test two Flashcards Preview

Biology 101 > test two > Flashcards

Flashcards in test two Deck (30)
Loading flashcards...
1

what is energy?

the ability to do work

2

excess carbs in our bodies are ______

stored as fat

3

humans evolve an adaptation to store fat in response to _____

famine

4

which macro molecules have the greatest calorie value per gram?

fats

5

which macromolecules have the least calorie value per gram?

nucleic acids

6

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

reflects

7

in plants light energy is collected by which organelle?

chloroplasts

8

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

conservation of energy

9

animal movement requires a conversion of energy from ____ to ____

chemical to kinetic energy

10

all energy in the biological world ultimately originates from

radiant energy

11

our bodies are designed for long term energy storage of

triglycerides in fat cells

12

glycogen is made up of

glucose molecules

13

glycogen for the short term energy storage is

liver and muscle cells

14

what is the difference between a calorie and a Calorie?

a Calorie equals 1000 calories

15

macronutrients provided by food include

protein, carbohydrates, fats,

16

organic molecule that is not considered a macronutrient

nucleic acids

17

grains are a rich source of

carbohydrates

18

dairy products are a good source of these macronutrients

proteins and fats

19

legumes are a good source of these macronutrients

proteins

20

macronutrients are

nutrients our body needs in large amounts

21

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

amino acids; sugars

22

complex carbohydrates are made up of smaller

sugar molecules

23

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

proteins

24

cells utilize these macromolecules for energy requirements

carbohydrates

25

cofactors are

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

26

an organism that can carry out photosynthesis is an

autotroph

27

autotrophs are useful because

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

28

an autotroph ultimately gets its energy from the

sun

29

which molecules are produced by autotrophs during photosynthesis?

glucose and oxygen

30

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

autotrophs; oxygen; heterotrophs; carbon dioxide