Y8 Science - Cells

The cell theory states that: (More than 1 correct answer)

• All organisms are composed of one or more cells

• New cells are created from existing cells

• Cells create all matter living and non-living

• Cells are the basic units of life and structure

Who created the cell theory?

• Friedrich Miescher and Theodor Schwann

• Theodor Schwann and Matthias Schleiden

• James Watson and Francis Crick

• Francis Crick and Matthias Schleiden

Prokaryotic cells are simple cells that are _____. (Word meaning 'of one cell')

How are eukaryotic cells different from prokaryotic cells?

• Eukaryotic cells do not have membrane-bound organelles

• Eukaryotic cells are predominantly unicellular

• Eukaryotic cells are multicellular

• Eukaryotic cells and prokaryotic cells are the same

The surface area - to - volume ratio (SA:V) relates to why cells are:

• small

• multicellular

• rigid

• alive

Match the organelle with its function!!

• Stores DNA and controls cell functions

• Vacuole

• Transports proteins and lipids

• Nucleus

• Makes energy for the cell

• Ribosome

• Where proteins are made

• Golgi Body

• Stores water and sugar

• Mitochondria

Which organelle is the 'powerhouse of the cell'?

Which organelles are ONLY in plant cells? (Select all correct answers)

• Cell membrane

• Cell wall

• Vacuole

• Chloroplasts

True or False: Light microscopes can magnify up to 2000x greater than the human eye.

• True

• False

True or False: Electron microscopes can observe both living and dead specimens.

• True

• False