The Archaea generally lack which of the following that are normally found in Gram-negative bacteria?

A. Lipopolysaccharide
B. A complex peptidoglycan network
C. Outer membrane
D. All of the choices are correct.


Answer: D

Biology & Microbiology

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Choose the item in column 2 that best matches each item in column 1.

A) diffusion and passive and active transport B) both passive and active transport C) diffusion D) active transport E) none of the listed processes F) both diffusion and passive transport G) indirect active transport H) passive transport 1) requires a specific integral membrane protein 2) dependent on solubility properties of the solute 3) requires cellular expenditure of energy 4) Keq = 1 5) Na+/glucose symport 6) Na+/K+ pump 7) exclusively involves the transfer of small, nonpolar molecules 8) applies only to ions 9) ?G° = 0 10) direction of transport is dependent upon the concentration gradient at any given point in time 11) requires ligand binding and therefore Michaelis constants can be calculated

Biology & Microbiology

The anticipated pleasure associated with a particular action, such as taking a drug

What will be an ideal response?

Biology & Microbiology

Most examples of polyploidy speciation involve

A. plants. B. mammals. C. arthropods. D. prokaryotes. E. fungi.

Biology & Microbiology

The Gram-staining procedure is an example of ________.

A. simple staining B. fluorescent staining C. differential staining D. negative staining

Biology & Microbiology