All gram-negative bacteria have lipopolysaccharides in their outer membranes
Indicate whether the statement is true or false.
Answer: TRUE
Biology & Microbiology
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Silica is a characteristic component of diatom and oomycete cell walls
Indicate whether the statement is true or false.
Biology & Microbiology
Chemosynthetic bacteria are unique:
a. in not requiring CO2. b. because they use energy derived from chemicals. c. because they can produce food with low light. d. and are very common in the twilight depths. e. because many forms are also bioluminescent.
Biology & Microbiology
Which of the following pHs has the highest
concentration of hydrogen ions?
a. 1 b. 3 c. 5 d. 7 e. 9
Biology & Microbiology
Energy is defined as ____
a. the capacity to do work b. the movement of atoms and molecules c. movement of electrons d. measurement of food intake e. capacity to store sugar
Biology & Microbiology