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Home » GAT Subject » Aptitude Test - 118
Hassan
1.Hydroponics was demonstrated by?
A. Julius Von Sachs
B. Hoagland
C. Arnon
D. Julius Von Sachs
2.Which of the following roles is not a criterion for essentiality of an element?
A. In its absence, plants do not set seeds
B. Irreplaceable by another element
C. Indirectly involved in the metabolism of the plant
D. In its absence, plants do not set seeds
3.Any mineral ion concentration that reduces that dry wt. of tissues by 10% is called as?
A. critical concentration
B. toxic concentration
C. beneficial concentration
D. critical concentration
4.Which of the following statements if wrong about manganese toxicity?
A. Appearance of brown spots surrounded by chlorotic veins
B. Deficiency of Iron
C. Deficiency of Calcium
D. Appearance of brown spots surrounded by chlorotic veins
5.Which of the following is not a function of soil?
A. It holds water
B. It supplies air to roots
C. It acts as a matrix that destabilizes the plant
D. It holds water
6.Minerals are transported through _________ along the _________ stream of water.?
A. xylem, descending
B. phloem, descending
C. xylem, ascending
D. xylem, descending
7.Which of the following elements do not get translocated to younger parts?
A. N
B. P
C. K
D. N
8.Where do plants obtain most of their carbon and oxygen?
A. From nitrates in the soil
B. From ammonia in the soil
C. From nitrogen in the atmosphere
D. From nitrates in the soil
9.Why can’t all minerals be passively absorbed through the roots?
A. They are present in the soil as charged particles
B. The concentration of minerals in the soil is very high
C. Minerals can never be transported
D. They are present in the soil as charged particles
10.How do most minerals enter the root?
A. Through guttation
B. Through transpiration
C. Through Active absorption
D. Through guttation
11.What are transport proteins?
A. They are restriction points
B. They are control points
C. They are not present in plants
D. They are restriction points
12.After active or passive absorption of all the mineral elements, how are minerals further transported?
A. Transported through guttation
B. Not transported at all
C. Through the transpiration stream
D. Transported through guttation
13.Which of the following is not a chief sink for the mineral elements?
A. Young leaves
B. Developing flower
C. Old leaves
D. Young leaves
14.Where does the unloading of mineral ions occur in the plants?
A. At the root endings
B. At the stem endings
C. At the root hair cells
D. At the root endings
15.Generally, from which of the following parts of the plants, the minerals are remobilised?
A. Senescent parts
B. Growing parts of the plant
C. Younger leaves
D. Senescent parts
16.Which of the following element is not remobilised?
A. Phosphorous
B. Sulphur
C. Nitrogen
D. Phosphorous
17.How do most of the nitrogen travels in the plants?
A. As ammonia
B. As nitrates
C. As inorganic ions
D. As ammonia
18.Which of the following carbohydrates acts as food for the plants?
A. Glucose
B. Sucrose
C. Mannose
D. Glucose
19.What is understood by the term sink in the plants?
A. The part that needs the food
B. The part that synthesises the food
C. The part that is going to die
D. The part that needs the food
20.What is the direction of food in the phloem?
A. Bi-directional
B. Unidirectional
C. Tri-directional
D. Bi-directional
21.The temperature at noon in LHR ,Pakistan was 6 deg on Monday ,4deg on Tuesday,2deg below zero on Wednesday,3deg below zero on Thursday, 0 deg on Friday ,3 deg on Saturday ,and 6 deg on Sunday. What was the average temperature at noon for the week ?
A. 14 deg
B. -2 deg
C. 2 deg
D. 14 deg
22.The average of two numbers is XY.If one number is equal to X ,the other number is equal to___?
A. X
B. 2Y
C. XY-X
D. X
23.If the average marks of three batches of 55, 60 and 45 students respectively is 50, 55, 60, then the average marks of all the students is___?
A. 53.33
B. 54.68
C. 55
D. 53.33
24.The average weight of 16 boys in a class is 50.25 kg and that of the remaining 8 boys is 45.15 kg. Find the average weights of all the boys in the class.
A. 47.55 kg
B. 48 kg
C. 48.55 kg
D. 47.55 kg
25.The average weight of A, B and C is 45 kg. If the average weight of A and B be 40 kg and that of B and C be 43 kg, then the weight of B is___?
A. 17 kg
B. 20 kg
C. 26 kg
D. 17 kg
26.The average of 18 observations was calculated and it was 124. Later on it was discovered that two observations 46 and 82 were incorrect. The correct values are 64 and 28. The correct average of 18 observations is____?
A. 123
B. 137
C. 121
D. 123
27.A person travels from x to y at a speed of 40Km/h and returns by increasing his speed 50%. What is his average speed for both the trips?
A. 36km/h
B. 45km/h
C. 48km/h
D. 36km/h
28.The mean marks of 30 students in a class is 58.5. Later on it was found that 75 was wrongly recorded as 57. Find the correct them.
A. 57.4
B. 57.5
C. 58.9
D. 57.4
29.The average of women and child workers in a factory was 15%yr. The average age of all the 16 children was 8yr and average age of women workers was 22 yrs if ten women workers were married then the number of unmarried women workers were___?
A. 16
B. 12
C. 8
D. 16
30.The average age of students of a class is 15.8 years. The average age of boys in the class is 16.4 years and that of the girls is 15.4 years. The ration of the number of boys to the number of girls in the class is____?
A. 1:02
B. 2:03
C. 3:04
D. 1:02
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