If a toxin, such as a bacterial toxin, destroys ribosomes, what cellular activity will be affected first?

a. protein synthesis
b. DNA synthesis
c. movement
d. energy storage
e. active transport


A

Biology & Microbiology

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Electrons farthest from the nucleus have the ____________

A. least potential energy B. most kinetic energy C. least kinetic energy D. most potential energy E. same amount of energy as electrons closest to the nucleus

Biology & Microbiology

Fossil evidence places the origin of angiosperms in the Jurassic period, at least 144 million years ago. The major lineages of angiosperms today were in place approximately 100 million years ago. Now, angiosperms make up 95% of all modern plant species. What relationship between angiosperms and animals may have aided the rapid diversification of flowering plants?

A. Animals eating the plants helped to disperse both pollen and seeds. B. Competition with animals helped spread pollen and seeds. C. Animals died off, allowing more plants to survive. D. Animals became carnivores, allowing plants to survive. E. Coevolution with animals helped spread pollen and seeds.

Biology & Microbiology

What is "coupling of chemical reactions"? Provide two relevant biological examples to help explain

the importance of this process to living organisms. What will be an ideal response?

Biology & Microbiology

Pathogen is ________

A) a name given to all bacteria B) a name given only to bacteria that cause serious illnesses in humans C) a name given to all archaea D) a name given only to helpful bacteria

Biology & Microbiology