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Biology 11 Chapter - 10
Form and Function in Plants -17
1.
The critical factor in the experiments on tobacco and soybean was?
a) The day length
b) The humidity
c) The soil
d) The water
2.
The Maryland mammoth tobacco plant flowered in?
a) Mid of December
b) February
c) June
d) July
3.
The Maryland mammoth tobacco was a?
a) Short day plant
b) Long day plant
c) Both of these
d) None of these
4.
In the experiments of garner and allard, the soybean plants flowered in?
a) Late summer
b) Mid summer
c) Late winter
d) Late spring
5.
Which one of the following is a long day plant?
a) Spinach
b) Chrysanthemum
c) Maryland mammoth tobacco
d) Cocklebur
6.
Which one of the following is a short day plant?
a) Cocklebur
b) Sugar beet
c) Clove
d) Lettuce
7.
Plants that flower only when the day length exceeds from the critical length period are called as?
a) Long day plants
b) Short day plants
c) Day neutral plants
d) Perennial plants
8.
The critical lengths for both long day and short day plants tend to fall in the range of?
a) 12 - 14 hours
b) 9 - 11 hours
c) 8 - 10 hours
d) 12 - 15 hours
9.
The plants in which the flowering is not affected by day length or darkness are called as?
a) Day neutral plants
b) Short day plants
c) Long day plants
d) None of these
10.
Which one of the following is not the day neutral plant?
a) Cabbage
b) Tomato
c) Pansy
d) Rose
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