Midterm Review Support

Midterm Review Support

Cell Membrane Structure

Dynamic Equilibrium

Animal Cell

Ribosome

Makes proteins such as enzymes

Gets instructions from nucleus

Cell Membrane

lets sugar, amino acids, water, oxygen, CO2, IN & OUT

Cytoplasm

transport substances around cell like the circulatory system

Mitochondria

Makes ATP (energy) for life processes

Carbohydrates

made of simple sugars

Starch needs to be digested before it can enter the blood & cells

Proteins

Made of amino acids

Enzymes (catalyst)

Proteins that speed up reactions

Specific shape determines function

Factors affecting enzymes

when they move away from their optimal pH & temp their activities slow down.

Multiple Choice

Which cellular structure would be the most likely location for the synthesis of these enzymes?

• 1

• 2

• 3

• 4

Multiple Choice

Which structure is responsible for the synthesis of ATP?

• A

• B

• C

• D

Multiple Choice

The coded information that the cell uses to synthesize many different proteins is stored in structure

• A

• B

• C

• D

Multiple Choice

The arrow points to a component of the membrane that is best described as a

• sugar floating in lipids

• protein floating in lipids

• lipid floating in proteins

• lipid floating in sugars

Multiple Choice

Which graph of blood sugar level over a 12-hour period best illustrates the concept of dynamic equilibrium in the body?

Multiple Choice

Substances X and Y are examples of which kind of molecule?

• simple sugar

• amino acid

• fatty acid

• glycerol

Multiple Choice

There are over 2000 kinds of edible insects in the world, and they are becoming an increasingly popular source of protein. One cup of cricket flour contains over 28 grams of protein. The building blocks of the protein in cricket flour are

• simple sugars

• fatty acids

• amino acids

• glycerol

Multiple Choice

Plants such as the Venus flytrap produce chemical compounds that break down insects into substances that are usable by the plant. The chemical compounds that break down the insects are most likely

• fats

• minerals

• biological catalysts

• complex carbs

Multiple Choice

Which statement is a valid conclusion based on the information in the graph below?

• The maximum rate of human digestion occurs at about 45° C.

• The maximum rate of human respiration occurs at about 57° C.

• Temperature can influence the action of an enzyme.

• Growth can be controlled by enzyme action.

Multiple Choice

A fully functioning enzyme molecule is arranged in a complex three-dimensional shape. This shape determines the

• specific type of molecule it interacts with during a reaction

• rate at which the enzyme breaks down during a reaction it regulates

• pH of all body systems

• temperature of the products of the reaction it regulates