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Science Chapter 3

science quiz memorization help.

Define Metabolism All chemical reaction in an organism
Define photosynthesis Light energy is converted into chemical energy by producers; uses enzymes
Define producers make their own food
What is the relationship between photosynthesis and producers? -most producers use sunlight to make their own food -they absorb sunlight and break it down for energy.
What is the equation for photosynthesis? 6CO2 + 6H2O + energy ---- C6H12O6 + 6O2 carbon dioxide water yields glucose oxygen
Define cellular respiration. Explain where in the cell it occurs. What is needed for the most glucose to be broken down? -Chemical reactions that break down glucose into simpler substances and released stored energy. - starts in cytoplasm and then moves into mitochondria. - uses oxygen to break down glucose for ATP (energy)
What is the equation for respiration? C6H12O6 + 6O2 ---- 6CO2 + 6H2O + Energy. also glucose oxygen carbon dioxide water
Define fermentation.... there are 3 parts - breakdown of glucose begins in cytoplasm and does not move into mitochondria - occurs when oxygen is not present- does not release as much energy as respiration.
what are waste products of fermentation. -lactic acid-formed in muscles cells after exercise - formed by some bacteria and is used to make yogurt and cheese. -alcohol and carbon dioxide- formed when yeast breaks down glucose.
explain the relationship between photosynthesis and respiration. photosynthesis makes the glucose that is broken down during respiration for energy.
what is the relationship between chloroplasts and mitochondria? chloroplasts absorb sunlight to make the glucose and mitochondria break down glucose for energy. Plants and animals have mitochondria. Plants only have chloroplasts
what is the difference between suspension and a solution? Both are mixtures but a solution has particles that are evenly mixed while a suspension does not. Therefore, particles fall out and fall to the bottom.
what is the difference between lipids and proteins? Why do cells get more energy from carbohydrates? -lipids are fats and oils -proteins are use to build muscles.
what is the difference between a control group and a experimental group? A control group does not change and is used for comparison. An experimental group has variable that is manipulated (changed).
What is the difference between an independent variable and a dependent variable? An independent variable is changed in an experiment. A dependent variable changes due to the independent variable.
Created by: 19kwalker



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