GCU BIO202 EXAM 1 VERIFIED SOLUTIONS 2023/2024
hormones promote body homeostasis
Endocrine system
nervous system
neurotransmitter
hormone
negative feedback and its role in regulating blood levels of the various hormones
Three types of intercellular communication pathways that enable the bo...
Ans: Hormones react on each other and help keep homeostasis in an organism.
Hormones released from one gland can tell other glands to make different hormones
2). Endocrine system
Ans: -uses hormones
-effects many organs
-is slower and longer lasting
3). Nervous system
Ans: -uses electricity and chemicals
-has a specific effector organ
-faster
4). Neurotransmitter
Ans: a chemical compound released by one neuron to affect the trans membrane
potential of another
5). Hormone
Ans: -A compound that is secreted by one cell and that travels through the bloodstream
to affect the activities of cells in another portion of the body.
-Turn existing enzyme "on" or "off"
6). Negative feedback and its role in regulating blood levels of the various hormones
Ans: -response to changed body condition
-ex. signals tell body to make changes that will bring back to normal level.
-once back to normal, will turn off.
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, 7). Three types of intercellular communication pathways that enable the body to maintain
homeostasis
Ans: -direct communication
-paracrine
-endocrine
8). Direct communication
Ans: occurs between 2 types of the same cell
9). Paracrine
Ans: Most common. uses chemical signals to transfer from cell to cell within single
tissue
10). Endocrine
Ans: slower. release into bloodstream. Alters metabolic activities.
11). Target organ
Ans: specific cells that posessess receptors needed to bind and "read" hormonal
messages
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