Chapter 4.1- Energy For Life

Question 0

Food

Answer 0

Consists of organic molecules that store energy in their chemical bonds
Gives organisms chemical energy that it needs

Question 1

Energy

Answer 1

The ability to do work
Needed to carry out life processes
Required to break down and build up molecules and to transport molecules across plasma membranes
Cannot be recycled

Question 2

Autotrophs

Answer 2

Organisms that make their own food
Use photosynthesis
Also called Producers- make food for not only themselves but others as well
Form basis of food chain

Question 3

Photosynthesis

Answer 3

Process that converts light energy to chemical energy and releases oxygen
Only plants, bacteria, and algae can do this
6CO2 + 6H2O + Light Energy → C6H12O6 + 6O2

Question 4

Hetotrophs

Answer 4

Living things that cannot make their own food
Get food from eating other organisms
Also called consumers
Eat either autotrophs or other Hetotrophs
Include animals, fungi, and many single celled organisms

Question 5

Energy molecules

Answer 5

Main energy molecules are ATP and Glucose

Also key elements in photosynthesis

Question 6

Glucose

Answer 6

Simple carbohydrate
C6 H12 O6
Stores energy in concentrated stable form
Carried in blood and taken up by cells
End product of photosynthesis
Contains more energy in smaller size than ATP
More stable than ATP
Good for storing and transporting Energy

Question 7

ATP

Answer 7

Adenosine Triphosphate
Energy carrying molecule that cells use for energy
Made in first half of photosynthesis, used in second
Releases energy when it gives up one of three phosphate groups and changes to adenosine diphosphate
Contains less energy is a larger package than Glucose
Less stable than Glucose
Good for using energy

Question 8

Cellular Respiration

Answer 8

The process in which glucose is broken down and ATP is made
All cells do this
Together with photosynthesis, makes energy and restores earths oxygen
C6H12O6 + 6O2 → 6CO2 + 6H2O + Chemical Energy (in ATP)