The chemical found in tears and saliva that hydrolyzes the peptidoglycan in certain bacterial cell walls is
A. lysozyme.
B. histamine.
C. lactic acid.
D. hydrochloric acid.
E. bile.
Answer: A
Biology & Microbiology
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Which one of the following organisms has coenocytic organization?
A. humans B. amphibians C. plants D. green algae (Codium and Caulerpa)
Biology & Microbiology
Cells within the morula ____
a. are identical b. are not differentiated c. number over 1000 d. each contain a different portion of the egg’s cytoplasm e. are each the same size of the original egg
Biology & Microbiology
The fact that the atomic weight of carbon is 12.0112 probably indicates that carbon atoms vary in the number of _______ they contain.
A. electrons B. protons C. neutrons D. nuclei
Biology & Microbiology
The linear arrangement of amino acids in a polypeptide chain is referred to as the ________ structure of the protein
Fill in the blank(s) with correct word
Biology & Microbiology