test two

Question 1

what is energy?

Answer 1

the ability to do work

Question 2

excess carbs in our bodies are ______

Answer 2

stored as fat

Question 3

humans evolve an adaptation to store fat in response to _____

Answer 3

famine

Question 4

which macro molecules have the greatest calorie value per gram?

Answer 4

fats

Question 5

which macromolecules have the least calorie value per gram?

Answer 5

nucleic acids

Question 6

the color of an object we see is the color that it______

Answer 6

reflects

Question 7

in plants light energy is collected by which organelle?

Answer 7

chloroplasts

Question 8

the principle that energy is neither created nor destroyed, but can change forms

Answer 8

conservation of energy

Question 9

animal movement requires a conversion of energy from ____ to ____

Answer 9

chemical to kinetic energy

Question 10

all energy in the biological world ultimately originates from

Answer 10

radiant energy

Question 11

our bodies are designed for long term energy storage of

Answer 11

triglycerides in fat cells

Question 12

glycogen is made up of

Answer 12

glucose molecules

Question 13

glycogen for the short term energy storage is

Answer 13

liver and muscle cells

Question 14

what is the difference between a calorie and a Calorie?

Answer 14

a Calorie equals 1000 calories

Question 15

macronutrients provided by food include

Answer 15

protein, carbohydrates, fats,

Question 16

organic molecule that is not considered a macronutrient

Answer 16

nucleic acids

Question 17

grains are a rich source of

Answer 17

carbohydrates

Question 18

dairy products are a good source of these macronutrients

Answer 18

proteins and fats

Question 19

legumes are a good source of these macronutrients

Answer 19

proteins

Question 20

macronutrients are

Answer 20

nutrients our body needs in large amounts

Question 21

in the process of digestion, proteins are broken down into ______, while carbs are broken down into _____

Answer 21

amino acids; sugars

Question 22

complex carbohydrates are made up of smaller

Answer 22

sugar molecules

Question 23

which of the following will be broken down into amino acids by the digestive system?

Answer 23

proteins

Question 24

cells utilize these macromolecules for energy requirements

Answer 24

carbohydrates

Question 25

cofactors are

Answer 25

Rate of reaction, active site, enzyme substrate binding, products produced

Question 26

an organism that can carry out photosynthesis is an

Answer 26

autotroph

Question 27

autotrophs are useful because

Answer 27

they remove carbon dioxide from the air, add oxygen, a source of food, source of fuel

Question 28

an autotroph ultimately gets its energy from the

Answer 28

sun

Question 29

which molecules are produced by autotrophs during photosynthesis?

Answer 29

glucose and oxygen

Question 30

____ have chloroplasts and produce_____ as a waste product, whereas ______ ingest their food and have _____ as a waste product.

Answer 30

autotrophs; oxygen; heterotrophs; carbon dioxide