Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Science midterm
| Term | Definition |
|---|---|
| steps of the scientific method | -problem -hypothesis - experiment - observation - conclusion - repeat experiment |
| Problem | a question the scientist is trying to find an answer |
| Hypothesis | a prediction about the possible answer to the problem |
| Controlled experiment | test only 1 factor |
| Variable | the factor that's tested |
| data | observations |
| conclusion | the answer |
| control group | the factor that doesn't change. used for comparison |
| experimental group | get what your testing (changes) |
| Dependent variable | what's measures / tested |
| Independent variable | what changes / tested |
| What's the difference between qualitative and quantitative data | qualitative: measured by the quality of something rather than its quantity. quantitative:numerical information that can be counted or measured, answering "how many," "how much," |
| How can you make an experiment more valid? | multiple tests and similar results. |
| "Every Good Student Needs Their Rest Rest Rest" | excretion, growth, synthesis, nutrition, transport |
| Metabolism | chemical reactions in your body's cells that convert food and drink into energy |
| Homeostasis | stable or balanced internal environment Dynamic equilibrium- another word for homeostasis |
| Excretion | removal from the organism, of waste substances produced in the cells as a result of their life activities |
| Growth | increase in size and/or number of cells of an organism |
| Synthesis | large molecules produced from smaller molecules in an organism |
| Nutrition | the process of providing or obtaining the food necessary for health and growth |
| Transport | involves both absorption and circulation |
| Respiration | energy's obtained from breakdown of food; stores in a form thats used to carry life activities |
| Reproduction | production of new individuals not necessary for the life of a single organism |
| Regulation | controlled and coordination of all the various or an organism in order to maintain homeostasis |
| Positive feedback | pushes a system in the same direction (increases until its over) |
| Negative feedback | counteracts a change, brink back to set point (up and down or down and up)- body temp |
| organic | carbon and hydrogen |
| inorganic | doesn't contain BOTH carbon and hydrogen |
| carbohydrate complex c. ex. | energy rich organic compounds ex: simple sugars (glucose) |
| lipid | fat and oil |
| protein | carbon, hydrogen, oxygen, nitrogen, and sometimes sulfur |
| Building block for ... Carbohydrates Lipid Proteins | C- simple sugars L- fatty acids, glycerol P- amino acids |
| macromolecule | large # of atoms, protein, nucleic acid or synthetic polymere |
| function of an enzyme | large complex protein molecules, large set of biological catalyst |
| enzyme substrate complex | fit together like puzzle peice |
| ecology | organisms and physical environment |
| levels of organization big to small | biosphere, ecosystems, biomass, community, pop, species Big Elephants butts Can poop small |
| species | smallest- organisms of the same kind that mate and produce offspring |
| pop | all members of the same species that live in an area |
| community | all pops plant and animal in the same area |
| ecosystem | community (all living things) and physical environment (water, air) interacting and functioning together |
| biosphere | part of earth which life exists. very big included many ecosystems and biomes |
| abiotic and biotic factors | a-nonliving b- living |
| biome | a large geographical area characterized by its climate (temperature, rainfall) and the specific plants and animals that have adapted to live there |
| autotroph heterotroph | a- produce own food h- cant produce own food(eats other food) |
| herbivores | eat plants |
| carnivore | eat other animals |
| predetor | kill and consume their prey |
| scavenger | feed on dead animals |
| omnivore | plants and animals |
| decomposers | break down organc wastes and dead organisms and return it to environment |
| producer | makes own food |
| consumer | feed on plants are primary feed on consumers are secondary omnivores may be both |
| pyramid of biomass | decreases at each higher feeding level |
| niche | role of an organism plays in the ecosystem |
| how is carbon cycled in an ecosystem | photosynthesis, respiration, burning fossil fuels, decomposeres |
| environmental pollution | increases due to rapid human pop growth and increased tech caused change in chem |
| exploitation | self issues of wild animals and plants |
| Biocide | a chechimal used to kill living things ex:pesticide |
| stage | what u put the slide on |
| specimen | material being viewed |
| objective lens | enlarges 4x, 10x, or 40x |
| ocular, eyepeice | enlarges by adding 10x |
| how the final image looks under microscope | - upside down - enlarged - inverted |
| diaphragm | controls light |
| prokaryote | single cell organism that lacks a nucleus and other membrane organelles ex: bacteria |
| eukaryote | an organism who cells contain a nucleus within a membrane ex: animal cell |
| cytoplasm | (watery fluid) contains cell organelle |
| cell organization | organelle,cell,tissue,organ,organ system,organism oranges can tell other oranges smell old |
| mitochondria | in cellular respiration "powerhouse" |
| osmosis | diffusion of water through a membrane |
| active transport | requires ATP to move particles through membrane |
| passive transport | passage of materials through the cell membrane without the use of cell energy |
| pinocytosis | indigestion of bacteria and other material |
| photosynthesis | food making process. connection between sun and energy 6CO₂ + 6H₂O + Light Energy → C₆H₁₂O₆ + 6O₂ (glucose is closer to cellular in the alphabet so it comes first in that equation) |
| glucose | sugar made by plants C₆H₁₂O₆ |
| cellular respiration | cells convert nutrients (glucose) & oxygen into usable energy (ATP), releasing CO2 and H20 C₆H₁₂O₆ (Glucose) + 6O₂ (Oxygen) → 6CO₂ (Carbon Dioxide) + 6H₂O (Water) + Energy (ATP) (glucose closer to cellular in alphabet comes 1 in that equation) |
| what are photosynthesis and cellular resp. reversed | whatever goes into photo. comes out of cell resp. |
| ATP | main energy currency/ power source for cell and all living things |
| anaerobic aerobic | ana- no oxy., small amount of energy along w/ alcohol and lactic acid aer- requires oxygen - releases more e. |
| mitosis | identical daughter cells - contains info (genes) ,- control cell activity |
| Meiosis | one cell divides twice to produce four unique cells |
| coarse fine adjustment | c- brings specimen into focus by using the stage f- sharpens the focus |
Created by:
28cespel