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 - Science


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



(C) III, IV and V

An embryo has two large cotyledons and one embryo axis or tigellum. The upper end of the embryo axis is the plumule, and the lower end of the embryo axis which projects beyond the cotyledons is the radical. The testa is the thick outer seed coat, and the tegmen is the inner transparent seed coat of seeds.

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2014-2015 (March) All India Set 1

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Match the following:

Column A Column B
(i) Stigma (a) Neuron
(ii) Pepsin (b) Carpel
(iii) Dendrites (c) Protein
(d) Stamen


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

Answer the following question.

What is pollination? Explain the different types of pollination.

Answer the following question.
State significance of pollination.

Fill in the blanks:

A flower may have either male or female reproductive parts. Such a flower is called _________.

Fill in the blank:

The transfer of pollen grains from the anther to the stigma of the same or of another flower of the same kind is known as _________.

Fill in the blanks:

The fusion of male and female gametes is termed as __________

Explain what you understand by sexual reproduction.

Sketch the reproductive parts of a flower.

How does the process of fertilisation take place in flowers?

Tick (√ ) the correct answer:

The reproductive part of a plant is the

Tick (√ ) the correct answer:

The process of fusion of the male and female gametes is called

Tick (√ ) the correct answer:

Mature ovary forms the

State the name of the functional unit concerned with sexual reproduction.

Where are a plant's sex organs located?

What is the function of a flower?

Fill in the following blank with suitable word :

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

Fill in the following blank with suitable word :

The female organ of reproduction in the flower is the...........

One of the following occurs in the reproductive system of flowering plants as well as that of humans. This is :
(a) vas deferens
(b) anther
(c) ovary
(d) style

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

Fill in the blanks:

A carpel consists of ________ , ________ and ________.

Fill in the blanks:

A stamen consists of ______ and ________.

Fill in the blank:

Seeds are formed from________.

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

Stamens make egg cells.

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.

What are the male and female gametes in a flowering plant?

What part is played by stamens and carpels in reproduction?

Draw a labelled diagram of a bisexual flower.

(a) Identify A, B and C in the given diagram and write their functions.

(b) Mention the role of gamete and zygote in sexually reproducing organisms.

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

Sketch the labeled diagram: 

Flower with its sexual reproductive organs 

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

What is cleistogamy? Write one advantage and one disadvantage of it, to the plant.

Pollen grains are formed by _________ division in locules of anthers.

Find an odd one out.

Bisexual : Hibiscus : : Unisexual : ___________

Accessory whorls : Calyx and corolla : : essential whorls : ______________

Pollen tube reaches the embryo sac via style.

Pollen grains from anther are transferred to the stigma.



Give scientific reason.

Flower is a structural unit of sexual reproduction in plants.

Give scientific reason.

Fertilization in plants is called double fertilization.

Distinguish between self-pollination and cross-pollination.

Draw a neat and labelled diagram.

Double fertilization in angiosperms

Explain the sexual reproduction process in plants with a diagram.

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

The male reproductive part of a flower is ______.

Match the following

1. Petal Opuntia
2. Fern Chrysanthemum
3. Phylloclade Attracts insect
4. Hooks Spore
5. Sucker Bignonia

The essential parts of a flower are ______.

Identify the parts A, B, C, and D?

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 anther wall consists of four wall layers where ______

In which of the following manner the arrangement of megaspores in a tetrad is observed in angiosperms?

Which of the following are the chemical components of the wall of pollen tube?

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

Generally, in a pollen tube, which of the following moves to the tip of the tube?

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

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

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

Identify the female gametophyte in angiosperms.

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

Gloriosa superba exhibits ______.

Sperm and egg nuclei fuse due to ______.

Flowers showing ornithophily show few characteristic like ______.

In a flowering plant, archesporium gives rise to ______.

Pineapple fruit develops from ______.

What would be the number of chromosomes in the cells of the aleurone layer in a plant species with 8 chromosomes in its synergids?

Conidia are formed endogenously while zoospores are formed endogenously.

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 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

The ovaries of different flowers may contain

Double fertilization is exhibited by ______

Double fertilization is essential for formation of ______.

Double fertilization means ______.

Sketch and label the essential and accessory whorls of flower.

Give any two examples of agents of pollination.

What is the structural unit of sexual reproduction in plant?

What are the agents for pollination?

The figure below shows the concept of double fertilization. Complete the flow chart showing the progress at each step:

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

Type of sexual reproduction is ______.

The pollen tube usually enters the embryo sac ______.

State the post-fertilisation changes that lead to fruit formation in plants.

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


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