A signal molecule is also known as a(n) _____.

-key
-initiator
-protein
-receptor
-ligand


ligand

Biology & Microbiology

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You are working on a research project that involves a mutational analysis of the light harvesting complex Lhca1, which is an important light harvesting complex found in plants. Your labmate asks where this complex is located. You say it is in the.  

A.  outer chloroplast membrane B.  inner chloroplast membrane C.  thylakoid membrane D.  stroma E.  matrix 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 how light harvesting occurs in photo systems during photosynthesis? What other information is related to the question?   Choose Answer Do you have all the information needed to provide an explanation?   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

Species richness of birds in the continental United States is highest

A. where temperatures are highest. B. in northern California. C. in Florida. D. in Texas. E. in the center.

Biology & Microbiology

Suppose a microbiologist wanted to identify the microbe responsible for a specific metabolic activity. To simultaneously assess metabolic activity and phylogenetic identity, the best technique would be ________.

A. optical tweezers with microelectodes B. microautoradiography with fluorescent in situ hybridization (MAR-FISH) C. isotope fractionation D. metatranscriptomics

Biology & Microbiology

Plant species in California's Santa Rosa Mountains are seen to be

A) moving southward. B) growing larger in size. C) moving to higher elevation. D) unaffected by climate change.

Biology & Microbiology