What directly supplies the energy for oxidative phosphorylation?
a. ATP
b. NADH
c. glucose
d. proton gradient
e. ATP synthase
D
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Why are steroid hormones bound to carrier proteins in the blood?
a. to prevent them from entering non-target cells b. to keep them in an inactivate state c. to mask hydrophobic groups on the steroids to allow for circulation in the blood d. to help them bind to surface receptors and trigger a cellular response e. to help them bind to surface receptors and trigger endocytosis
You examine an animal and find that it an excretory tubule with a closed proximal end immersed in hemolymph and a
distal end that empties into the gut. You correctly identify this tubule as a ____.
a. nephron b. hepatic tubule c. metanephridium d. Malpighian tubule e. protonephridium
A cancer originated from muscle tissue is called
A. Carcinoma B. Sarcoma C. Lymphoma D. Leukemia
What is the correct sequence of steps in the central dogma?
a. RNA->DNA->Protein b. RNA->Protein->DNA c. DNA->RNA->Protein d. DNA->Protein->RNA