3. a) Macromolecules contain varying amounts of energy, as shown in the table be

Question

3. a) Macromolecules contain varying amounts of energy, as shown in the table below. Kind of Molecule Energy Released in Body calories/grams) Protein Fat Carbohydrate Animals that hibernate in the winter require more fats in their diets. Fat will break down over a of time than carbohydrates and alow the animal to survive the winter. longer period Describe some other kinds of activities that would benefit the most from each molecule in the table. (2 points) HINT: Think about how animals use protoin and carbohydrates. b) Explain how the burning of food calories and the burning of wood are similar and how they are ifferent. (2 points) HINT: Think about what is needed to make wood burn and what is relessed 4. Carbohydrates have chemical bonds that are a good source of energy for living things. A monosaccharide is a carbohydrate made by plants when energy from the sun combines water and carbon diaxide. How are the two other types of carbohydrates formed? Give ex HINT: Think about more complex sugars in chains. amples of each type. (2 points)

Explanation / Answer

Hibernation causes the animal to conserve the energy during winter when there is shortage of food,during hibernation metabolism of the body is lowered and fats are used .

Carbohydrates and proteins acts as short term energy stores utilized for body for its activities without the loss of body fat ,proteins are used for the body functions ,if there is excess amount of carbohydrates and proteins they are converted in to fats

Both burning of wood and calories there is the emission of CO2 .

Energy is utilized to burn the calories(cellular respiration) ,Heat is utilized to burn the wood

Carbohydrates includes monosaccharides are simple sugars (glucose ,fructose,galactose),disaccharides are 2 monosaccharides joined together by dehydration or condensation reaction (maltose,sucrose lactose),polysaccharides are many monosaccharides joined together(starch,glycogen,cellucose)

plants contain Sugars such as maltose sucrose ,Starches in potatoes and cellulose,starch,amylose,pectin in cell walls .

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