Biology, 09.11.2019 09:31 napoleonbrown
If there is is large amount of lactose present, how does bacteria respond?
a. the gene for beta-galactosidase turns on.
b. the gene for beta-galactosidase turns off.
c. beta-galactosidase production increases.
d. lactose is produced.
Answers: 2
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The large ground finch obtains food by cracking seeds. what is its short, strong beak an example? a) tendency toward perfection b) adaptation of a species over time c) selective use and disuse of an organ over time d) scarcity of recourses
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Biology, 21.06.2019 21:00
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
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Biology, 22.06.2019 11:00
What are antigens and antibodies? how are they involved in the body’s response to incompatible blood?
Answers: 1
If there is is large amount of lactose present, how does bacteria respond?
a. the gene...
a. the gene...
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