Cellular Respiration/Photosynthesis Note Packet

Heterotrophs and autotrophs go through the process of cellular respiration to

_______________________________________________________________________

Before autotrophs go through the process of cellular respiration they have to go

through the process of _____________________________________________________

________________________________________________________________________

The energy that is released during cellular respiration is “packaged” in the form of

_______________________________________________________________________

*During cellular respiration, glucose combines with oxygen to produce carbon dioxide and

water (and ATP). Write the chemical equation below:

*For heterotrophs (like us!) the ____________________ comes from the food we eat.

*The respiratory system carries

____________________ to the

circulatory system. The circulatory

system in turn, carries

_____________________ to every cell

in the human body.

*Oxygen is able to

__________________ into the cell

while carbon dioxide ______________

out of the cell.

*Once inside the cell, oxygen moves

into the _________________________

Cellular Respiration

Glycolysis -> First Step in cellular respiration

* Glycolysis takes place in the_____________________. During glycolysis, _____________

__________________________________________________________________________

* 4 ATP molecules are formed; however, glycolysis requires 2 ATP to break apart each

molecule of glucose. Therefore,_________________________________________________

__________________________________________________________________________

* ATP stands for_____________________________________.

* The bond linking the last phosphate group is a

______________________________.When the third

phosphate is removed and bonded to another compound,

__________________________________________________

_________________________________________________.

___________________________________, glycolysis leads to two other pathways; the

________________________________and the______________________________________.

-> this is an aerobic pathway.

Krebs Cycle & Electron Transport Chain

* The final two stages of cellular respiration take place in the________________________.

* During the Krebs cycle and the Electron Transport Chain,__________________________

__________________________________________________________________________.

Fermentation

* If oxygen is NOT present,____________________________________________________.

-> this is an anaerobic pathway

* No ATP is produced during fermentation; thus,___________________________________

__________________________________________________________________________

Alcoholic Fermentation -> produces ethyl alcohol and carbon dioxide

Examples __________________________________________________________

Lactic Acid Fermentation -> produces lactic acid and carbon dioxide

Examples __________________________________________________________

Aerobic ____________

Anaerobic ___________

*The Krebs cycle occurs in the

_______________________________________

*The electron transport chain occurs in the

_______________________________________

without

oxygen

with

oxygen

Glycolysis

Review of Cellular Respiration

True/False

1) Cellular respiration that is carried out without oxygen is aerobic. __________

2) Glucose serves as a reactant during cellular respiration. __________

3) Heterotrophs obtain glucose as a product of photosynthesis. ___________

4) During cellular respiration, energy is produced in the form of ATP. ___________

5) The electron transport chain occurs during aerobic respiration. ___________

6) Glycolysis takes place in the mitochondria. ___________

7) The process that breaks a glucose molecule in half is fermentation. ___________

8) During aerobic respiration, the majority of ATP is made in the mitochondria. __________

9) Anerobic respiration is more efficient than aerobic respiration at making ATP. __________

10) Yeast cells undergo fermentation. _________

Photosynthesis

Where does all of the energy needed to sustain life come from? _________________________

The arrows below indicate _________________________________________.

Autotrophs are ___________________________________________________________

________________________________________________________________________

Heterotrophs are _________________________________________________________

________________________________________________________________________

*The following equation summarizes the process of photosynthesis.

Carbon Dioxide + Water Glucose + Oxygen

Details of photosynthesis

* The process of photosynthesis begins _____________________________________________

____________________________________________________________________________.

* The most important photosynthetic pigment in plants is ________________________ : this

is what gives plants a green color.

During photosynthesis,

autotrophs (like plants)

use the sunlight to

produce their own food

(glucose).

Heterotrophs (like us!)

cannot make their own

food -> they must

consume plants and

other animals to obtain

glucose.

The sun gives off

energy in the form of

light and heat. Plants

are able to absorb

sunlight.

Sunlight

Summary of Photosynthesis

1.___________________________ inside the chloroplasts absorbs photons of light. (a photons

is__________________________________________________________).

2. The energy is used, along with carbon dioxide, to blow water apart.

3. ________________________is produced.

4. ________________________is released.

*More specifically, chlorophyll is found within the

_________________________________________.

* Chlorophyll is found in the ________________________ -> an organelle found only in plant cells.

Internal Leaf Structure

Mesophyll Cell

How does photosynthesis relate to cellular respiration?

*Photosynthesis and cellular respiration are______________________________________.

Photosynthesis uses the energy of sunlight to produce sugars.

The same sugars in turn serve as food (for both authotrophs and heterotrophs).

Cellular respiration __________________________________________________

__________________________________________________________________

________________________________________________during photosynthesis.

Review of Photosynthesis

True/False

1) Heterotrophs can produce their own food. __________

2) The chemical equation for photosynthesis is the opposite of the chemical equation for cellular respiration. __________

3) Photosynthesis used the energy from sunlight to produce water and carbon dioxide.

_________

4) Photosynthesis occurs in the mitochondria. __________

5) It makes sense to talk to your plants. __________