Chapter 3

Which of the following is a major

principle upon which cell theory is

based?

• All cells form by free-cell formation.

• All cells have DNA.

• All organisms are made of cells.

• All cells are eukaryotic.

Identify the type of cell shown

• prokaryotic

• eukaryotic

• bacterial

• animal

Which organelle is the storehouse for

most of a cell’s genetic information?

• mitochondrion

• chloroplast

• centriole

• nucleus

Which phrase best describes rough ER?

• studded with ribosomes

• protected by vesicles

• connected to the Golgi apparatus

• stored in the central vacuole

Which organelles supply energy to the

cell?

• ribosomes

• centrosomes

• mitochondria

• vacuoles

Which organelles contain enzymes that

break down old cell parts?

• centrosomes

• lysosomes

• vacuoles

• chloroplasts

Which organelles are unique to plant

cells?

• ribosomes

• vacuoles

• chloroplasts

• centrosomes

Which process occurs inside the

chloroplasts?

• detoxification

• ribosome assembly

• photosynthesis

• protein synthesis

Which type of receptor is shown in the

diagram

• cytoplasmic

• membrane

• extracellular

• intracellular

A protein that detects a signal molecule

and performs an action in response is

called a

• receptor

• ligand

• vesicle

• proton