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science
| Question | Answer |
|---|---|
| What happens during photosynthesis? | nearly all living things obtain energy either directly or indirectly from the energy of sunlight that is captured |
| What is the definition of photosynthesis? | process by which a cell captures energy in sunlight and uses it to make food |
| What are autotrophs? | Plants that use energy from the sun to make their own food |
| What are heterotrophs? | Organisms which can not make their own food |
| Autotrophs convert what during photosynthesis? | Carbon dioxide (CO2) and water (H2O) into oxyegen (O2) and sugars (C6H12O6) |
| Stage 1: capturing suns energy | * proccess occurs mostly in leaves *cholorplasts in plant cells capture energy using photosynthisis rigment called clorophyll *energy preserves stage 2 |
| Stage 2: using energy to make food | *cells need H2O and CO2 for this stage. CO2 enters leaves through stomata and leaves through roots *CO2 and H2O undergo chemnical resistans in chloroplasts to prodiuce sugars (C6H12O6) and oxygen which extis leaves through stomats. |
| Sunlight strikes what of the leaf | the surface |
| What enters the plant through the roots and moves upward to the leaf | water |
| What exists through stomata on the underside of the leaf | oxygen |
| what enters the leaf through openings call stomata | carbon dioxide |
| what is produced by cloroplasts and is used by the cells for energy | sugars |
| what is resperstaion | process by which cells obtain energy from glucose by breaking down simple food molecules, such as sugar, and increasing the stored energy. |
| what is cellular resperation | different from the term 'respiration' which is used for breathing |
| The respiration equation | C6H12O6+6O2-6O2+6H2O energy |
| Sage 1 of respiration | in the cytoplasm, glucose is broken down into smaller molecules; oxygen is not involved and only a small amount of energy is released |
| Stage 2 of respiration | Takes place in mitocondria-there molecules are broken down even further by chemical rxns.These chemical reactions require oxygen(O2) and relese a great deal of ENERGY. CO2andH2O are also released in most animals these two products leave body by exhaling |
| What is fermentation? | Provides energy for cells without using oxygen for example alcholic fermentation used in baking or lactic and fermentation |
| Photosynthesis equation: 6CO2+6H2O-C6H12O6+6O2 | cellular respiration equation: C6G12O6+6O2-6CO2+6H2O+energy |
| Photosynthesis reactants: Carbon dioxide and water | cellular respiration reactants: glucose , sugar, and oxygen |
| Photosynthesis products: Sugar and oxygen | cellular respiration products: carbon dioxide and energy |
| Photosynthesis: autotroph | cellular respiration: Heterotrotoph |
| photosynthesis advantages: Organisms use photosynthesis don't rely on other organisms | cellular respiration advantages: Can release energy without oxygen |
| Photosynthesis disadvantages: theyll die without sunlight | cellular respiration disadvantages: must constantly eat food |
| Photosynthesis where the process occurring in illustration above: the plant absorbing the sun | cellular respiration where the process occurring in illustration above:The zebra eating the grass which converts into energy and releases CO2 |
| blood | bone marrow, in a liquid called plama, RBC- recive oxygen from respiratory systems lungs and carries it to organs and systems throughout the body wbc, increase due to infections |
| Bone | produce molecules usually proteins that communicate with other cells |
| Nerve | long and thin, carry and receive messages around the body |
| Muscle | movement |
| tissue | a group of similar cells working together to preform a specific function |
| epithaelial | closely packed cells that cover body surfaces and line internal structures , makes up the skin and the lining of the the stomach, largest organ of body |
| organelles | make up cells |
| organelle order | organelles-cells-tissue-organs- organ system-organism |
| what would happen if the nucleus was taken out of the cell | the cell would stop working |
| what controls the activities of the cell | the nucleus |
| list the 3 functions of the cell membrane | shape of the cell, protect eh cell, let things in and out of the cell |
| Eukariotic | have a nucleus |
| prokarioutic | dont have a nucleus |
Created by:
llagasse