holt science

What is a cell?

• C.E.L.L for the scientific method.

• The basic unit of of living things.

• What makes up everything.

What are the levels of cellular organization?

• Cell group -> tissue -> organs -> organ system -> organism

• Cells -> organs -> organism

• Organ system -> organism

• Cell group -> organs -> tissue -> organism

What are the two types of cells?

• White & red.

• Plants & animals.

• Enzymes & chromosomes.

• Prokaryotic & Eukaryotic.

Which are the major 3 differences in between plant and animal cells?

• Plant have chlorphyll.

• Vacuoles are bigger in plants.

• Animals have cell walls.

• Animal cells have cytoplasm.

• Plants have cell walls.

Is the cell membrane is the outer cover of a cell?

• No.

• Yes.

Do ribosomes contain energy that power the lysosomes and vacuoles?

• Yes.

• No.

What is the nucleus?

• It is not a thing.

• The control center of the cell.

• A nuclear chemical that is used in nukes and other bombs.

• A gel for the cytoplasm.

What did Rudolf Virchow come up with?

• Named enzymes and chromosomes.

• Nothing.

• Cell theory.

• Made a mircoscope.

What do latent viruses do?

• Take control of the host cells functions and produce new viruses and evenally destroy the host cell.

• Doesn't immediately make new viruses and only becomes active in certain conditions.

What is a virus?

• A bacteria that causes sickness.

• A strand of hereditary material surrounded by a protein coat, that multiply by taking over host cell.