AQA Biology

What is the process by which particles flow in and out of a cell?

• Diffusion

• Osmosis

What is Osmosis?

• Spreading out of particles from an area of higher concentration to an area of lower concentration

• Movement of water molecules across a partially permeable membrane from a region of higher water concentration to a region of lower water concentration

Have a break and learn this stupidly dull required practical.

• ANSWER

• DO NOT PRESS

What is Active Transport?

• Spreading out of particles from an area of higher concentration to an area of lower concentration

• Movement of water molecules across a partially permeable membrane from a region of higher water concentration to a region of lower water concentration

• Movement of particles from an area of lower concentration to an area of higher concentration

Where does the energy for active transport come from?

• Nutrients

• Respiration

Select all the ways Alveoli are specialised for gas exchange

• Huge Surface Area

• Moist Lining

• Very thin Walls

• Good Blood Supply

• Hexagonal Shape

How are the Villi (located inside the small intestines) specialised for exchanging substances?

• High Surface Area

• Good Blood Supply

• Moist Lining

• Thin Walls

What is the job of Muscular Tissue?

• Contract to move whatever its attached to

• Make and secrete enzymes and hormones

• Cover some parts of the body

What is the job of Glandular Tissue?

• Contract to move whatever its attached to

• Make and secrete enzymes and hormones

• Cover some parts of the body

Tags

NGSS.HS-LS1-6

What is the job of Epithelial Tissue?

• Contract to move whatever its attached to

• Make and secrete enzymes and hormones

• Cover some parts of the body