What should the arrow in the following equation be labeled? Sugar + oxygen --> carbon dioxide + water + ATP.

a. photosynthesis
b. cellular respiration
c. Krebs cycle
d. Calvin cycle


Ans: b. cellular respiration

Biology & Microbiology

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The isoelectric point (pI) is:

A. the pH at which a protein has a net positive charge. B. the pH at which a protein has a net negative charge. C. the pH at which a protein has a net charge of zero. D. the distance a protein having a positive charge will travel in gel electrophoresis. E. the distance a protein having a negative charge will travel in gel electrophoresis.

Biology & Microbiology

What conclusion is consistent with these results?

A researcher is studying coat color in mice. Wild-type fur in mice is brown. Three pure-breeding strains of mice with white fur have been isolated. The strains are called milky, blanc, and weiss. White fur is a recessive trait in each strain. These mice are crossed to each other in pairs and the progeny phenotypes are recorded. milky × blanc = all white progeny milky × weiss = all brown progeny blanc × weiss = all brown progeny A) All three strains have mutations in the same gene. B) All three strains have mutations in different genes. C) The milky and blanc strains have mutations in the same gene; weiss has a mutation in a different gene. D) The milky and weiss strains have mutations in the same gene; blanc has a mutation in a different gene. E) The weiss and blanc strains have mutations in the same gene; milky has a mutation in a different gene.

Biology & Microbiology

The oldest fungal fossils resemble ____, a group of modern fungi

a. lichens b. yeasts c. chytrids d. amoebas e. cyanobacteria

Biology & Microbiology

Temperature at which a solid state changes to a liquid state

What will be an ideal response?

Biology & Microbiology