Science - Reproduction and Growth in Plants
Exam Duration: 45 Mins Total Questions : 30
Which of the following plants reproduce in the same way as sugarcane
i) Bryophyllum (ii) Rose (iii) Hibiscus |
- (a)
(i) and (ii) only
- (b)
(i) and (iii) only
- (c)
(ii) and (iii) only
- (d)
(i), (ii) and (iii)
Which of these labelled parts form the carpel
- (a)
P and Q only
- (b)
P,Q and R only
- (c)
S and T only
- (d)
S,T and R only
What happens after the given stage
- (a)
The ovary splits open.
- (b)
Ovary develops into a fruit and ovules into seeds.
- (c)
The ovules are dispersed
- (d)
Germination of seeds take place
Abhi cut the potato into sections as shown below
- (a)
P and Q only
- (b)
P ,Q and R only
- (c)
S and T only
- (d)
S ,T and R only
Which type of reproduction is shown in the diagram given below?
- (a)
Binary fission
- (b)
Fragmentation
- (c)
Sporulation
- (d)
Budding
The table given below shows the various, ways in which plants reproduce
Plants | Ways of Reproduction |
Xanthium | Z |
X | Spores |
Potato | Y |
Which of the following would you place in X,Y and Z?
- (a)
X Y Z Seeds Suckers Spore - (b)
X Y Z Maple Eyes Seeds - (c)
X Y Z Mucor Eyes Seeds - (d)
X Y Z Drumstick Spores Suckers
Which organism is described in the information given below
(i) Respire anaerobically (ii) Used to make wine (iii) Reproduces by budding |
- (a)
Potato
- (b)
Grapes
- (c)
Yeast
- (d)
Mucor
Which of the following parts of the flower shown below are the anther and stigma respectively?
- (a)
K, L
- (b)
L,M
- (c)
M,N
- (d)
N, K
Which of the following seeds is NOT dispersed by wind?
- (a)
P
- (b)
Q
- (c)
R
- (d)
S
Arrange the sentences given below in order to describe the process of fertilisation
W: The pollen tube grows down through the style reaches the ovary. X: The pollen grain germinates on reaching the stigma . Y: The male gamete moves into the owle to fuse with the ovum. Z: The pollen tube grows out from the pollen |
Which of these options are in the correct order?
- (a)
WXYZ
- (b)
XZWY
- (c)
YWZX
- (d)
WZXY
Which of these plants undergo vegetative reproduction?
- (a)
Tomato, lady's-finger, onion, cauliflower.
- (b)
Potato, ginger, onion, sugarcane
- (c)
Cauliflower, onion, potato, tomato
- (d)
Lady's-finger,onion, ginger, sugarcane
Which of the following is not a characteristic feature of wind pollinated flower
- (a)
Flowers produce huge quantities of pollens
- (b)
Petals are brightly coloured and showy
- (c)
Pollen grains are light and non sticky
- (d)
Stamens are well exposed
Look at the diagram of fruits P and Q. Fruit P has thick and juicy flesh, fruit Q is covered with stiff hairs
The fruits Pand Q are likely to be dispersed by which of the following dispersal agents
- (a)
Wind
- (b)
Water
- (c)
Animals
- (d)
Splitting
The diagram shows the structure of a flower
Where do pollination and fertilisation take place
- (a)
Pollination-X; Fertilisation-Y
- (b)
Pollination-Y; Fertilisation-X
- (c)
Pollination-Y; Fertilisation-Z
- (d)
Pollination-Z; Fertilisation-Y
The box given below shows four different fruits.
Which two fruits are dispersed By animals
- (a)
(i) and (ij)
- (b)
(j) and (iii)
- (c)
(ij) and (iv)
- (d)
(iij) and (iv)
Which of the following options define the term vegetative reproduction?
- (a)
Fertilization of stamens and stigma through pollen grains
- (b)
Development of new plant from spores when favourable conditions are provided.
- (c)
Reproduction of new plants from any part of a plant other than reproductive organs
- (d)
Reproduction of a plant from reproductive organs.
In potatoes, new plants grow from which of the following parts of the stems?
- (a)
Bulbs of the modified stems
- (b)
Buds on the leaflets
- (c)
Modified roots
- (d)
Eyes of the modified stems
Bryophyllum grows from which of the following parts of a plant?
- (a)
Bulbs of the modified stems.
- (b)
Eyes on the tuberous roots
- (c)
Outgrowths from the modified roots
- (d)
Leaf buds on the modified leaves
Which ofthe following constitute a pistil
- (a)
Stigma, anther and ovary
- (b)
Stigma, stamen and ovary
- (c)
Pollen sac, style and ovule.
- (d)
Stigma, style and ovary
The figure given below represents which of the following processes
- (a)
Growth
- (b)
Germination
- (c)
Fertilisation
- (d)
Dispersion
Which of the following statements is true about sticky stigma?
- (a)
To produce scents to attract birds and insects
- (b)
To hold pollen grain strongly
- (c)
There is no known function
- (d)
To attract bees
Which organism multiplication makes the dough to rise?
- (a)
Yeast
- (b)
Mucor
- (c)
Moss
- (d)
Mould
In which of the following modes of reproduction an individual produces offspring without the help of another individual?
- (a)
Sexual reproduction
- (b)
Hybridisation
- (c)
Fertilisation
- (d)
Asexual reproduction
Which of the following processes is represented by the figure given below
- (a)
Fission in yeast
- (b)
Fragmentation in yeast
- (c)
Budding in yeast
- (d)
Sporeformation in yeast
Which of the following are the characteristic feature of fruits dispersed by animals?
- (a)
Hooked and spiny
- (b)
Ory and light
- (c)
Light and powdery
- (d)
Unattractive
The female organ of a flower is called the pistil. Which of the following is not a part of the pistil
- (a)
Stigma
- (b)
Style
- (c)
Pollen grains
- (d)
Ovary with ovules
The landing of pollen grains on the stigma marks the end of which of the following processes
- (a)
Fertilisation
- (b)
Pollination
- (c)
Ovulation
- (d)
Germination
Which of the following is not a vegetatively propagated plant
- (a)
Bryophyllum
- (b)
Hibiscus
- (c)
Sugar cane
- (d)
Cotton plant
Which of the following have fruits that have a parachute of hair called pappus
- (a)
Maple and xanthium
- (b)
Madar and sunflower
- (c)
Balsam and beans
- (d)
Mango and coconut
Where does fertilisation occur in flowers
- (a)
Stigma
- (b)
Style
- (c)
Ovary
- (d)
Pollen grain