Advertisements
Advertisements
प्रश्न
Fill in the blanks and rewrite the completed statements:
Lymph flows in _______________ direction.
Advertisements
उत्तर
Lymph flows in one direction.
APPEARS IN
संबंधित प्रश्न
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
Give one example of a unisexual flower.
State the name of the functional unit concerned with sexual reproduction.
Name the part made up of the stigma, style and ovary.
Where are a plant's sex organs located?
Fill in the following blank with suitable word :
The male organ of reproduction in the flower is the.......... .
Fill in the following blank with suitable word :
The term used to refer to the transfer of pollen from the stamen of one flower to the carpel of another flower of the same species is...........
Draw a neat sketch of the stamen of a flower. Mark in it filament and anther.
Draw a neat sketch of the carpel of a flower. Mark in it stigma, style and ovary.
Explain the term 'fertilisation'.
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
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)
In the figure given alongside, the parts marked A, B and C are sequentially :
(a) cotyledon, plumule and radicle
(b) plumule, radicle and cotyledon
(c) plumule, cotyledon and radicle
(d) radicle, cotyledon and plumule
The correct sequence of reproductive stages occurring in flowering plants is ______
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.
Fill in the blank by selecting suitable word:
A flower bearing only male or female parts is known as __________ flower.
Fill in the blanks:
A carpel consists of ________ , ________ and ________.
Find the odd-one out, giving reason:
Anther, pollen grain, ovule male gamete
Mention the function of Stigma.
What are the male and female gametes in a flowering plant?
What is phototropism?
Explain sexual reproduction in plants.
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.
In which part of the flower germination of pollen grains takes place?
The anther wall consists of four wall layers where ______
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?
The 3-celled egg apparatus at the micropylar end comprises of ______
Gloriosa superba exhibits ______.
The seed that contains the future plant is called the ______
In a bisexual flower inspite of the young stamens being removed artificially, the flower produces fruit. Provide a suitable explanation for the above situation.
Where is the zygote located in the flower after fertilization?
What is the structural unit of sexual reproduction in plant?
The figure below shows the concept of double fertilization. Complete the flow chart showing the progress at each step:
Given below is a diagram of a germinating seed. Label the parts that:
- gives rise to future shoot.
- gives rise to future root system.
- stores food.
