Test #2 Review

Test #2 Review

Multiple Choice

This picture represents what type of cell transport?

• endocytosis
• exocytosis
• osmosis
• passive transport

Multiple Choice

Movement of materials from high to low concentration through a protein channel. 

• Passive Transport
• Active Transport

Multiple Choice

• Passive Transport
• Active Transport

Multiple Choice

What type of solution is this cell in?

• Isotonic
• Hypertonic
• Hypotonic
• diffused

Multiple Choice

What type of solution is this cell in?

• Isotonic
• Hypertonic
• Hypotonic
• diffused

Multiple Choice

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

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

Multiple Choice

What is NOT TRUE about the cell membrane

• It controls what enters and leaves the cell
• Semipermeable
• Phospholipid bilayer
• Contains digestive enzymes

Fill in the Blank

The polar head of the phospholipid _____ water. (loves or hates?)

Multiple Choice

How many layers does the phospholipid bilayer have?

• Two

• One

• Three

Fill in the Blank

The cell membrane is described as a _____ mosaic model.

Multiple Choice

Hydrophilic portion of cell membrane?

• A
• C
• D
• E 

Multiple Choice

The function of the plasma membrane is....

• to regulate what enters and leaves the cell.
• fight bacteria and viruses that enter the cell.
• provide rigid support and protection to the cell.
• make sure each cell can move

Multiple Choice

What was the first mission established in Texas?

• Corpus Christi de la ysleta

• san antonio de valero

• Bexas

• Dallas

Multiple Choice

What was the first mission established in Texas?

• Corpus Christi de la ysleta

• san antonio de valero

• Bexas

• Dallas

Multiple Choice

What is the optimal temperature of this enzyme?

• 60

• 40

• 70

• 30

Multiple Choice

Which explanation best fits the graph for pH's effect on an enzyme?

• As the pH gets closer to neutral more H-Bonds are broken
• Larger numbers of H+ & OH- ions distort the active site
• There are more collisions between substrates and active sites near the optimal pH
• Low pHs cause more H-Bonds to happen near the active site

Multiple Choice

At high temperatures enzyme activity declines because of:

• Denaturation
• Decreased Kinetic Motion
• Increased H-Bonding
• Dissociation of Ionic Compounds

Multiple Choice

Enzymes catalyze reactions by ___________ Activation Energy.

• Increasing
• Decreasing

Multiple Choice

What is structure A?

• Substrate
• Active site
• Enzyme
• Products

Multiple Choice

In the diagram, what is letter A? 

• product
• substrate
• enzyme-substrate complex
• active site

Multiple Choice

Enzymes are...

• nucleic acids
• proteins
• lipids
• carbohydrates

Multiple Choice

Which of the following best explains why enzymes are necessary for many cellular reactions?

• Enzymes supply the oxygen necessary for the reactions
•  Enzymes change reactants from solid to liquids during the reactions.
• The reactions take up too much space in the cell if the enzymes are missing.
• The reactions are too slow to meet the needs of the cell if enzymes are missing. 

Multiple Choice

What will most likely happen if an appropriate enzyme is added to a chemical reaction? 

• The reaction rate will increase.
• The equilibrium of the reaction will be maintained. 
• The reaction rate will decrease.
• The reaction will stop. 

Multiple Choice

The graph shows how enzymes affect reactions in cells. Which statement best summarizes the information shown in the graph?

• Enzymes increase the energy of the reactants.

• Enzymes decrease the energy level of the products.

• Enzyme decrease the activation energy of the reaction.

• Enzymes reverse the direction of the reaction.

Multiple Choice

The graph shows how enzymes affect reactions in cells. Which statement best summarizes the information shown in the graph?

• Enzymes increase the energy of the reactants.

• Enzymes decrease the energy level of the products.

• Enzyme decrease the activation energy of the reaction.

• Enzymes reverse the direction of the reaction.

Multiple Select

Which organisms do cellular respiration? Select all that apply.

• plants

• animals

• protists (amoebas, paramecium)

• fungi (mushrooms, yeast, mold, mildew)

• bacteria

Multiple Choice

carbon dioxide and water are

• reactants of cell respiration

• products of cell respiration

Multiple Choice

The CO₂ you breathe out comes out of which process?

• Glycolysis

• lactic acid fermentation

• Kreb's Cycle

Multiple Choice

Carbon dioxide levels will _______ during exercise.

• increase

• decrease

• see no change

Multiple Choice

Photosynthesis _________ the energy that cell respiration ______.

• builds ; breaks

• breaks ; build

• eats ; builds

Multiple Choice

What are the products of cell respiration?

• water, light, and sugar

• water, carbon dioxide, ATP

• oxygen, water, sugar

Multiple Choice

If you wanted to produce more energy, what pathway would you choose?

• aerobic

• anaerobic

Multiple Choice

What are the reactants in cell respiration?

• water, carbon dioxide, light

• oxygen, sugar

• sugar, water, carbon dioxide

Multiple Choice

What are the reactants in cell respiration?

• water, carbon dioxide, light

• oxygen, sugar

• sugar, water, carbon dioxide