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33 Cards in this Set
- Front
- Back
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What are the effects of Marijuana, cocaine and alcohol? |
Marijuana says HAI o a CHAP next to A FAN |
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How does the Nervous system work? |
Stimulus- receptors- CNS- effector- response |
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How do neurons and glial cells communicate? |
controls senses and gathers info about homeostasis through nerve impulses. |
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What are the 2 main parts of the nervous system and what do they do. |
Central NS =controls body temp, breathing, blood pressure. Peripheral NS= connects CNS to limbs and organs |
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What do sensory, motor and connector neurons do? |
Sensory-converts external stimuli Motor- forms a path for impulses to reach muscles or glands from the CNS Connector- forms connections between neurons and act as a liaison. |
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Nervous system vs Endocrine system |
NS= instantaneous quick responses ES= slower responses that last longer |
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Voluntary vs involuntary responses |
Voluntary= involves the brain, conscious of the act. eg. talk, lift, walk Involuntary= activated through reflexes, automatic and no thinking. e.g constriction of pupil in light. |
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Hypothalamus |
Maintains homeostasis, links the nervous and endocrine system, produces hormones that control sleep cycles and body temperature. |
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Pituitary gland |
Acts after hypothalamus prompts it to release or inhibit hormone production. |
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Thyroid |
Regulates metabolism and breaks down food into energy |
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Parathyriods |
Control calcium levels in the bones and blood regulation. |
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Adrenal glands |
Secretes adrenalin in stressful situations, regulates metabolism and blood pressure |
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Pineal gland |
Controls out Circadian Rhythm (body clock) and certain reproductive hormones. |
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Reproductive glands |
Stimulates development of males and females. eg. hair, voice changes, acne |
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Pancreas |
Breaks down food and controls blood sugar levels. |
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Abiotic vs biotic factors |
Abiotic = nonliving things that effect ecosystems. eg. Humidity, wind, light, water, minerals and gases. Biotic = Any living component in an ecosystem. eg. bacteria, fungi, plants, animals |
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What is the Carbon Cycle? |
The process which carbon is emitted and recycled through the hydrosphere. |
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What is the nitrogen cycle? |
Describes how atmospheric and environmental nitrogen is converted into organic nitrogen to be used by living organisms |
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What is the energy cycle? |
The process by which energy is take from the sun, absorbed by plants through their chloroplasts and use the process of photosynthesis to produce sugars. |
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What is the cause and effect of greenhouse gases? |
Coal burning releases carbon dioxide into the atmosphere and heat is absorbed into the earth's atmosphere. |
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What is the cause of the ozone layer depletion? |
CFC's are released into the atmosphere, creating higher UV levels = cancer |
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What is the cause of climate change? |
Human expansion of the greenhouse effect, loss of sea ice, accelerated sea level rise for longer and more intense heat waves. |
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What compound makes up a Metallic bond? |
Metal + Metal |
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What compound makes up a Covalent bond? |
Non-metal + non-metal |
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What compound makes up a Ionic bond? |
metal + non-metal |
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What is a compound? |
A mixture of two elements. |
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What are some examples of compounds? |
Say N2O to Laughing gas, say NaOH to Lye. |
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What is combustion? |
When hydrocarbon reacts with oxygen to make CO2 and water. (puts together) |
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What is Precipitation? |
When 2 solutions containing insoluble salt combine and the salt falls out. ( 2 solutions mixed & a solid forms) |
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What is corrosion? |
The gradual destruction of materials. When metals in manufactured states return to their natural oxidation states. (rust) |
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What is decomposition? |
The separation of a chemical compound into elements or simpler compounds. (breaks down) |
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Exothermic vs Endothermic reactions |
Exo= Heat is absorbed Endo= Heat is released Both cause energy levels to change |
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Combustion vs Respiration |
C= The energy released is heat R= the energy released are enzymes and is at a lower temperature. |
