Which protist group includes the dinoflagellates, apicomplexans, and ciliates?
A) Diatoms
B) Euglenids
C) Protozoa
D) Stramenopiles
E) Alveolates
E
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Fructose and galactose both have six carbon atoms, twelve hydrogen atoms and six oxygen atoms, just like glucose. A friend of yours says: "Since those sugars have the same number of atoms, they should have the same name." You Answer: "While they do have the same number and type of atoms,
A. they are all polysaccharides and have slightly different functions within organisms and therefore have different names." B. they are named differently because of their quaternary structures, which is very important in carbohydrates, especially glucose." C. they are named differently because when heated above their optimal temperature they become denatured and will not react with their substrates." D. they are named differently because they are involved in different DNA nucleotide formation." E. they are named differently because they are alternate forms of the monosaccharide, glucose."
Signal recognition particles (SRPs) are associated with the Sec translocation system.
Answer the following statement true (T) or false (F)
Which of the following enzymes would you find in a cow's gut, but not in yours?
A. cellulase B. pepsin C. collagenase D. carboxypeptidase E. acetylcholinesterase
Scientists want to determine whether chemical X, a component of fertilizer, is harmful to fish. They treat fish in the
laboratory with increasing amounts of the chemical for one week and then measure their viability. What is the experimental variable for this experiment?
a. chemical X b. fish c. river d. farming e. water