Year 9 - Book 1

Question 1

Principles of organisation order

Answer 1

Biological molecule, organelle, cell, tissue, organ, organ system, organisms

Question 2

Cell membrane

Answer 2

Controls what goes in + out. Partially permable as it lets somethings in and not others

Question 3

Mitochondria

Answer 3

Aerobic respiration, releases energy made by food

Question 4

Cytoplasm

Answer 4

Chemical reactions take place here.

Question 5

Nucleus

Answer 5

Contains genetic info, controls activities of the cell

Question 6

Ribosomes

Answer 6

Tiny structures found in cell. Protein synthesis

Question 7

Plant cell wall

Answer 7

Made of cellulose and gives structure ( permeable lets everything in )

Question 8

Chloroplasts

Answer 8

Contains chlorophyll which absorbs sunlight to make food ( photosynthesis )

Question 9

Vacuole

Answer 9

Contains cell sap. Keep rigid and strong structure of cell

Question 10

Centi

Answer 10

1 x 10 pwr -2 ( CM )

Question 11

Milli

Answer 11

1 x 10 pwr-3 ( MM )

Question 12

Micro

Answer 12

1 x 10 PWR -6 (UM)

Question 13

Nano

Answer 13

1 x 10 pwr -9 ( NM )