Compare and contrast facilitated diffusion and active transport
What will be an ideal response?
Both require membrane transport proteins. However, facilitated diffusion does not require energy and moves substances down a concentration gradient. Active transport requires energy and moves substances against a concentration gradient.
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One mechanism of genomic imprinting silences an allele by DNA ____
a. methylation b. mutation c. transposition d. deletion e. inversion
A muscle that causes any type of movement in a joint when it contracts is called a(n) ____
a. flexor b. agonist c. depressor d. antagonist e. extensor
How is breathing rate regulated in humans before and during physical exercise?
What will be an ideal response?
When plants are produced by cloning, which process is most directly involved?
a. mitotic cell division b. binary fission c. meiotic cell division d. gamete production e. budding