Everything we've done so far

Which organelle contains DNA?

• Nucleus

• Plasma Membrane

• Golgi Apparatus

• Lysosomes

What is the role of the cell membrane?

• To control the cell's activities

• To produce proteins

• To control the movement of substances in and out of the cell

• To produce enzymes

What is the name of this organelle?

• Smooth endoplasmic reticulum

• Rough endoplasmic reticulum

• Nucleus

• Golgi apparatus

Which organelle produces proteins?

• Ribosomes

• Lysosomes

• Vacuole

• Cytoplasm

What is the name of the substances that make up cell membranes?

• Nucleic acids

• Phospholipids

• Glycerol

• Polypeptides

TRUE OR FALSE: Phospholipids have a hydrophobic tail that repels water

• True

• False

What is the role of cholesterol in the cell membrane?

• To help substances enter the cell

• To help substances leave the cell

• To provide stability

• To help with cell communication

What is the term given to describe the arrangement of molecules in the cell membrane?

• Fluid jigsaw model

• Stable jigsaw model

• Fluid mosaic model

What is one role of cell surface markers?

• To allow substances to move out of the cell

• To communicate with other cells

• To organise organelles

TRUE OR FALSE: Diffusion is the movement of substances from an area of high concentration to an area of low concentration

• True

• False