The first amino acid in a bacterial protein is N-formylmethionine; the presence of the formyl group makes it the initiator amino acid.
Answer the following statement true (T) or false (F)
True
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Which of the following is generally more complex than the others?
A. Archaea B. Bacteria C. Prokarya D. Eukarya E. microorganisms
In the chloroplast, cytochrome b6f is an important complex in the photosynthetic electron transport chain because it accepts electrons from photosystem II and donates them to photosystem I
Another vital function of cytochrome b6f is that during its reduction-oxidation cycle it pumps ______ from the _____. A. hydrogen ions; stroma into the thylakoid B. electrons; stroma into the thylakoid C. hydrogen ions; thylakoid into the stroma D. electrons; thylakoid into the stroma
What is the function of the vasa recta?
A. It maintains the concentration gradient established by the loop of Henle. B. It helps determine the final concentration of the urine. C. It filters the blood within the glomerulus. D. It secretes the hormone renin in response to a drop in blood pressure. E. None of these answer options is correct.
Why is it better for a seed to germinate at a distance from the parent plant?
a. so it will not compete with the parent plant for nutrients from the soil b. so it will not compete with the parent plant for sunlight c. so it will not compete with the parent plant for water d. all of these