Research on brain development suggests that risky behavior in teens may be the result of incomplete development and changes that occur in the prefrontal cortex of the brain.
The prefrontal cortex is located in the frontal lobe, behind the frontal cortex. The function of this region is for executive function, an ability to differentiate good things from bad things and consequence of an activity. Incomplete development will impair those abilities, makes the teens do risky behavior.
Facilitated diffusion. It is a passive transport mechanism in which carrier proteins shuttle molecules across the cell membrane without using the cell’s energy supplies. Instead, the energy is provide by the concentration gradient, which means that molecules are transported from higher to lower concentrations, into or out of the cell. The carrier proteins bind to glucose, which causes them to change shape and translocate the glucose from one side of the membrane to the other. Red blood cells use facilitated diffusion to absorb glucose.
Answer:
<u>Part A</u>
Drag these words to the space
(1) tRNA: "contains an anticodon" "has amino acids covalently attached in active form"
(2) mRNA: "has introns and exons" "contains genes for a protein"
(3) rRNA: "is found in ribosomes" "is the most abundant form of RNA"
<u>Part B</u>
(1) Replication: Leave blank because no RNA is involved
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(2) Transcription/RNA processing: mRNA because it is synthesized from the information in DNA
(3) Translation: rRNA and tRNA
