Biology: Year 10 term 4 test

Question 1

Air transmission

Answer 1

the spread of an infectious agent caused by the dissemination of droplet

Question 2

Communicable disease

Answer 2

A disease that can be transferred from one organism to another

Question 3

Non-communicable disease

Answer 3

A disease that cannot be transferred from one organism to another

Question 4

Pathogen

Answer 4

A microorganism that causes disease

Question 5

types of pathogen

Answer 5

Virus, Fungi, Protist, Bacteria

Question 6

Examples of communicable diseases

Answer 6

Aids, Malaria, Athletes foot, salmonella

Question 7

Examples of non-communicable disease

Answer 7

Diabetes, Cancer, Heart disease, Lung cancer

Question 8

How many chromosomes do humans have?

Answer 8

23 pairs or 46

Question 9

Where does photosynthesis occur

Answer 9

chloroplast

Question 10

Stage 1 of Mitosis

Answer 10

Cell growth: New parts of the cell are made e.g. mitochondria, ribosomes. DNA Is replicated

Question 11

Stage 2 of Mitosis

Answer 11

One set of chromosomes move to either end of the cell, and nucleus divides

Question 12

Stage 3 of Mitosis

Answer 12

Cytokinesis: Cytoplasm and cell membrane divide to form genetically identical cells

Question 13

If a cell has 30 chromosomes, how many chromosomes are in the daughter cells?

Answer 13

At the end of Mitosis, the cell would have half the original number of chromosomes, that is, 15 chromosomes.

Question 14

Benign Tumour

Answer 14

Growths of abnormal cells, Contained in one area (usually within a membrane) therefore do not spread around the body.