Modern Biology: Cell Theory

Who was the first person to identify and see cells?

• Rudolf Virchow

• Robert Hooke

• Richard Marrow

• Ronald Keeper

The thin, flexible barrier around a cell is called the __________.

• cell wall

• cell membrane

• cytoplasm

• cytoskeleton

Tags

NGSS.MS-LS1-2

Prokaryotes lack ________.

• genetic material

• cell membrane

• cytoplasm

• nucleus

Which of the following contains a nucleus?

• organelles

• eukaryotes

• bacteria

• prokaryotes

The main function of the cell wall is to __________.

• help the cell move

• support and protect the cell

• store DNA

• direct the activities of the cell

Tags

NGSS.MS-LS1-2

Which of the following is a function of the nucleus?

• control most of the cell's processes

• contains the information to make proteins

• stores DNA

• all of the above

Tags

NGSS.MS-LS1-2

Which of the following is a function of the cytoskeleton?

• helps a cell keep its shape

• helps make proteins

• surrounds the cell

• contains DNA

Tags

NGSS.MS-LS1-2

Which of the following is an organelle found in the cytoplasm?

• nucleus

• cell wall

• chromatin

• ribosome

Which organelle would you expect to find ONLY in plant cells?

• chloroplast

• reticulum

• ribosome

• mitochondrion

Tags

NGSS.MS-LS1-6

The diffusion of water across a selectively permeable membrane is called _________

• facilitated diffusion

• osmotic pressure

• osmosis

• active transport