Question # 1

The body of which organism consists only of RNA?

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Prions

Viroids

Viruses

Algae

In which compound of the leaf cells, chlorophyll is present?

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Stroma

Thylakoids

Plasma membrane

Cytoplasm

Find the correct statement.

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Homologous chromosomes form pairs during mitosis

Chromosomes do not duplicate in the interphase preceding meiosis-I

Homologous chromosomes form pairs during mitosis but not mitosis

Spindles are not required during meiosis

There are about ............. to ........ enzymes in cell.

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1000-2000

1000-2050

2000-6000

2000-3000

When we work hard we suffer form muscle fatigue muscle cells.

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Carry out aerobic respiration and so accumulate more CO₂

Carry out anaerobic respiration and so accumulate lactic acid

Carry out aerobic respiration at faster rate and so accumulate lactic acid

Carry out aerobic respiration at faster rate and so are tired

Pulmonary veins originate from .............. .

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Liver

Lungs

Kidney

Intestine

The water and carbon dioxide are the ................ in photosynthesis.

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Reactants

Products

Both

None

The Generic is followed by ____________

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Species name

Family name

Order name

None

There are ___________major types of animals cells.

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1

2

3

4

The branch of biology which deals with classification and also traces the evolutionary history of organisms is known as:

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Taxonomy

Systematic

Genetics

Histology

Programmed cell death is called ............... .

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Apoptosis

Necrosis

Both a & b

None

Insulin is secreted by gland:

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Pituitary

Pancreas

Adrenal

Thyroid

Penicillin is discovered by.

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Joseph Lister

Edward Jenner

Alexander Flemming

Bu Ali Sina

Appendicular skeleton is composed of:

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120 bones

122 bones

124 bones

126 bones

The sequence of components of a coordinate action is:

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stimulus→ receptors→ coordinator→ response→ effector

receptor→ effector→ stimulus→ receptor→ response

effector→ response→ stimulus→ effector→ receptor

stimulus→ receptor→ co-ordinator→ effector → response

Aspirin is categorized as;

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A drug from animals

A synthetic drug

A drug from plants

A drug from minerals

The bonds which attach muscles to bones are called:

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ligaments

tendons

cartilage

muscles

Which of the following drug is obtained from lants?

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Aspirin

Opium

Liver of fish

Fungi

Dominate alleles are represented by:

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Small letters

Capital letters

Roman Numbers

Numerical Numbers

Outside back bone of double helix is made up:

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Sugar

Phosphate

Sugar Phosphate

None of these

The respiratory disease that is the destruction of the walls of Alveoli is;

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Asthma

Pneumonia

Emphysema

Bronchitis

______ is joint move in only one plane.

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Ball & Socket

Hinge joint

Moveable joint

Slightly moveable joints.

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