The four main catagories of large biological molecules present in living systems are
a. Proteins, DNA, RNA, steroids
b. Monosaccharides, lipids, polysaccharides, and proteins
c. Nucleic acids, carbohydrates, monosaccharides, and proteins
d. RNA, DNA, proteins, and carbohydrates
e. Proteins, nucleic acids, polysaccharides, and lipids
Ans: e. Proteins, nucleic acids, polysaccharides, and lipids
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The term monoecious is best described as referring to the flower in what way?
A. It refers to the number of flower parts. B. It describes where the parts are located. C. It has nothing to do with flower parts. D. It refers to the carpellate and staminate parts. E. It means there are missing parts on the flower.
Which of the following correctly describes the path of fluid as it is filtered from the blood and flows through the nephron?
A. Bowman's capsule ? proximal convoluted tubule ? loop of Henle ? distal convoluted tubule ? collecting duct B. collecting duct ? Bowman's capsule ? proximal convoluted tubule ? loop of Henle ? distal convoluted tubule C. Bowman's capsule ? loop of Henle ? proximal convoluted tubule ? distal convoluted tubule ? collecting duct D. Bowman's capsule? distal convoluted tubule ? loop of Henle ? proximal convoluted tubule ? collecting duct E. collecting duct ? distal convoluted tubule ? loop of Henle ? proximal convoluted tubule ? Bowman's capsule
Blood usually continues on from capillaries to
enter ____ in its travel through the human body. a. arterioles b. venules c. arteries d. veins e. other capillaries
Amino acids are delivered in their appropriate order by
A) mRNAs. B) RNA-induced silencing complexes (RISC). C) ribozymes. D) rRNAs. E) tRNAs.