Chapter 4 BIOL 227 practice

Which is NOT a general function of a cell?

• Maintain integrity and shape

• increase surface area

• Dispose of wastes

• Obtain nutrients and form chemical building blocks

Which is a non-membrane bound organelle?

• Golgi

• Mitochondria

• Smooth ER

• Ribosomes

Which is not a type of lipid contained in the plasma membrane?

• Triglycerides

• phospholipids

• cholesterol

• glycolipids

Glycolipids help form the “coating of sugar” on cell’s

surface called

Embedded within and extend across lipid

bilayer

• Peripheral Proteins

• Transport proteins

• Integral proteins

• Cell surface receptors

Which one of these in an active transport process?

• Facilitated diffusion

• Carrier-mediated diffusion

• osmosis

• Sodium-potassium pump

Which 2 cellular processes are taking place in the image below?

• Homeostasis and the transport of molecules

• Homeostasis and energy conversion

• Energy conversion and transport of molecules

• Protein Synthesis and Homeostasis

What is the definition of Osmosis?

• the movement of WATER molecules from high to low concentration.

• the state where molecules are equally concentrated (balanced) on both sides of the cell membrane.
  
• the process that brings LARGE particles INTO the cell through the cell membrane
  
• he movement of molecules across the cell membrane that REQUIRES ENERGY output from the cell
  

Carrier transporting only one substance termed a

Identify a peripheral protein

• structure a

• strucure b

• structure g

• structure h