What is a hypothesis...? Mcqs

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What is a hypothesis...?

(A) The same thing as an unproven theory
(B) A tentative explanation that can be tested and is falsified

(C) A verifiable observation
(D) A fact based on quantitative data that is falsified

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Period of extensive metabolic activity, in which cell grow, enzymes are synthesizes...?

(A) S phase
(B) M phase

(C) G2 phase
(D) G1 phase

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In night, when photosynthesis is stopped, plants__________...?

(A) take in Carbon Dioxide
(B) give off Oxygen

(C) give off Carbon Dioxide
(D) None of these

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The process of photosynthesis produces glucose and ______...?

(A) Carbon dioxide
(B) Oxygen

(C) Water
(D) Carbo monoxide

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What is an example of a synthesis reaction...?

(A) Water decomposing into Hydrogen and Oxygen
(B) Carbon combining with Oxygen to form Carbon Monoxide

(C) Nitrogen and Oxygen combining to form Nitrogen Dioxide
(D) Hydrogen and Oxygen combining to form water

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Which of the following blood pressure readings indicates hypotension (low blood pressure)...?

(A) 140/90 mmHg
(B) 120/80 mmHg

(C) 90/60 mmHg
(D) 60/90 mmHg

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During the daytime for the photosynthesis, plants require ______...?

(A) O2
(B) N2

(C) CO2
(D) H2

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The association between two different types of organism which get benefit to each other, cannot live without each other is called...?

(A) Parasitism
(B) Commensalism

(C) Mutualism
(D) Predation

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Photosynthesis takes place in presence of the following light...?

(A) Only in green light from sun
(B) Only in sunlight from the sun

(C) Only in high intensity of light from the sun
(D) In visible light obtained from any source

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Fundamental molecule produced during photosynthesis is ______...?

(A) Glucose
(B) Amino acid

(C) Fatty acid
(D) Nucleotide

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Recognize the factor which does not affect the process of photosynthesis...?

(A) O2
(B) CO2

(C) H20
(D) Light

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Which one of the following wavelengths of light is most effective in photosynthesis...?

(A) Blue
(B) Green

(C) Orange
(D) Yellow

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Photosynthesis occurs during day time because it depends on...?

(A) Day activities
(B) Sunlight

(C) Brightness
(D) None

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What is the photosynthesis equation in plants...?

(A) 6CO2 + 6H2O → C6H12O6 + 6O2
(B) 6CO2 + 6H2O → C6H12O6 + 6O3

(C) 6CO2 + 6O2 → C6H12O6 + 6H2O
(D) 6H2O + 6O2 → C6H12O6 + 6CO2

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During a total solar eclipse the rate of Photosynthesis___________...?

(A) Increase
(B) Decrease

(C) Remain Constant
(D) None of them

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The materials required for photosynthesis are _______...?

(A) Water (H2O) and Oxygen (O2)
(B) Water (H2O) and Carbon Dioxide (CO2)

(C) Carbon Dioxide (CO2) and Light Energy
(D) Glucose (C6H12O6) and Oxygen (O2)

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Which of the following gases do plants and trees give out during photosynthesis...?

(A) Hydrogen
(B) Nitrogen

(C) Oxygen
(D) Carbon dioxide

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In which part of the Plant does photosynthesis take place...?

(A) Flowers
(B) Roots

(C) Stem
(D) Leaves

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The theorem "In a right-angle triangle, the area of the square of the hypotenuse is equal to the sum of the areas of the squares of the other two sides", was discovered by:...?

(A) Archimedes
(B) Pythagoras

(C) Isaac Newton
(D) Socrates

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Which of the following strongly supports the endosymbiont hypothesis of eukaryotic evolution...?

(A) Mitochondria and chloroplasts both have DNA
(B) Mitochondria is free living

(C) Both A and B
(D) None of the above

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The source of oxygen in photosynthesis is...?

(A) water
(B) salts

(C) minerals
(D) glucose

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Which one of the following affects the photosynthesis and growth of plants...?

(A) Hydrogen
(B) Oxygen

(C) Nitrogen
(D) Acid Rain

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Which gas is used to extract energy from food in photosynthesis...?

(A) O2 (Oxygen)
(B) CO2 (Carbon Dioxide)

(C) H2O (Water)
(D) N2 (Nitrogen)

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