Question # 1

What anatomical structure connects the stomach and the mouth?

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Trachea

Spinal column

Hepatic duct

Esophangus

Chromosomes consist of?

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DNA and lipids

RNA and amino acids

RNA and sugar

DNA and proteins

In plants water is absorbed by the root hairs by a process called?

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Respiration

Transpiration

Osmosis

Perspiration

Siemens is a unit of:

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Electrical Field Strength

Electrical conductivity

Electromagnetic inductance

Electrical Resistance

Which of he following is a parasitic plant?

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Marchantia

Kelp

Mushroom

Pteris

A sum of Rs.2600 is lent out in two parts in such a way that the interest on one part at 10% for 5 years is equal to that on another at 9% for 6 years. the sum lent out at 10%is

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Rs. 1150

Rs. 1250

Rs.1350

Rs.1450

Human breath is visible in winter but not in summer because:

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Water vapour in breath condenses in cold air making it visible

The difference in outside pressure gives visibility to breath

Breath contains certain impurities and visible matters

Nine if these

The enzyme, ptyalin, is a catalyst for the metabolism of which of these food?

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Fats

White meats

Proteins

Starches

A glass chimney stops an oil lamp from smoking because:

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It increases the supply of oxygen to the flame by convection

The heat produced ensures complete

Both to these

Neither of these

The metal is mostly used in plating, to produce a hard easily polished surface Combined with lead, it produces a yellow pigment.

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Tungsten

Bronze

Chromium

Copper

Which of the following vitamins will be the most common in fish liver oils, milk, and eff yolk?

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Vitamin A

Vitamin D

Vitamin E

Vitamin K

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