Question # 1

Cellulose is present in:

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Primary wall

Secondary lamella

None of above

____________ is a co-enzyme.

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NAD⁺

NADH

AMP

None

To what category of molecules do enzymes belong?

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Carbohydrates

Lipids

Nucleic acids

Proteins

Which one of these elements has the highest percentage in livhg organisms.

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Carbon

Hydrogen

Oxygen

Nitrogen

Photosynthesis is a /an _____ process.

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Metabolic

Catabolic

Anabolic

Chemical

Goiter is a disease caused as a result of deficiencies of ........... .

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Iodine

Iron

Calcium

Phosphorus

When we add more substrate to an already occurring enzymatic reaction and there is no increase in the rate of reaction what would you predict?

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All active sites have been occupied by substrate molecules

The enzyme molecules have denatured

More substrate acted as inhibitor

More substrate has disturbed the pH of the medium

.................. is most abundant substance in human body.

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Water

Carbon

Nitrogen

Phosphorus

A protein found in the rod cells of retina of eye is:

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Trypsin

Pepsin

Rhodopsin

None of these

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

Plant cell have large number of stacks known as:

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Protostomes

Dictostomes

Distyosomes

All

Mescaline is obtained from a plant:

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Datura

Cannabis

Morning Glory

Cactus

Transmission of characteristics from parents to offsprings is called as:

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Replication

Inheritance

co-dominance

Mutation

Seedless fruits plants are propagated by:

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cloning

suckers

cutting

grafting

In the structure of DNA Adenine of one nucleotide pairs with which of the nitrogenous base opposite nucleotide:

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Guanine

Cytosine

Thymine

Uracil

In an adult man the average urine formation in a day is.

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4 litre

1.3 litre

1.4 litre

3 litre

The process in which there is incomplete oxidation reduction of gluceose.

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Photosynthesis

Circulation

Fermentation

Transpiration

------------ is use for the cleaning of sewage water.

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Bacteria

Virus

Algae

Fungi

What happens during Exhalation?

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Ribs muscles relax

Diaphragm become dome shaped

Pressure on lungs increased

All of these

The bands of connective tissue which prevent dislocation of bones at joints are:

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ligaments

tendons

cartilage

muscles

These are unit of inheritance.

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Genes

Alleles

Phenotype

Genotype

Inside testes, sperms are produced in:

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Vas deferencs

Sperm duct

Seminiferous tubules

Collecting duct

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