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1. Oxygen and energy requirements of the autotrophic organism are fulfilled by photosynthesis.
2. Glycogen, produced after photosynthesis, is utilized for providing energy to the plant and extra is stored in the form of starch.
above is correct?
2. Glycogen, produced after photosynthesis, is utilized for providing energy to the plant and extra is stored in the form of starch.
above is correct?
Anonymous Quiz
17%
1 only
22%
2 only
56%
1&2 only
5%
None
2. Consider the following statements about photosynthesis and find the incorrect one.
0/1
a. Absorption of light energy is done by chlorophyll.
b. Conversion of light energy to chemical energy and splitting of water molecules into hydrogen and oxygen happens during this process.
c. oxidation of carbon dioxide to carbohydrates happens.
d. desert plants take up carbon dioxide at night and prepare an intermediate which is acted upon by the energy absorbed by the chlorophyll during the day.
0/1
a. Absorption of light energy is done by chlorophyll.
b. Conversion of light energy to chemical energy and splitting of water molecules into hydrogen and oxygen happens during this process.
c. oxidation of carbon dioxide to carbohydrates happens.
d. desert plants take up carbon dioxide at night and prepare an intermediate which is acted upon by the energy absorbed by the chlorophyll during the day.
3. Which one among the following is a micronutrient present in soil for various crops ?
Anonymous Quiz
14%
(a) Calcium
31%
(b) Manganese
31%
(c) Magnesium
24%
(d) Potassium
4. Study the following statements.
I. Excretion of water in the form of liquid droplets from leaves or uninjured plant parts is called guttation.
II. Transpiration helps in the ascent of sap.
III. Small opening in the leaf meant for gaseous exchange and transpiration is called stomata.
Which of the statements given above are correct ?
I. Excretion of water in the form of liquid droplets from leaves or uninjured plant parts is called guttation.
II. Transpiration helps in the ascent of sap.
III. Small opening in the leaf meant for gaseous exchange and transpiration is called stomata.
Which of the statements given above are correct ?
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5. First step of photosynthesis is:
Anonymous Quiz
74%
(a) activation of chlorophyll by sunlight.
14%
(b) oxygen comes out from water.
5%
(c) formation of carbohydrates
6%
(d) fixation of carbon dioxide.
🔥1
6. A student adds starch solution into a petri dish containing graded potato. It turns bluish black a adding a solution. The solution was of:
Anonymous Quiz
11%
a. Benedict's solution
59%
b. Iodine
25%
c. Copper sulphate solution
5%
d. Dye solution
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7. Consider the following statements:
1. Complete digestion of the food take place in small intestine.
2. Small intestine receives the secretions of the liver and the pancreas.
3. Amylase helps in the digestion of fats.
Which of the above statement is/are correct?
1. Complete digestion of the food take place in small intestine.
2. Small intestine receives the secretions of the liver and the pancreas.
3. Amylase helps in the digestion of fats.
Which of the above statement is/are correct?
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❤1
1. Bleeding of gums, falling of teeth, fragile bones, delayed wound healing occur due to the deficiency of which one of the following vitamins?
Anonymous Quiz
35%
a) Vitamin C
34%
(b) Vitamin K
24%
c) Vitamin D
7%
(d) Vitamin B
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2. Dolomite powder is applied in some agricultural lands. The purpose of applying it is to
Anonymous Quiz
29%
(a) increase the pH of the soil
23%
(b) lower the pH of the soil
39%
(c) increase the phosphorus content of the soil
8%
(d) increase the nitrogen content of the soil
3. Excessive use of which of the following fertilizers may be responsible for the presence of a toxic substance in groundwater?
Anonymous Quiz
17%
(a) Nitrogen
23%
(b) Phosphate only
11%
(c) Potassium only
49%
(d) Phosphate and Potassium
4. Which one among the following is a micro-nutrient present in soil for various crops?
Anonymous Quiz
9%
(a) Calcium
31%
(b) Magnesium
32%
(c) Manganese
29%
(d) Potassium
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5. Cobalt is associated with
Anonymous Quiz
24%
(a) growth hormone
29%
(b) vitamin B
23%
(c) hemoglobin
23%
(d) intestinal enzymes
6. Which one of the following elements is present in green pigment of leaf?
Anonymous Quiz
38%
(a) Phosphorus
41%
(b) Magnesium
18%
(c) Iron
4%
(d) Calcium
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