AP Biology Unit 2

Osmosis is the ______

• when the smell of the neighbors trash moves through the neighborhood
• smell of cookies moving through the kitchen
• movement of water across a semi-permeable membrane
• movement of gases across a room

The picture is an example of...

• active tranport
• passive transport
• diffusion
• osmosis

This picture represents what type of cell transport?

• endocytosis
• exocytosis
• osmosis
• passive transport

Which type of Passive Transport is being represented in this picture?

• Passive Diffusion
• Simple Diffusion
• Active Diffusion
• Facilitated Diffusion

What forms the channels and pumps in the phospholipid bilayer?

• carbohydrates
• proteins
• hydrophilic heads 
• lipids

Which of the following is major cause of the size limits for certain types of cells?

• evolutionary progression in cell size; more primitive cells have smaller sizes.
• the need for sufficient surface area to support the cell's metabolic needs.
• limitation on the strength and integrity of the plasma membrane as cell size increases
• the difference in plasma membranes between prokaryotes and eukaryotes

Ribosomes produce which macromolecule?

• glycogen

• cellulose

• proteins

• lipids

• nucleic acids

All of the following are part of a prokaryotic cell except

• a plasma membrane

• DNA

• nucleus

• ribosomes

• Cytoplasm

Which organelles modifies proteins and packages them into vesicles to be shipped out of the cell?

• free ribosomes

• lysosome

• smooth ER

• golgi apparatus

• nucleus

Which organelle uses enzymes to digest substances?

• lysosome

• peroxisome

• smooth ER

• central vacuole

• plasma membrane