Even though the steps of photosynthesis that actually produce sugar molecules are part of the carbon
fixation reactions, the light-dependent reactions are absolutely essential for sugar synthesis. Explain
the role of the light-dependent reactions in the formation of the end products of photosynthesis. What will be an ideal response?
Concepts to Consider: The light-dependent reactions produce ATP and NADPH, which are two
molecules that contain much of the original energy absorbed from the sun; it is these compounds that
supply energy to the endergonic process of carbon fixation.
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Transcription factors like Pax6 interact with their target genes by binding short sequences adjacent to the 5' end of a gene sequence called ____ elements
Fill in the blank with the appropriate word.
Enterobius vermicularis is
A. common only to the tropics and subtropics. B. an intestinal helminth that easily contaminates fingers and fomites. C. a whipworm. D. often fatal in heavy infestations. E. All of the choices are correct.
Four of the five answers listed below are characteristic of dicots. Select the exception
a. vascular bundles organized in a ring b. veins form a net-like array c. flower parts in fours or fives d. two cotyledons e. pollen grains with one pore or furrow
What distribution pattern is the most common in the natural world?
a. random b. uniform c. clumped d. stratified or layered e. bimodal