Ch 8 - Cell structure and function

Which process requires no energy from the cell?

• exocytosis

• endocytosis

• active transport

• facilitated diffusion

Which process occurs when a vesicle fuses with the cell membrane and releases its contents outside the cell?

• endocytosis

• phagocytosis

• exocytosis

• osmosis

The cell theory states that all organisms are made of cells; cells are the most basic unit of life; and

• all existing cells form by free-cell formation.

• all cells are eukaryotic.

• all existing cells are produced by other living cells.

• all cells have a nucleus.

What is the term for the jellylike substance that is contained inside the cell membrane?

• cytoplasm

• DNA

• organelle

• nucleus

Tags

NGSS.MS-LS1-2

Unlike a eukaryotic cell, a prokaryotic cell does not have

• DNA.

• a cell membrane.

• cytoplasm.

• a nucleus.

Specialized structures that work together inside a cell are called

• organelles.

• prokaryotes.

• eukaryotes.

• nuclei.

Tags

NGSS.MS-LS1-2

What is a phospholipid composed of?

• a polar head and a nonpolar tail

• a nonpolar head and a polar tail

• a polar head and tail

• a nonpolar head and tail

Which phrase best describes the property of selective permeability?

• some molecules pass

• all ions pass

• large molecules pass

• all molecules pass

Which phrase best describes rough ER?

• studded with ribosomes

• protected by vesicles

• connected to the Golgi apparatus

• stored in the central vacuole

A solution that is hypotonic to a cell has

• more solutes (particles of a substance) than the cell.

• fewer solutes than the cell.

• the same concentration of solutes as the cell.

• too many solutes.