Organisation- B2- Paper 1

Question 1

Define a cell and give examples.

Answer 1

The basic building blocks of all living organisms.
E.g. sperm cells, root hair cells, nerve cells, muscle cells.

Question 2

Define tissues and give examples.

Answer 2

A group of cells with similar structures and function working together
E.g. glandular tissue contains secretory cells that can produce and release substances such as enzymes and hormones, Epithelial tissue covers the outside of your body as well as your internal organs.

Question 3

Define an organ and give examples.

Answer 3

A collection of tissues. Each organ contains several tissues, all working together to perform a specific function.
E.g. the stomach, is involved in the digestion of food. It contains muscular tissue, glandular tissue and epithelial tissue. The pancreas secretes hormones to control blood sugar as well as some enzymes that digest food.

Question 4

Define organ systems and give examples.

Answer 4

Groups of organs that all work together to perform specific functions.
E.g. the digestive system, respiratory system and nervous system.

Question 5

Define organisms and give examples.

Answer 5

A group of organ systems.
E.g. humans, dogs, cats