As a protein is being synthesized, the correct folding of the protein is aided by the movement of nonpolar amino acids toward the inner areas of the protein. How can this phenomenon be explained? How will this influence other levels of protein structure?
What will be an ideal response?
Answer: The exclusion of hydrophobic groups from the aqueous surface is called the hydrophobic effect. This then influences the other levels in orientation. (Many correct answers are possible.)
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Four of the five processes below have markedly
influenced the evolution of life. Select the exception. a. continental drift b. natural selection c. inheritance of acquired characteristics d. geological catastrophes e. asteroid impacts
Early biologists referred to animals as ''simple'' and ''advanced,'' but now it is more accurate to use the following terms:
A. ''allopatric'' and ''sympatric,'' since the species is most important. B. "generalists'' and ''specialists,'' since this is how biologists classify characters. C. ''simple'' and ''complex,'' since anatomy terms are more exact. D. ''evolved'' and ''un-evolved,'' since everything ties together with evolution. E. ''primitive'' and ''derived,'' since some early forms became very complex and some evolved forms are derived from them but lost characters and are simple.
A gardener in Canada wants to surprise his mother on her birthday and make her favorite hibiscus bush flower in May instead of at the end of June. The bush is growing in the greenhouse
Which of the following might make the hibiscus bush flower early? A) grafting leaves of a hibiscus that was exposed to long night B) grafting leaves of a hibiscus that was exposed to short night C) exposing flower buds of the hibiscus bush to long nights D) exposing flower buds of the hibiscus bush to short nights
The bivalves started to die one by one; only the undamaged shells remained. To keep the remaining bivalves alive, the teacher would most likely need to remove the _____
A) sea anemones B) sea star C) gastropods D) ectoprocts