Science Quiz

What is the function of cell membrane in a cell?

• Control what goes in and out in the cell

• The power house of a cell

• Control the activity of cell

• Give shape to the cell

Who invented calculus?

• Stephen Hawking

• Albert Einstein

• Isaac Newton

• Michael Faraday

In which part of the respiratory system, gaseous exchange takes place?

• Red blood cells

• Mitochondria

• White blood cells

• Alveoli

A student mixed two chemicals to allow them to react. The temperature before the reaction was 25 ° C. The temperature after the reaction was 18° C. Which of the following is(are) true?

• The temperature changed

• There was an increase the temperature

• It is an endothermic reaction

• It is an exothermic reaction

Choose the appropriate option(s) giving an example of exothermic reactions.

• Formation of snow

• Melting of ice cubes

• Galvanisation

• The spreading of corona

Which is a better fuel in terms of energy per liter?

• Petrol

• Diesel

Photosynthesis is an exothermic reaction

• True

• False

When you have been swimming and you come out of the pool, you may feel cold. Why is this?

• Because Cardi B decided to create a swimming pool for 7 Beta

• Because of endothermic reactions

• Because of exothermic reactions

• Because the air is cooler around you

Is cellular respiration endothermic or exothermic?

• Endothermic

• Exothermic

If magnesium is gently heated, it forms

• magnesium oxide

• magnesium nitride

• magnesium carbonate

• all the above