371. What is the most important stimulant in tea leaves?
A. Brucine
(B. Caffeine)
C. Phenylalanine
D. Theine
372. A large number of identical plants can be obtained in a short span of time through?
(A. Tissue culture technique)
B. Hydroponics method
C. Stem cuttings
D. A large number of seeds of a single plant
373. Which of the following food items is rich in iron?
(A. Apple)
B. Rice
C. Orange
D. Pulses
374. What rays of sunlight are mostly utilized by chlorophyll in photosynthesis?
(A. Red)
B. Yellow
C. Green
D. Blue
375. Opium is obtained from which part of the poppy plant?
(A. Unripe fruits)
B. Flower
C. Leaves
D. Roots
376. Which of the following is not a fruit?
(A. Mustard)
B. Orange
C. Pear
D. Apple
377. Euglena belongs to the kingdom___________?
A: Fungi
B: Monera
(C: Protista)
D: None of them
378. Viruses are considered living organisms because__________?
A: They can be crystallized
B: They occur in plants and animals
(C: They contain DNA and can be reproduced)
D: None of these
379. All of the following are elements that plants need in very small amounts except___________?
(A: Iron)
B: Hydrogen
C: Chlorine
D: Copper
380. Capillaries are the example of_________?
A: Organ System
B: Cell
(C: Organ)
D: Tissue
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