Cell biology

The measurement of warmness and coldness of a substance is called

• a)Thermometer

• b) Temperature

• c) barometer

• d) thermoflask

Two commonly used thermometer

(a)  

The body temperature of a healthy man is

(a)  

The process of solid converted directly to gas is called

(a)  

The process of cooling a hot,concentrated soln of a substance to obtain crystals is called

• a) sublimation

• b) condensation

• c) crystallization

• d)purification

Changes that repeat themselves after a definite interval of time are called

(a)  

(a)   are the basic building blocks of an organism

Which is known as powerhouse of the cell?

(a)  

Which of the following is not present in plant cell

• a) chloroplast

• b) mitochondria

• c) ribosome

• d) centriole

Which cell organelle controls all the processes and chemical reactions that takes place inside the cell?

• a) mitochondria

• b) nucleus

• c) chloroplast

• d) cell membrane