Sciance😭😭😭 Flashcards

(135 cards)

1
Q

What is homeostasis?

A

Maintaining a stable internal environment.

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2
Q

Why is homeostasis important?

A

It keeps conditions right for cells.

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3
Q

What detects changes?

A

Receptors.

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4
Q

What sends messages?

A

Nervous and endocrine systems.

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5
Q

What is an effector?

A

A muscle or gland.

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6
Q

What is a stimulus?

A

A change in the environment.

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7
Q

What is an example of homeostasis?

A

Temperature regulation.

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8
Q

Which hormone lowers blood sugar?

A

Insulin.

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9
Q

Which hormone raises blood sugar?

A

Glucagon.

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10
Q

Which organ controls blood glucose?

A

Pancreas.

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11
Q

What happens when body temp rises?

A

Sweating/vasodilation.

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12
Q

What happens when body temp drops?

A

Shivering/vasoconstriction.

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13
Q

What part of brain controls temp?

A

Hypothalamus.

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14
Q

What is glucose used for?

A

Energy.

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15
Q

What is a reflex?

A

A fast automatic response.

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16
Q

Path of reflex arc?

A

Stimulus→receptor→sensory→spinal cord→motor→effector.

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17
Q

Does brain control reflexes?

A

No, spinal cord.

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18
Q

Why are reflexes fast?

A

Bypass the brain.

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19
Q

Example of reflex?

A

Hand withdrawal.

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20
Q

Sensory neuron role?

A

Carries message to CNS.

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21
Q

Motor neuron role?

A

Carries message to muscle.

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22
Q

hmmmmm!!!

A

keep it up your doing great

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23
Q

idk

A

this card was bad so got rid of it

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24
Q

idk 2.0

A

same as the other one

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25
Flat line means?
yeah i dont know either (i dont think this is on the test)
26
Steep slope means?
good job keep going you got this woohoo😁😁 | i dont think this is on the test
27
Peak means?
Max response.
28
Recovery phase?
Returning to normal.
29
What does a receptor do?
Detects a stimulus.
30
Photoreceptors located?
Eyes.
31
Mechanoreceptors detect?
yeah this question is hard but here is the answer you welcome. Touch/pressure. | This is probably not on the test
32
Chemoreceptors detect?
Chemicals.
33
Thermoreceptors detect?
Temperature.
34
Pain receptors?
Skin.
35
Role of receptors?
Send signals to CNS.
36
Sensory neuron function?
To CNS.
37
Motor neuron function?
To muscles.
38
Interneurons?
Connect neurons.
39
Where are interneurons?
CNS.
40
Longest neuron?
Motor.
41
Impulse type?
Electrical.
42
Myelin sheath?
Insulation to speed impulses.
43
What is a nerve?
Bundle of neurons.
44
Dendrites do?
Receive signals.
45
Axon does?
Sends signals.
46
Napaka bakla mo
yeah i dont know either maybe translate it | hint starts with fili
47
Synapse?
Gap between neurons.
48
Neurotransmitter?
Chemical messenger.
49
ang iyong paggawa ng mahusay ngunit ang iyong pa rin bakla
if you haven't came across the first flash card with this langauge then come back to this one ok
50
Two main parts of relfex and conscious actions?
CNS & PNS. Central nervous system Peripheral nervous system
51
CNS made of?
Brain/spinal cord.
52
PNS?
All nerves.
53
omg guess what
your gay and im not. | i got you didn't i hehehehehehe
54
AI is so useless bro
like what is this word -> Involuntary.
55
Autonomic examples?
Heart rate.
56
What does system control?
Fast responses.
57
Fertilisation?
Sperm + egg.
58
sup
i see u
59
what are the stages of the egg developing
Egg to zygote -> 24 hours -> The sperm fertilises Zygote to embryo -> 1 week -> Undergoes cell division Embryonic stage -> 8 weeks > Major body organs Foetal stage -> 9 - 40 weeks -> Build mass and get bigger
60
Placenta?
Provides nutrients.
61
Amniotic fluid?
Protection.
62
Puberty?
Changes for reproduction.
63
What triggers puberty?
Hormones.
64
Male part?
Stamen.
65
flower Female part?
carpel
66
Produces pollen?
Anther.
67
Receives pollen?
Stigma.
68
Pollination?
Transfer of pollen.
69
Fruit becomes?
Ovary.
70
Seed becomes?
Ovule.
71
period Cycle length?
~28 days. period slay queen period | you have to say all the text or i will...
72
Menstruation?
Shedding lining.
73
Ovulation day?
~14.
74
Hormone thickening lining?
Oestrogen.
75
Maintains lining?
Progesterone.
76
If no fertilisation?
Lining breaks down.
77
Egg released from?
Ovary.
78
Feedback loop?
System maintaining balance.
79
Negative feedback?
Reverses change.
80
Positive feedback?
Strengthens change.
81
Neg feedback example?
Temperature. | those who were think of the n word ❌❌
82
Pos feedback example?
Childbirth.
83
Effectors?
Muscles/glands.
84
Stimulus?
Change triggering response.
85
Atmosphere?
Gases.
86
Hydrosphere?
Water.
87
Lithosphere?
Land.
88
Biosphere?
Life.
89
Clouds in?
Atmosphere.
90
Soil in?
Lithosphere.
91
Oceans in?
Hydrosphere.
92
Respiration releases?
CO₂.
93
Photosynthesis absorbs?
CO₂.
94
Burning fuels releases?
CO₂.
95
Decomposition?
Breaks down matter.
96
Long-term storage?
Fossil fuels.
97
Deforestation effect?
More CO₂.
98
what is a sink and what is a source
sink stores carbon (trees) while a source produces cardon (burning fossil fuels)
99
Greenhouse effect?
Heat trapped.
100
A greenhouse gas?
CO₂.
101
Why important?
Keeps Earth warm.
102
Enhanced effect cause?
Human emissions.
103
What traps heat?
Gases.
104
Add CO₂ by?
Burning fuels.
105
Global warming?
Temp rise.
106
Male gametes?
Sperm.
107
Female gametes?
Eggs.
108
Testes produce?
Sperm.
109
Ovaries produce?
Eggs.
110
Uterus role?
Development.
111
Fallopian tube?
Fertilisation site.
112
Semen?
Fluid with sperm.
113
Internal fertilisation?
Inside body.
114
What animals use internal fertilisation?
Mammals.
115
External fertilisation?
Outside body.
116
what animals use external fertilisation?
Fish.
117
Which protects embryo?
Internal.
118
More gametes needed?
External.
119
Why many eggs?
Low survival.
120
Sexual needs?
Two parents.
121
Asexual needs?
One parent.
122
Sexual offspring?
Different.
123
Asexual offspring?
Clones.
124
Asexual example?
Budding.
125
Sexual example?
Humans.
126
Advantage asexual?
Fast.
127
Negative feedback loop?
Reverses change.
128
Example?
Temperature.
129
Positive feedback?
Amplifies.
130
Example?
Labour.
131
Which maintains homeostasis?
Negative feedback loop.
132
Both involve?
Stimulus→response.
133
Effectors role?
Carry out response.
134
what does LH do
LH (Luteinising Hormone) is a hormone made by the pituitary gland, and its main job is to help control the reproductive system. In females: LH triggers ovulation — the release of an egg from the ovary. It also helps the ovary produce hormones like oestrogen and progesterone. In males: LH tells the testes to make testosterone, which is needed for sperm production and male development.
135
what does FSH do
SH (Follicle-Stimulating Hormone) is another hormone made by the pituitary gland. Its job is to help control growth, development, and the reproductive system. In females: FSH helps grow and mature follicles in the ovaries (each follicle contains an egg). It helps the ovaries produce oestrogen. Basically, FSH gets the egg ready, and LH later triggers ovulation. In males: FSH helps the testes produce sperm. It works with testosterone to make healthy sperm cells.