Which would be an example of a catalyst in action?

A) a phosphate group attached to a protein changing its shape
B) glucose and galactose binding to form lactose
C) a protein converting glucose and fructose into sucrose without being changed itself
D) a glycoprotein binding to a cell


Answer: C

Biology & Microbiology

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Viruses can redirect host metabolic functions

Indicate whether the statement is true or false.

Biology & Microbiology

What are likely outcomes for a female who is not choosy enough, and has too broad of an acceptance of reproductive signals? (Check all that apply.)  

_____  Her sons may have low success attracting mates. _____  Her fitness will be improved because she never misses a chance to mate. _____  She may mate with males who are sick with parasites or disease. _____  She may mate with males with less adaptive genes. _____  Her fitness goes up due to increased efficiency by not wasting time in lengthy evaluations. _____  She might inadvertently mate with a different species. Clarify question: What is the key concept addressed by the question? The results when a female isn't maximizing fitness with mate choice. What type of thinking is required? This is an analyze question, you need to break down all of the given outcomes and pick the best ones. You need to select which of these outcomes would result from a female not being careful when picking a mate. The goal of mate choice is to pick the highest quality mate, thus maximizing fitness. Gather Content: What do you already know about mate choice and fitness? What other information is related to the question?  This question comes from the section of the textbook that discusses the role of courtship. Picking the best male gives the female the best chances of producing high quality offspring with higher fitness than other potential offspring. Choose Answer:   Given what you now know, what information is most likely to produce the correct answer? Anything that reduces her fitness or the fitness of her offspring is a potential downfall of not being picky when it comes to mate choice. Reflection 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? The key to this analyze question is to understand the link between mate choice and fitness.Her lack of male selection may effect her reproductive fitness.

Biology & Microbiology

Although it was one time hoped that nuclear energy would meet most human energy needs, this has not occurred due to expense and safeguards necessary to prevent meltdowns

Indicate whether the statement is true or false

Biology & Microbiology

Which of the following statements about DNA structure is false?

A: It is antiparallel. B: It has a uniform diameter. C: It is a double-stranded helix. D: The 3´end is phosphorylated. E: It is a right-handed helix.

Biology & Microbiology