cell theory

What does a eukaryotic cell have that a prokaryotic cell does not?

• DNA

• organelles

• cell wall

• cell membrane

What tool did scientists use to gather observations to form the cell theory?

• thermometer

• microscope

• graduated cylinder

• triple-beam balance

Tags

NGSS.MS-LS1-1

What characteristics are shared by most cells?

• Most cells have membrane-bound organelles and a nucleus.

• Most cells contain cytoplasm, are enclosed by a membrane, and have a nucleus.

• Most cells are microscopic, enclosed by a membrane, and contain cytoplasm.

• Most cells can be seen by the unaided eye and are enclosed by a membrane .

In what way are cells similar to atoms?

• both are basic units or building blocks

• both are alive

• both have electron shells

• both can be viewed under a light microscope

Would a poison that kills human cells by blocking pores in the nuclear membrane also kill bacteria?

• Yes, both human cells and bacteria have a nucleus.

• Yes, bacteria have a membrane on which the poison can act.

• No, bacteria do not have pores in their nuclear membranes.

• No, bacteria do not have a nucleus on which the poison can act.

Which is not a function of the cytoskeleton?

• supports and shapes the cell

• provides strength

• transports wastes outside of the cell

• aids in cell movement

What characteristics do mitochondria and chloroplasts share?

• both have DNA and external and internal membranes

• both are in animal cells

• both contain enzymes and can break down wastes

• both line the endoplasmic reticulum and aid in making proteins

Tags

NGSS.HS-LS2-5

What structure is only found in plant cells?

• nucleus

• vesicle

• vacuole

• cell wall

What is the function of the nucleus?

• It makes proteins.

• It provides the cell with energy.

• It stores information.

• It transports materials within the cell.

Tags

NGSS.MS-LS1-2

Which organelle is a membrane-bound sac that divides material from the rest of the cell and transports material around the cell?

• vacuole

• vesicle

• ribosome

• endoplasmic reticulum

Tags

NGSS.MS-LS1-2