Levels Of Organisation

Question 1

What is a Eukaryotic cell?

Answer 1

Complex, include animal & plant cells

Question 2

What are Prokaryotic cells?

Answer 2

Simpler & smaller, eg. bacteria

Question 3

State the definition of an Organelle

Answer 3

Tiny structures in cells, only seen with powerful microscope

Question 4

Explain the role of the Nucleus

Answer 4

Contains genetic material that controls cells activities + surrounded by it’s own membrane

Question 5

Explain the role of the Cell Membrane

Answer 5

Forms outer surface of cell & controls what goes in + out

Question 6

What is the Cytoplasm?

Answer 6

Gel-like substance where chemical reactions take place. Contains enzymes which control these reactions

Question 7

Explain the role of the Mitochondria

Answer 7

Small organelles where reactions for aerobic respiration take place

Question 8

Explain the role of the Ribosomes

Answer 8

Where proteins are made in cell

Question 9

Explain the role of the Chloroplast

Answer 9

photosynthesis which makes food for plant happens here. Chloroplasts contain green substance called chlorophyll which is used in photosynthesis

Question 10

What is a Cell Wall?

Answer 10

Rigid structure made of cellulose, which surrounds the cell membrane. It supports & strengthens the cell

Question 11

Define what a Vacuole is.

Answer 11

Large organelle, contains cell sap. Helps to support the cell

Question 12

State what a Tissue is.

Answer 12

A group of similar cells that work together to perform a function, can contains more than 1 cell type. Eg: xylem + phloem

Question 13

State what an Organ is.

Answer 13

Group of tissues working together to perform a function, can contain more than 1 cell type. Eg: lungs + leaves of a plant

Question 14

State what an Organ System is.

Answer 14

Organs work together to form organ systems. Each system does a different job. Eg: digestive system made up of stomach, intestines, pancreas & liver