B5

Question 1

Communicable disease

Answer 1

Diseases causes by pathogens that can be passes from one organism to another

Question 2

Microorganisms

Answer 2

Organisms that are usually single clled and can only be seen using a microscope. They include bacteria, fungi, viruses and protists

Question 3

Non communicable disease

Answer 3

Are not infections and cannot be passed one organism to another

Question 4

Pathogens

Answer 4

Microorganisms that cause diseases

Question 5

STD

Answer 5

Transmitted from an infected person to an uninfected person by sexual contact

Question 6

Vaccine

Answer 6

Dead or inactive pathogenic material used in vaccination to develop immunity to a disease in a healthy person

Question 7

Virus

Answer 7

Pathogens that are much smaller than can only reduce inside living cells of other organisms

Question 8

Agar gel

Answer 8

Widely used gel medium uses dor growing microorgansims

Question 9

Aphids

Answer 9

Insects that penetrate the plant phloem and feed on the dissolved food. They act as plant pathogens and are also vectors that carry pathogenic viruses, bacteria, and fungi into a healthy plant tissue

Question 10

Binary fission

Answer 10

Reproduction by simple cell division, for example in bacteria

Question 11

Chlorosis

Answer 11

Yellowing seen on the leaves of plants when they cannot make chlorophyll due to lack of magnesium ions

Question 12

Culture medium

Answer 12

Liquid or gel used to support the growth of microorganisms or other cultures, often containing specific nutrients

Question 13

Inoculate

Answer 13

Introducing microorganisms to a culture medium, or introducinf modifies microorganisms into an individual to protect them against disease

Question 14

Mutation

Answer 14

Change in the genetic material of an organism