organismal bio Flashcards

1
Q

what is the regulation of the nervous system?

A

nervous control

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2
Q

what system has a variety of hormones on how the body responds to stimuli?

A

endocrine system

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3
Q

do plants have a nervous system?

A

nope

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4
Q

what is responsible for coordinating the functions in our body?

A

nervous system

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5
Q

how does our body regulate bodily functions?

A

homeostasis by the release of hormones

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6
Q

what is the main organ used by vertebrates in nervous control?

A

brain

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7
Q

what is the simple system used by invertebrates, which consists of individual nerve cells

A

nerve nets

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8
Q

these carry info. to brain and spinal cord to muscles and glands

A

nerves

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9
Q

enumerate parts of a nerve cell

A

nucleus, soma (cell body), dendrites, axon, axon terminals, and myelin sheaths

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10
Q

part of a nerve cell where it transmits electrochemical signals to other nerve cells

A

axon

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11
Q

part of a nerve cell where it receives electrochemical signals from other nerve cells

A

dendrites

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12
Q

part of a nerve cell that passes signals to other nerve cells

A

axon terminals

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13
Q

part of a nerve cell where it allows the signals to pass through efficiently and fast

A

myelin sheaths

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14
Q

this is a part of the nervous system where the brain and spinal cord are located

A

midline; central nervous system

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15
Q

this is a part of the nervous system where cranial and spinal nerves are

A

peripheral nervous system

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16
Q

what serves as the highway of messages?

A

spine/spinal cord

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17
Q

the plant cells generate electrical impulses just like the nerves. what is this called?

A

action potential

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18
Q

enumerate examples of defense mechanisms of plants

A

thickening of layer
bad odor
distasteful compounds

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19
Q

how do plants process info.?

A

through their environment

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20
Q

this is the movement in organisms regarding physical, mental, and behavioral changes.

A

circadian rhythms

21
Q

how long do organisms experience the circadian rhythm?

A

24-hour cycle or a specific period

22
Q

what is the complex network of glands and hormones that control different activities in the body?

A

endocrine system

23
Q

these are released to coordinate and control metabolism

24
Q

this is called the master hormone because it can control other hormones present

A

hypothalamus

25
what hormone controls the growth and development of a person?
pituitary
26
the pituitary gland releases what hormones in females?
oxytocin
27
what hormone receives info. on the state of light and dark cycle which lets us know when we are sleepy?
pineal
28
what hormone does pineal release?
melatonin
29
what controls the heart, brain development, bone ligaments, muscles, and digestive functions?
thyroid and parathyroid
30
our parathyroid and thyroid glands are dependent on what source?
iodine
31
true or false our body produces iodine so we don't have to worry about the lack of supply.
false. We obtain iodine from salt and seafood.
32
what organ is responsible for the production and maturation of immune cells?
thymus
33
what produces steroid hormones, adrenaline (epinephrine), and non-adrenaline that activate the fight or flight response?
adrenal glands
34
this releases insulin and glucagon
pancreas
35
what does the insulin do?
decreases the sugar in our blood
36
what does the glucagon do?
increase the sugar in our blood
37
what organ/gland is responsible for the production of hormones for the development of the secondary sex characteristics
gonads
38
what do gonads produce in females?
ovary and placenta
39
what do gonads produce in males?
testicles
40
this is a hormone that stimulates growth and cell division
growth hormone
41
this is called the love hormone and aids with uterine contractions (in females)when giving birth
oxytocin
42
stimulates a decrease in blood sugar levels
insulin
43
this stimulates the development of the female reproductive system
estrogen (insert progesterone)
44
this stimulates the reproduction of the male reproductive system
testosterone
45
true or false males and females all have testosterone, estrogen, and progesterone
TRUE
46
Why do plants need hormones?
for certain physiological processes
47
what plant hormone controls a plant's response to light and gravity?
auxin
48
this is a hormone that promotes food growth and is present during the early stages of a plant
gibberellins
49
this plant hormone stimulates cell division to grow fruit, roots, and branches, mostly in the middle to adult stage in plants.
cytokinin