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Biology

Biology
Which of the following is not an enzyme?

Pepsin
Oxytocin
Ptyalin
Trypsin

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Biology
Which one is important in photosynthesis to allows plants to absorb energy from light

Chlorophyll
Xanthophyll
Phaeophytin
Carotene

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Biology
Movement of cell against concentration gradient is called

passive transport
osmosis
diffusion
active transport

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Biology
Cellular respiration is best associated with the

Microtubule
Mitochondrion
Golgi apparatus
Ribosome

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Biology
Which one of the following scientists first time saw bacteria through a microscope made by himself ?

Robert Hooke
Louis Pasteur
Anton Van Leeuwenhoek
Robert Virchow

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Biology
A man whose blood group is not known meet with a serious accident and needs blood transfusion immediately. Which one of the blood group mentioned below and readily available in the hospital will be safe for transfusion

AB, Rh-
O, Rh-
O, Rh+
AB, Rh+

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