Definitions

Question 1

Tissue

Answer 1

A collection of differentiated cells that have a specialised function or functions in an organism.

Question 2

Exocytosis

Answer 2

The bulk transport of materials out of cells. Vesicles containing the material fuse with the cell-surface membrane and the contents are released to the outside of the cell.

Question 3

Endocytosis

Answer 3

The bulk transport of materials into cells via invagination of the cell-surface membrane forming a vesicle.

Question 4

Translocation

Answer 4

Movement of assimilates from source to sink

Question 5

Natural active immunity

Answer 5

Normal immune response to the presence of pathogens

Question 6

Natural passive immunity

Answer 6

Babies receiving immunity from its mother as a TEMPORARY defence - antibodies via placenta and antibodies in the mothers milk

Question 7

Artificial passive immunity

Answer 7

Taking antibodies produced by another organism and injecting them into the bloodstream - short term immunity

Question 8

Artificial active immunity

Answer 8

Vaccination or immunisation- injecting ‘safe’ antigens into the bloodstream or muscle tissue

Question 9

Species richness

Answer 9

Number of species in a habitat

Question 10

Species evenness

Answer 10

Abundance of each species