Chemistry Unit: Lesson 5/6/7 Quiz

Scientist, Rudolph Schoenheimer was the first to show that are constantly turning over in the body (remember the rat data)...new ones are being made from the food while old ones are being destroyed.

• Proteins
• Carbohydrates

• Fats

• Vitamins

The following is a subunit of proteins that aid in the growth and repair of our bodies and help in plant food storage.

• Glucose

• Amino Acids

• Nitrogen fixation

• Oxygen molecules

Isotopes are rare atoms with a mass that is different from the commonly found atom; in the rat data of Lesson Five, we learned that Leucine, a protein given to the rats was made with isotopes of hydrogen and ; and we found out that is found in all of the parts of the body.

• Hydrogen
• Carbon
• Oxygen

• Nitrogen

In what area did the Mayan children find the highest average growth in height?

• Guatemala

• Mexico

• Canada

• United States

Some animals store food during seasons where food is scarce...during hibernation, they are able to survive because their slows down to conserve energy.

• metabolism
• heart rate

• body temperature

• activity level

Plants can only make their own food through photosynthesis, when there is sunlight; when there is very little sunlight, plants cannot make their own food...they must depend on food they have stored, which one of the following is an example of this phenomenon?

• Evergreen trees that drop their leaves to conserve food for the continuous growth of the tree.

• Corn and beans are able to store food in their seeds because of the source of carbohydrates, proteins, and oil within the seed.

• A palm tree in Florida conserves food by growing coconuts.

• Banana trees in Hawaii lure monkeys to eat the fruit in order to conserve energy.

Food and water are transported in both humans and plants by which type of system?

• Circulatory

• Nervous

• Skeletal

• Digestive

In our plant investigations, we have found that plants convert light energy to grow and they need water to grow...what do they NOT need to grow?

• Nitrogen

• Soil

• Oxygen

• Carbon Dioxide

What do plants produce with light along with water and carbon dioxide?

• Fats

• Proteins

• Glucose

• Vitamins

Carbon dioxide is needed for food production in plants but where does the carbon come from when we “breathe it out”?

• Vitamins

• Minerals

• Food Molecules

• Water