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Food and Energy

IC3: Lessons 1-5 Review

QuestionAnswer
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 energy 2. provide building materials for the cell
How many calories per gram do we get from carbs, proteins and fats? carbs - 4 calories/gram protein - 4 calories/gram fat - 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 down Carbs + water -----> _____________ subunits (glucose + glucose)
Building up Amino 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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