Exam 2 Review

Which one of these structures is not one that is seen in all types of cells?

• Cytoplasm

• DNA Region

• Cell Wall

• Plasma Membrane

Which organelle are ribosomes attached to?

• Rough ER

• Smooth ER

• Cytoskeleton

• Golgi body

What gives plants their green pigment?

• Central vacuole

• Cell wall

• Cytoplasm

• Chlorophyll

What is the main component of the cell membrane?

• Glycolipids

• Proteins

• Sterols

• Phospholipids

Which structure establishes living bridges between cells?

• Primary wall

• Plasmodesmata

• Middle lamella

• Plasma membrane

What is the largest structural element of the cytoskeleton?

• Microtubules

• Microfilaments

• Intermediate filaments

• None of these

The cell theory includes of the following except:

• All living organisms are composed of cells

• Cells are organisms’ basic units of structure and function

• Cells come only from existing cells

• All cells are about the same size and contain organelles

Which of the following is not a function of the nucleus?

• Waste disposal

• Controlling the cells activities

• Make more clones of the cell

• Housing the DNA molecules in a eukaryotic cell

The lipid bilayer consists of hydrophilic tails that are sandwiched between hydrophobic heads

• True

• False

In diffusion molecules use [Blank] energy to move around randomly

• Chemical

• Kinetic

• Potential

• Mechanical