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महाराष्ट्र राज्य शिक्षण मंडळएस.एस.सी (इंग्रजी माध्यम) इयत्ता १० वी

Name the Swollen Lower Part of the Carpel. - Science and Technology 2

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प्रश्न

Name the swollen lower part of the carpel.

उत्तर

An ovary is the swollen lower part of the carpel.

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2016-2017 (March)

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संबंधित प्रश्‍न

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


How does fertilisation occur in flowers? Name the parts of the flower that develop into (i) seed, and (ii) fruit after fertilisation.


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


State the function of flowers in the flowering plants.


How is the process of pollination different from fertilization?


Where are the pollen grains produced?


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


 Give some examples of different modes of fertilisation in nature?


Name the part of a seed which contains stored food.


In tobacco plant, the male gametes have 24 chromosomes.

 What is the number of chromosomes in the zygote?


What is meant by 'unisexual flowers' and 'bisexual flowers'? Give two examples of each.


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


In what ways is fertilisation in a plant different from fertilisation in a human?


Put a tick mark (✓) against the correct alternative in the following statement

Reproductive whorls of a flower are:


Fill in the blank by selecting suitable word:

A flower that bears both the male and the female parts is known as __________ flower.


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


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):

Stamens make egg cells.


Mention the function of Anther.


Draw a labelled diagram of a bisexual flower.


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.


Distinguish between unisexual and bisexual flowers giving one example of each. Draw a diagram showing process of germination of pollen grains on stigma and label the following parts:

(a) Female germ cell

(b) Male germ cell

(c) Ovary


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


What is meant by pollination?


What does germination mean?


Give scientific reason.

Fertilization in plants is called double fertilization.


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


The essential parts of a flower are ______.


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.


The ovule of an angiosperm is technically equivalent to ______


How many middle layers are generally present in the wall of the anther lobes?


What would be the number of chromosomes of the aleurone cells of a plant with 42 chromosomes in its roots tip cells?


In a flowering plant, archesporium gives rise to ______.


The flower of the Hibiscus plant is ______ 


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
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Sketch and label the essential and accessory whorls of flower.


What is puberty?


Given below is a diagram of a germinating seed. Label the parts that:

  1. gives rise to future shoot.
  2. gives rise to future root system.
  3. stores food. 


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