10 - Science - 04. Biology - Reproduction In Plants
Prepared By Mr. S. Ravikumar, B. T. Asst. , GHS, Arangaldhurgam, Vellore District. & www. Padasalai. Net
- 1.This is the one of the methods of reproduction in unicellular organisms like amoeba and bacteria in which they split into two equal halves and produce new ones is called_________
- A.
Fragmentation
- B.
Binary fission
- C.
Budding
- D.
Spore formation
- 2.In sexual reproduction of lowering plants, the first event involved in this is ___________
- A.
Fertilization
- B.
Germination
- C.
Regeneration
- D.
Pollination
- 3.Which of the following statement is true?
- A.
Thin walled non mobile spores are called zoospores
- B.
A motile asexual spore produced by some algae bacteria and fungi are Akinetes
- C.
Uninucleate non-motile asexual spores are produced by the fungus are called conidia
- D.
Thick walled vegetative cells produced by the algae during adverse conditions are called aplanospores
- 4.The fertilized ovary is a fruit. The fruit develops from a single lower with multi carpellary, apocarpous superior ovary is _____
- A.
Aggregate fruit
- B.
Composite fruit
- C.
Simple fruit
- D.
Multiple fruit
- 5.If a water soaked seed is pressed, a small drop of water comes out through _________
- A.
Stomata
- B.
Lenticel
- C.
Micropyle
- D.
Radicle
- 6.The mango fruit is called as stone fruit. because it has _________
- A.
Skinny epicarp
- B.
Stony mesocarp
- C.
Fleshy endocarp
- D.
Hard endocarp Hard endocarp Hard endocarp
- 7.Pick out the wrong statement.
- A.
In a dicot seed there is a short longitudinal whitish ridge is called the raphae
- B.
There is a minute opening in dicot seed is known as micropyle.
- C.
The rudimentary stem portion known as radicle.
- D.
The rudimentary root portion is called radicle
- 8.Consider the following statement regarding the dispersal of fruit by wind and select the correct answer.
- A.
Fruits and seeds dispersed with a sudden jerk by an explosive mechanism.
- B.
Fruits of tridax are carry a persistent calyx modified into pappus.
- C.
The fruits of xanthium have sharp pointed stiff hooks.
- D.
The mesocarp of coconut is fibres.
- 9.The product of triple fusion which acts as nutritive tissue for the development of embryo is ______
- A.
Zygote
- B.
Placenta
- C.
Scutellum
- D.
Endosperm
- 10.The disadvantage of self pollination is _______
- A.
There is no wastage of pollen grains
- B.
The seeds are less in number
- C.
Self pollination is sure in bisexual flowers
- D.
Flowers need not depend on agents of pollination
Questions: 15 | Attempts: 4869 | Last updated: Dec 17, 2020
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Sample QuestionThe two hormones of birth control would be ___________.
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Sample QuestionThis is the one of the methods of reproduction in unicellular organisms like amoeba and bacteria in which they split into two equal halves and produce new ones is called_________
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