Chapter 3 Review

Which of the following is a major principle upon which cell theory is based?

• all cells form by free-cell formation

• all organisms are made of cells

• all cells have DNA

• all cells are eukaryotic

Which organelle is the storehouse for most of the cell's genetic information?

• mitochondrion

• centriole

• chloroplast

• nucleus

Which phrase best describes rough ER?

• studded with ribosomes

• protected by vesicles

• connected to the Golgi appartatus

• stored in the central vacuole

Which organelles supply energy to the cell?

• ribosomes

• mitochondria

• centrosomes

• vacuoles

Which organelles contain enzymes that break down old cell parts?

• centrosomes

• vacuoles

• lysosomes

• chloroplasts

Which organelles are unique to plant cells?

• ribosomes

• chloroplasts

• vacuoles

• centrosomes

Which process occurs inside the chloroplasts?

• detoxification

• ribosome assembly

• photosynthesis

• protein synthesis

A protein that detects a signal molecule and performs an action in response is called a...

• receptor

• ligand

• vesicle

• proton

A solution that is hypotonic to a cell has...

• more solutes than the cell

• fewer solutes than the cell

• the same concentration of solutes as the cell

• too many solutes

Transport proteins play a role in both...

• passive and active transport

• exocytosis and endocytosis

• diffusion and vesicle transport

• phagocytosis and passive transport