecium  ______ Male reproductive part
 ______ ______ Female reproductive part.

Which among the following statements are true for sexual reproduction in flowering plants?

  1. It requires two types of gametes
  2. Fertilisation is a compulsory event
  3. It always results in formation of zygote
  4. Offspring formed are clones

Is the chromosome number of zygote, embryonal cells and adult of a particular organism always constant? How is the constancy maintained in these three stages?


Where is the zygote located in the flower after fertilization?


Double fertilization is exhibited by ______


In a plant flower the female whorl is ______.


What are the agents for pollination?


Type of sexual reproduction is ______.


  • Assertion: Primary endosperm nucleus is diploid.
  • Reason: It is the product of double fertilisation.

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