Which molecules initially capture the energy of light and turn it into high energy electrons


Answer: Chlorophyll

Biology & Microbiology

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Which of the following is least important for the binding of a protein to single-stranded DNA?

A. hydrophobic interactions between guanine and tyrosine B. hydrophobic interactions between adenine and phenylalanine C. attraction between phosphate groups and lysine D. attraction between phosphate groups and arginine E. hydrogen bonding between deoxyribose and tyrosine

Biology & Microbiology

Most phyla of aquatic invertebrates have improved the rate of gas exchange by creating a water current over their respiratory surfaces, thereby _____.  

A.  changing the diffusion constant B.  increasing the surface area for diffusion C.  decreasing the distance for diffusion D.  increasing the concentration difference

Biology & Microbiology

In the cross Cc ´ Cc, gametes have a ____ chance of receiving either allele

a. 25-75 b. 50-50 c. 75-25 d. 60-40 e. 90-10

Biology & Microbiology

Pasteurization is a method used for

a. cloning b. prevent global warning c. vaccination purpose d. kill microorganisms in food

Biology & Microbiology