The first committed step of Krebs cycle is:

a. acetylCoA synthesis
b. oxaloacetate regeneration
c. citrate synthesis
d. isocitrate dehydrogenation
e. pyruvate decarboxylation


Ans: c. citrate synthesis

Biology & Microbiology

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A cuboidal shaped cell with six sides is 1mm X 1mm X 1mm. What is the volume and the surface area of the cell?  

A.  1mm3 : 6mm2 B.  3mm3 : 3mm2 C.  1mm3 : 3mm2 D.  3mm3 : 1mm2 Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? · What key words does the question contain and what do they mean? Gather Content · What do you know about area and volume of a cube? How does it relate to the question? Consider Possibilities · What other information is related to the question? Which information is most useful? 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?

Biology & Microbiology

The production of an RNA molecule from the information in a DNA template molecule is referred to as ____

Some help with this one, please?

Biology & Microbiology

Acid-fast smears should be examined carefully by scanning at least ________ oil immersion fields

a. 100 b. 200 c. 300 d. 400

Biology & Microbiology

________ may have pili

A) Eukaryotes B) Archaea C) Bacteria D) Prokaryotes E) Both eukaryotes and bacteria

Biology & Microbiology