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IC3: Lessons 1-5 Review
| Question | Answer |
|---|---|
| What is the subunit for carbohydrates? | Glucose |
| What is the subunit for proteins? | Amino Acids |
| What is the subunit for fats? | Triglycerides |
| What unit is used to measure energy? | Calories |
| In order to be considered food, the substance must do 2 things. What are these 2 things? | Provide energy and building materials for your body |
| What waste product is created after food reacts with oxygen in the body's cells? | Carbon Dioxide |
| True or False: Calories are used when you exercise. | True |
| True of False: Your body's skin temperature increases after exercise. | False |
| True of False: Your heart beats slower to pump more oxygen to your body's cells. | False |
| Which type of food produces the most energy: Fats, Proteins, or Carbohydrates? | Fats |
| True or False: Something with zero calories can be considered food. | False |
| What atoms are in Carbohydrates? | C,H,O |
| What is special about the atoms that make up fats? | Very little Oxygen compared to Hydrogen and Carbon |
| How do carbs with many subunits taste? | bland |
| How do carbs with one subunit taste? | sweet |
| True or False: You will gain weight if you eat more Calories than your body uses. | True |
| What do we call all the substances your body needs? | Nutrients |
| True or False: The arrangement of atoms that make up the molecules of carbohydrates, fats and proteins helps determine the amount of energy it provides. | True |
| Compare the number of C, H and O in glucose and amino acids. | Same number of Carbon and Oxygen. Twice as many Hydrogen. |
| How are amino acids different from glucose? | Amino acids have Nitrogen and sometimes Sulfur |
| When reading a food label, what 3 things can identify a substance as food? | Fats, Carbohydrates or Protein |
| True or False: In order to be considered a food, a substance must have carbs, proteins AND fats. | False |
| In the model of burning, food reacts with __________ and produces carbon dioxide. | Oxygen |
| When burning food, chemical energy is converted into what types of energy? | Thermal energy, light energy, kinetic energy and sound energy |
| In order for a substance to be considered food it must do these two things. | 1. provide energy2. provide building materials for the cell |
| How many calories per gram do we get from carbs, proteins and fats? | carbs - 4 calories/gramprotein - 4 calories/gramfat - 9 calories/gram |
| What type of energy does food contain? | Chemical energy |
| When food is burned, chemical energy transforms into thermal, kinetic, sound and light energy. Energy isn't created or destroyed. What is the name of this law? The law of ___________________. | The law of conservation of energy. |
| What is the role of enzymes in digestion? | Enzymes speed up chemical reactions. They bring the food and water together so the reaction happens quickly. |
| If you do not use the energy you consume, you store it as ______. | Fat |
| Carbs, proteins and fats all get stored as ______. | Fat |
| What do laundry detergents add to them in order to break down food stains found on clothes? | Enzymes |
| Breaking down food is a chemical reaction. Food + _________ ----> subunits | water |
| Building up food is a chemical reaction. Subunit + Subunit ----> Food + ________ | water |
| When is storing fat a positive for animals? | when they hibernate |
| Building up of food is necessary to create __________ ___________ for cells. | building materials |
| Breaking downCarbs + water -----> _____________ | subunits (glucose + glucose) |
| Building upAmino acid + Amino acid -----> _________ + __________ | protein + water |
| True or False: Plants store food in the form of starch. | True |
| _____________ are used for growth and repair. | Proteins or amino acids |
Created by: sandersonla
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