Facilitated diffusion occurs with the help of:
A) peripheral proteins.
B) recognition proteins.
C) communication proteins.
D) transport proteins.
E) ribosomes.
Answer: D
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How does adaptive immunity differ from innate immunity?
A) Adaptive immunity is specific to each pathogen. B) Adaptive immunity generates immunological memory and its effects are immediate upon exposure to a pathogen. C) Adaptive immunity generates immunological memory and is specific to a pathogen. D) Adaptive immunity generates immunological memory. E) Adaptive immunity's effects are immediate upon exposure to a pathogen.
Many of the genes in the chloroplast genome encode proteins involved in ________, whereas mitochondrial genomes primarily encode proteins involved in ________
A) autotrophy / DNA replication B) photosynthesis / glycolysis C) autotrophy / glycolysis D) photosynthesis / oxidative phosphorylation
Which of the following is not true of the formation of a bacterial translation initiation complex?
A. The 30S ribosome associates with the mRNA before the 50S ribosome. B. N-formylmethionyl-tRNAfMet binds in the P site. C. IF-3 binding to GTP is required for the charged tRNA to associate with the first mRNA codon. D. IF-1, IF-2, and IF-3 dissociate upon the 50S subunit binding.
The most common type of skin cancer is __________. Fill in the blank(s) with the appropriate word(s)