Question # 1

Almost all enzymes are:

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Carbohydrates

Fatty acids

Proteins

Vitamins

the failure of replicated chromosomes to separate during meiosis is ............... .

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Disjunction

Non-disjunction

Both a & b

None

The name in Binomial nomenclature are in _____________language.

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English

Latin

French

German

The first step in the cycle of an enzyme is;

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Substrate binds to enzyme

Substrate converted

Products released

Enzyme become free

Examples of protists are _____________

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Protozoan

Euglena

Bacteria

Bath a & b

..................... Organisms cannot carry out photosynthesis.

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Autotrophic

Heterotrophic

Both

None

Oral cavity opens into .............. .

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Phyranx

Lyranx

Trachea

Bronchi

In man Plasmodium multiplies in the

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Wall of stomach

Blood

Skin

Kidney

Which of the following chamber has the thickest walls in human heart?

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Right atrium

Left atrium

Left ventricle

Right ventricle

Which of these statements is correct about the circulatory system?

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It transports hormones

Capillaries have thicker walls than veins

Systemic circulation carries blood to and from the lunges

All of the above are true

One gram of lipids contains energy:

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4 kilocalories

6 kilocalories

9 kilocalories

7 kilocalories

Which of the followings in not true about the opening and Closing of Stomata?

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Light helps in the opening and closing of stomata

K⁺ ions are responsible for the opening and closing of stomata

The osmosis of water is responsible for the opening and closing of stomata

None for these

There are _______________ chromosomes in radish.

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46

18

16

23

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