Question # 1

The raw materials in photosynthesis are:

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Water, Oxygen

CO₂, O₂

Water , CO₂

Glucose , Water

When we work hard we suffer from muscle fatigue because muscle cells:

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Carry out aerobic respiration at faster rate and so are tired

Carry out anaerobic respiration and so-accumulate more CO₂

Carry out anaerobic respiration and so accumulate lactic acid

Carry out aerobic respiration at faster rate and so burst

What happens when a mismatched blood group is injected in recipient?

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Antibodies of the recipient's blood destroy donor's RBCs

Antibodies of the donor's blood breakdown recipient's RBCs

Both of these can happen

None of these and such transfusion can be safe

Humans belong to a species called ____________

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Homo

Sapiens

Both and b

None of these

_______________is the granular matrix of nucleus.

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Protoplasm

Nucleoplasm

Cytoplasm

All

Denaturation of enzyme is caused by:

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Increased pH

Decreased pH

Increases in temperature above optimum temperature

Decreases in temperature

Which of the following is a type of leukocyte?

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Macrophage

Eosinophil

Monocyte

All of the above

Reproducitve organ of the Plant is.

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Root

Stem

Leaf

Flower

Fertilizers are of ....... types.

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Two

Three

Four

None

Cytokinesis in a plant cell is characterized by:

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The equal division of homologous chromosomes

A pinching off of the cell membrane to divide the cell

The formation of a cell plate in the cytoplasm

The movement of the chromosomes from the metaphase plate

Diffusion is a _______________ process.

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Slow

Fast

Both

None

The pancreatic juice contains ............. enzymes.

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Two

Three

Four

Five

Chromatids get separated form each other during:

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Prophase

Telophase

Anaphase

Metaphase

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