If the first living thing was produced on Earth,
A. it was produced in the atmosphere.
B. it was an aerobic heterotroph.
C. spontaneous generation occurred.
D. None of these answers is correct.
C. spontaneous generation occurred.
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For each of the three basic macromolecules (proteins, polysaccharides, and nucleic acids), identify the monomer, its activated/carrier form, and the directionality of the molecule.
What will be an ideal response?
The p700 photosystem is designated as photosystem
“I” because it a. absorbs light energy first. b. absorbs more energy than photosystem II. c. is the primary photosystem. d. is thought to have evolved first. e. obtains electrons before photosystem II.
Cl has 7 electrons in its outer shell and K has 1 electron in its outer shell. How is the bond in Cl2 different from the bond in KCl?
A. Cl2 is ionic and KCl is covalent. B. Cl2 is covalent and KCl is ionic. C. Cl2 and KCl are both ionic.
In preparation for cell division, the chromosomes are replicated and compacted into_____
Fill in the blank(s) with the appropriate word(s).