In plants that can open and close, there are small passages through the cuticle that allow for some control of water loss by evaporation, and these passages are the main route for uptake of carbon dioxide. What are the passages called?
a. sporopollenins
b. tracheophytes
c. stomata
d. thalli
Ans: c. stomata
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You are working with a specific enzyme-catalyzed reaction in the lab. You are a very careful experimentalist, and as a result, at the beginning of each of your experiments, you measure the temperature in the lab. On days 1 through 5, the temperature in the lab was 20oC. Today is day 6 of your experiment, and the temperature in the lab is 30oC. How do you predict that this will alter the rate of
your enzyme-catalyzed reaction? A. It will decrease the rate B. It will increase the rate C. It could possibly increase or decrease the rate D. it will not affect the rate
The mercury in fish is normally in the form of elemental mercury (Hg0)
Indicate whether the statement is true or false.
Which of the following would not be found in both plant and animal cells?
a. microtubules b. a nucleus c. a plasma membrane d. plastids
The stage of viral replication in which viral components are put together to form new viruses is:
a. Release b. Assembly c. Attachment d. Penetration e. Synthesis