What is similar about G protein-coupled receptors (GPCRs) and receptor tyrosine kinases (RTKs)?
A. Both are directly bound to G proteins
B. Both can activate phospholipase C
C. Both are enzymes
D. Both are activated by autophosphorylation
B. Both can activate phospholipase C
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The only known "solution" to the loss of efficiency caused by rubisco-oxygenating RuBP is to raise the concentration of CO2 at the enzyme, using ATP generated by the thylakoid. Which of the following is likely most correct of such plants?
A. They are tolerant of shade. B. They require bright, sunny habitats. C. They do not produce O2. D. They do not produce reactive O2 species. E. They require high CO2 levels.
Sexually reproducing animals that can produce both eggs and sperm are called ____
a. invertebrates b. asexual c. hermaphrodites d. amniotes e. zygotes
Growth __________, but development __________
a. is qualitative; is quantitative b. is measured by increased cell numbers; is measured by increased cell specialization c. occurs only in infants; occurs only in adolescents d. continues throughout life; stops at puberty e. is objective; is subjective
The extraembryonic membrane that contains fluid to cushion and protect the embryo is the __________
Fill in the blank(s) with the appropriate word(s)