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Maharashtra State BoardSSC (English Medium) 10th Standard

Calyx : Sepals : : Corolla : ________________

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Question

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 [Page 12]

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SCERT Maharashtra Science and Technology Part 2 [English] Standard 10 Maharashtra State Board
Chapter 3 Life Processes in Living Organisms Part - 2
Relate the following | Q 2. | Page 12

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RELATED QUESTIONS

State significance of pollination.


How is the process of pollination different from fertilization?


Where are a plant's sex organs located?


Fill in the following blank with suitable word :

Ovules contain ......... gametes of a plant.


Fill in the following blank with suitable word :

The.......... at the base of the carpel contains egg cells.


What is made in ovary of a flower?


The length of pollen tube depends on the distance between :
(a) pollen grain and upper surface of stigma
(b) pollen grain on upper surface of stigma and ovule
(c) pollen grain in anther and upper surface of stigma
(d) upper surface of stigma and lower part of style


Which of the following statements are true for flowers?
(i) Flowers are always bisexual.
(ii) They contain sexual reproductive organs.
(iii) They are produced in all groups of plants.
(iv) after fertilization they give rise to fruits.


In a bisexual flower, inspite of the young stamens being removed artificially, the flower produces fruit. Explain.


Multiple choice question. Tick (✓) the correct choice:

The male gamete is present inside the which germinates.

  1. the style
  2. the stigma
  3. the anther
  4. the ovary

State whether the following statement is true (T) or false (F):

Flowers which possess stamens and carpel are called unisexual.


Mention the function of Anther.


Give one example each of unisexual and bisexual flowers. Differentiate between the two types of pollination that occur in flowers. What happens when a pollen lands on a suitable stigma? Write about the events that occur till the seed formation in the ovary.


Draw a diagram of the longitudinal section of a flower exhibiting germination of pollen on stigma and label (i) ovary, (ii) male germ-cell, (iii) female germ-cell and (iv) ovule on it.


Identify A, B, C and D in the given diagram and write their names.


A student is asked to study the different parts of an embryo of pea seeds. Given below are the essential steps for the experiment :
(I) Soak the pea seeds in plain water and keep them overnight.
(II) Cut open the soaked seed and observe its different parts.
(III) Take some pea seeds in a petri dish.
(IV) Drain the excess water. Cover the seeds with a wet cotton cloth and leave them as it is for a day.
The correct sequence of these steps is
(A) III, I, IV, II
(B) III, IV, I, II
(C) III, I, II, IV
(D) III, II, I, IV


Draw a diagram of a pistil showing pollen tube growth into the ovule and label the following:

Pollen grain, male gamete, female gamete, ovary.


Describe an activity to demonstrate phototropism.


Which of the following is not an unisexual flower?
a) Coconut
b) Papaya
c) Gulmohor
d) Maize


Explain sexual reproduction in plants. 


Draw a diagram of the longitudinal section of a flower and label the following parts.


Differentiate between self-pollination and cross-pollination.


What is meant by pollination?


Pollen tube reaches the embryo sac via style.


Define.

Inflorescence


Observe the figure below. Write functions of the labelled parts.


Which of the following is the outermost protective layer of anther?


Which type of development is observed in male gametophytes of plants?


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


Gloriosa superba exhibits ______.


Flowers showing ornithophily show few characteristic like ______.


In a flowering plant, archesporium gives rise to ______.


In human beings, fertilization occurs in the ______


Which out of the following processes does not lead to the formation of clones.


Which among the following statements are true for unisexual flowers?

  1.  They possess both stamen and pistil
  2. They possess either stamen or pistil
  3. They exhibit cross pollination
  4. Unisexual flowers possessing only stamens cannot produce fruits

State the number of sets of chromosomes present in a zygote.


Double fertilization is essential for formation of ______.


In a plant flower the female whorl is ______.


Sexual maturation of reproductive tissues and organs are necessary link for reproduction. Elucidate.


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