Biology MCQs

Question 1

During rainy season wooden doors are difficult to open or closure because of ?

Accepted Answer

Imbibition

Answer

Plasmolysis

Answer

Diffusion

Answer

Osmosis

Question 2

Which statement concerning the diagnosis of ADHD is true?

Accepted Answer

Boys are more likely to be diagnosed with ADHD than girls

Answer

Most children "outgrow" symptoms of ADHD

Answer

About 20 percent of school-age children are diagnosed with ADHD

Answer

Racial minority status is a good predictor of being diagnosed with ADHD

Question 3

According to Erikson, the goal of adolescence is to

Accepted Answer

Both a & b

Answer

Independent identity

Answer

Explore who they are

Answer

None of the above

Question 4

Which one of the following weeds is effective in controlling water pollution caused by industrial effluents?

Accepted Answer

Parthenium

Answer

Elephant grass

Answer

Water hycinth

Answer

Mogar grass

Question 5

Lichens are the best indicator of

Accepted Answer

Air pollution

Answer

Water pollution

Answer

Soil pollution

Answer

Noise pollution

Question 6

Which one of the following processes takes place in lakes during eutrophication?

Accepted Answer

Excessive entry of nutrient into water

Answer

Rapid destruction of algal growth

Answer

Excessive availability of dissolved oxygen

Answer

Loss of dissolved nutrients from water

Question 7

Which organelles supply energy to the cell?

Accepted Answer

Mitochondria

Answer

Cytoplasm

Answer

Ribosomes

Answer

None of the above

Question 8

Who of the following is known as the Father of Biology?

Accepted Answer

Aristotle

Answer

Darwin

Answer

Lamarck

Answer

Theophrastus

Question 9

Which is not a function of the cell membrane?

Accepted Answer

Helps substances pass from the cytoplasm into the nucleus

Answer

Keeps materials within the cell separated from the environment outside the cell

Answer

Helps control the movement of materials into and out of the cell

Answer

Allows the cell to change shape under pressure