4. The illustration below represents an experiment with elodea (aquatic plant) and snails (Aquatic animal).
CU
А в с
Test tube A contains water, test tube B contains water and a snail, test tube C contains
water and elodea, and test tube D contains water, elodea and a snail.
What would be the best reason for having the lamp on during the experiment?
A The lamp would allow the snail to see the B. The lamp would keep the test tubes at 21
elodea.
C in order to maintain a stable climate.
c. The lamp will cause the elodea to grow D. The lamp provides energy for the elodea
rapidly.
to perform photosynthesis.

1. environmental factors, such as ph and temperature, can affect the function of an enzyme. a. true b. false 2. which of the following is an organic molecules (ex. vitamins) that an enzyme? a. coenzyme b. product c. active site d. substrate 3. how do enzymes effect the speed of a chemical reaction? a. they speed it up b. they slow it down c. they have no effect on the speed of a reaction 4. during a chemical reaction, an enzyme is used up so that it can only be used one time. a. true b. false 5. which of the following results from a chemical reaction that is catalyzed by an enzymes? a. active site b. product c. substrate d. coenzyme

Which of the following is not a potential result of deforestation?

Which of these transport mechanisms moves glucose from the blood into a cell? active transport diffusion facilitated diffusion osmosis