51252
| Pregunta | Respuesta |
| is everyone's DNA unique?? | no identical twins have the same |
| T or F: does meiosis form gametes | T |
| What does DNA stand for. | Deoxyribonucleic acid |
| At what temperature do enzymes work best?? | 37.5*C |
| at what ph do enzymes work best? | PH 6 |
| Which enzyme breaks down starch? | Amylase |
| lipase breaks down fats into what two things? | Fatty acids + Glycerol |
| What are the two place that all 3 enzymes are produced? | Pancreas + Small Intestine |
| what is stored in the gall bladder | bile |
| why is bile important | neutralises stomach acid to produce the optium ph |
| T or F: Pepsin works best in alkaline conditions | False |
| What are the 3 types of animal tissue? | Muscle, Glandular and Epithelial |
| what is the function of the xylem and phloem? | to transport water, mineral ions and sucrose round the plant. |
| List 3 limiting factors of photosynthesis? | Light, CO2 and temperature |
| what ions does a plant need to absorb from the soil to make protein?? | nitrate ions |
| When a seedling begins to grow it is under ground and has no light where does it get its energy from?? | Starch |
| name 3 environmental factors that effect plant distribution?? | Any from: Temp, availability of water, light, nutrients and co2 |
| define: Tissue | a group of similar cells that work together to carry out a certain function. |
| define: Differentiaion | the process by which cells become specialized to a particular job |
| define: habitat | a place where an organism lives |
| What is the function of the small instestine? | to absorb soluble foods |
| What is the function of the large instestine? | to absorb water |
| define: enzyme | biological catalysts |
| what happens in the cytoplasm? | Most chemical reactions |
| What is the cell wall made of? | cellulose |
| what do guard cells open and close? | stomata |
| what shape are red blood cells? | concave discs |
| True/False the liver produces bile? | true |
| Cell membrane function | Controls movement of substance in and out of cell |
| What does the nucleus contain | Genetic material |
| what is in the vacuole | cell sap |
| what are in chloroplasts | chlorophll |
| what do ribosomes do | protein synthesis |
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