Membrane-bound organelles have been an important component in the evolution of complex, multicellular organisms. Which of the following best summarizes an advantage of eukaryotic cells having internal membranes?
(A) Eukaryotic cells are able to reproduce faster because of the presence of organelles.
(B) Some organelles, such as mitochondria and chloroplasts, are similar to prokaryotic cells in structure.
(C) Organelles isolate specific reactions, increasing metabolic efficiency.
(D) Compartmentalization leads to a higher mutation rate in DNA, which leads to more new species.
Ans: (C) Organelles isolate specific reactions, increasing metabolic efficiency.
You might also like to view...
Plants that are called C4 plants are better able to utilize ________ than C3 plants.
A. oxygen B. minerals C. water D. carbon dioxide E. chlorophyll
The RNA world proposal suggests that the first information molecules were
a. transfer RNA. b. ribosomes. c. messenger RNA. d. ribozymes. e. unpaired strands of DNA.
"Sticky ends" are:a
the single-stranded ends of a DNA segment created by some restriction enzymes. b. a problem in recombinant DNA technology because they form loops of single-stranded DNA. c. double-stranded ends of a DNA segment created by some restriction enzymes. d. sites of the origin of replication in prokaryotes.
e. sugar molecules that are bound to the ends of a DNA fragment.Human infection with Erysipelothrix rhusiopathiae takes a milder form and is known as:
A. Impetigo B. Erysipelas C. Necrotizing fasciitis D. Erysipeloid