Name:____________________________

Date:_____________________________

Assignment #:_________Block:________

Cellular Energy Study Guide

All cells and organisms need energy. Humans get this energy by eating food. Plants get their

energy from the sun. In this unit we explored the two processes that make usable energy for

all eukaryotic organisms.

Glucose

Sun

Energy

Photosynthesis

Chloroplasts

Carbon dioxide

CO2

Water

H2O

Light energy

Oxygen

O2

C6H12O6

Humans

Mitochondria

Two

Muscles

Lactic acid

Yeasts

Bubbles

Rise

Sunlight

Fermentation

Photosynthesis:

a. Plants are able to capture light energy from the SUN and change it into FOOD through a

process called PHOTOSYNTHESIS

b. The food that plants make supplies them with ENERGY and also becomes a source of

energy for the organisms that eat the plants.

c. During PHOTOSYNTHESIS plant cells use the energy in SUNLIGHT to make food called

GLUCOSE from carbon dioxide and WATER.

d. Photosynthesis takes place in the CHLOROPLASTS in plant cells.

e. The equation: fill one out with words and one with chemical symbols

CARBON DIOXIDE + WATER + SUNLIGHT GLUCOSE + OXYGEN

6 CO2 + 6H2O + LIGHT ENERGY C6H12O6 + 602

Cellular Respiration:

a. The food you eat has to be broken down so that the energy it contains can be converted

into a form your cells can use.

b. Most organisms, such as HUMANS use cellular respiration to obtain ENERGY from

food.

c. In the cells of eukaryotes, cellular respiration takes place in the MITOCHONDRIA

d. Equations for cellular respiration: fill one in with words and one in with chemical symbols

Fermentation:

a. When cells cannot get the OXYGEN they need to produce ATP by cellular respiration, the

process of FERMENTATION takes over.

b. There are TWO major types of fermentation.

c. The first type is in your MUSCLES. It produces LACTIC ACID which contributes to

muscle fatigue after strenuous activity.

d. The second type of fermentation occurs in certain types of bacteria and yeasts.

The gas produced by yeast cells in fermentation cause BUBBLES of CARBON

DIOXIDE to form in bread and make the bread RISE.

You also need to study the following:

The relationship between photosynthesis and the health

of the planet.

The interdependent relationship between photosynthe-

sis and cellular respiration.

GLUCOSE + OXYGEN CARBON DIOXIDE + WATER+ ATP

C6H12O6 + 602 6 CO2 + 6H2O + ATP