What defines radial symmetry?
A) Any plane of symmetry passing through the center of the organism splits it into equal halves.
B) Only five planes of symmetry passing through the center of the organism splits it into equal halves.
C) Only one plane of symmetry splits the organism into equal halves.
D) No planes of symmetry exist; the organism cannot be split into equal halves.
A
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The cells wall of bacteria Z contains high concentrations of phospholipids along with proteins and relatively low amounts of lipopolysaccharide. When bacteria Z is gram stained, it will most like be colored?
A. Purple B. Pink C. Blue D. Clear, it does not retain any stain Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? Gather Content · What do you already know about gram staining? How does it relate to the question? Choose Answer · Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer? Reflect on Process · Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
Streptomycin is an antibiotic that interferes with the function of the 30S subunit of the prokaryotic ribosome. What is the consequence of treating a bacteria with streptomycin?
A. impaired oxygen synthesis B. impaired ATP synthesis C. impaired protein synthesis D. impaired DNA synthesis
A researcher is studying eukaryotic cells that shows an abnormal pattern of surface glycosylation. The researcher determines that these cells have normal levels of glycolipids and integral membrane proteins with O-linked glycosylation. The researcher discovers that there are no N-linked glycosylated proteins on the cell surface and unusually high levels of glycosylated in the ER membrane. What is a reasonable hypothesis to explain this observation?
A. the cell is defective in synthesizing of carbohydrates B. the cell has a defect in its ER localization signal C. the cell is defective in assembling carbohydrate trees D. the cell has a defect in its protein sorting pathway E. the cell has a defective oligosaccharide transferase
The liquid portion of blood that contains metabolites, wastes, hormones, ions, and a variety of proteins is called the ________.
A. edema B. platelet C. eosinophil D. plasma E. lymph