Cell Biology Quiz

The scientist who 1st described and named cells was _____.

• Schleiden

• Schwann

• Hooke

• Both Schleiden & Schwann

Cells without internal, membrane-bound organelles are called _____.

• eukaryotes

• animal cells

• plant cells

• prokaryotes

Which of the following statements is NOT a part of the cell theory?

• Organisms are composed of 1 or more cells

• All cells come from pre-existing cells

• Cells are the basic unit of organization

• All cells contain ribosomes

The main component of the plasma membrane is a _____.

• phospholipid

• protein

• cholesterol

• water molecule

Tags

NGSS.MS-LS1-2

All cells have the following EXCEPT _____.

• ribosomes

• a nucleus

• a plasma membrane

• DNA

Tags

NGSS.MS-LS1-1

NGSS.MS-LS1-2

This molecule is necessary in the plasma membrane because it keeps it flexible by keeping the fatty acid chains apart.

• water

• phospholipids

• cholesterol

• glycerol

Eukaryotes are found in all of the kingdoms EXCEPT ____.

• Plantae

• Archaebacteria & Eubacteria

• Animalia

• Protista

The plasma membrane maintains homeostasis by _____.

• being nonpermeable

• being permeable

• being selectively permeable

• being rigid & inflexible

Tags

NGSS.HS-LS1-3

The head of the phospholipid molecule must be ____, so it can interact with water in the environment.

• polar

• non-polar

• hydrophilic

• both polar & hydrophilic

• hydrophobic

The proteins in the plasma membrane _______.

• provide structure for the cell

• provide ways for cells to identify each other

• transport molecules

• all of these functions

Tags

NGSS.MS-LS1-2