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Mixed bag-Science

Total questions: 11

Worksheet time: 4mins

Name
Class
Date
1.

Nutrition is the process of ________ of food and its proper ____________ in the body.

(a)  

2.

What is the formula for photosynthesis?

a)

6CO2 +3H2O --(in the presence of sunlight and chlorophyll)--> C6H6015 + 6O2

b)

6CO2 +6H2O --(in the presence of sunlight and Chlorophyll)--> C6H12O6 + 6O2

c)

Carbon dioxide + Water in the presence of sunlight and Chlorophyll equals to Glucose

d)

6CO2 +6H2O --(in the precedence of sunlight and clorophyll)--> C6H15O6 + 6O2

3.

What is the function of guard cell in the stomata?

a)

The guard cell regulate opening and closing of the stomata

b)

They increase surface area of roots, so they can absorb more water

c)

Replenish nitrogen in the soil

d)

They transport water and soluble nutrients through the plant

4.

In chemistry, salt refers to ________________________________________

a)

Himalayan pink salt

b)

the pH indicator

c)

the product of the reaction between an acid and a base

d)

The product of Neutralization

5.

State which of the following statements are true.

a)

Acids are the only type of substances which are corrosive.

b)

Acids and bases are usually not corrosive in nature.

c)

Salts can cause severe burns.

d)

Acids and bases can both be corrosive and can cause severe burn.

6.

Minerals acids are usually stored in _________ or __________ containers.

(a)  

7.

Who coined the term Photosynthesis?

a)

Robert Hooke

b)

William Gilbert

c)

David Copperfield III

d)

Charles Reid Barnes

8.

Xylem is part of _________________ bundle

a)

Vascular

b)

Scalpular

c)

Phloem

d)

Spinach

9.

What is the main function of root hair?

a)

to increase the surface the area of roots.

b)

they are found in great numbers near the tips of roots

c)

controlling the passage of substance going in and out of the cell.

d)

to help in the exchange of nitrogen.

10.

___________ paper which is made out of _________ is used to identify if a certain substance is acidic, basic or neutral.

(a)  

11.

Choose the option where all the conditions required for Photosynthesis is mentioned.

a)

Light, soil, water, chlorophyll, china rose

b)

Chloroplast, light , water, carbon oxide

c)

Carbon dioxide, chlorophyll, water, light

d)

Carbon dioxide, oxygen, light, methyl orange