Photosynthesis and Cellular Respiration

​ PHOTOSYNTHESIS AND
CellULAR Respiration

​
Learning Intentions:

• Today we will determine the formula of Photosynthesis and Cellular Respiration;

• Today we will identify the product of both Photosynthesis and Cellular Respiration and

• Today we will determine the relationship between Photosynthesis and Cellular Respiration.

Standard

• HS-LS1-5: Use a model to illustrate how photosynthesis transforms light energy into stored chemical energy.

• HS-LS2-4: Use mathematical representations to support claims for the cycling of matter and flow of energy among organisms in an ecosystem.

• HS-LS1-7: Use a model to illustrate that cellular respiration is a chemical process whereby the bonds of food molecules and oxygen molecules are broken and the bonds in new compounds are formed, resulting in a net transfer of energy.

PHOTOSYNTHESIS is the process whereby plants, algae, some bacteria, use the energy of the sun to synthesize organic compounds (sugars) from inorganic compounds (CO2 and water).

Photosynthesis is coined into two Greek words:

   PHOTO = produced by light 

SYNTHESIS = a whole made of parts put together.

Formula of Photosynthesis:



Photosynthesis occurs in Chloroplast.
The process of photosynthesis takes place in the chloroplasts, specifically using chlorophyll, the green pigment involved in photosynthesis.

Chlorophyll has the ability to trap the sun's energy, and use it to rearrange those carbon dioxide and water molecules into the glucose.

Multiple Choice

What do you call a process that a process that convert light energy to chemical energy?

• Cellular Respiration

• Glycolysis

• Photosynthesis

• Krebs Cycle

Multiple Choice

What are the product of Photosynthesis?

• Glucose

• Glucose and Carbon dioxide

• Glucose and Water

• Glucose and Oxygen

Multiple Choice

Which of the following differentiate Light Dependent Reaction from Light Independent Reaction?

• Light Dependent Reaction it absorbs light to produce ATP and NADPH and water is split to provide Hydrogen and electrons for the Calvin Cycle and Oxygen is produced while Light Independent Reaction uses ATP and NADPH from the first stage along with carbon dioxide to produce sugar in a form of glucose.

• Light Dependent Reaction it absorbs light to produce ATP and NADPH and water is in tack to provide Hydrogen and electrons for the Calvin Cycle and Oxygen is produced while Light Independent Reaction uses ATP and NADPH from the first stage to produce carbon dioxide and sugar in a form of glucose.

• Light Dependent Reaction uses ATP and NADPH from along with carbon dioxide to produce sugar in a form of glucose. while Light Independent Reaction it absorbs light to produce ATP and NADPH and water is split to provide Carbon dioxide, Hydrogen and electrons for the Calvin Cycle.

• Light Dependent Reaction uses ATP and NADPH along with carbon dioxide to produce sugar in a form of glucose. while Light Independent Reaction provide Hydrogen and electrons for the Calvin Cycle and Oxygen is produced

Two Stages in Photosynthesis:

 1. Light Dependent Reaction
-It occurs in Thylakoids. The Chlorophyll absorbs light to produce ATP and NADPH, which power the Calvin Cycle

Water is split to provide Hydrogen and electrons for the Calvin Cycle and Oxygen is produced

2. Light Independent Reaction.
-It happens in the stroma. It uses ATP and NADPH from Light Dependent Reaction, along with CO2, to produce sugars (glucose)

CELLULAR RESPIRATION
is the process where nutrients (glucose) are broken apart and ENERGY is released.

Formula of Cellular Respiration







Cellular Respiration

1. Aerobic Respiration: total breakdown of glucose with help of oxygen to produce ATP (energy)

It Occurs in cytoplasm and mitochondria of cells

THREE STAGES OF CELLULAR RESPIRATION

1. Glycolysis

• Occurs in the cytoplasm

• Splits glucose into 2 pyruvates (pyruvic acid) 

• Requires an input of 2 ATP 

• 4 ATP produced,  but net total is 2 ATP

• NADH produced to carry electrons and Hydrogens to ETC

THREE STAGES OF CELLULAR RESPIRATION

2. Krebs Cycle

• Occurs in mitochondrial matrix (fluid inside mitochondria)

• Pyruvates further broken down

• Produces 2 ATP

• In addition to 2 NADH produced between Glycolysis and Krebs Cycle, 6 NADH and 2 FADH2 are produced to carry electrons and Hydrogens to ETC

• CO2 released as waste product

THREE STAGES OF CELLULAR RESPIRATION

3. Electron Transport Chain

• Occurs in the inner mitochondrial membrane

  • Electrons transferred from NADH and FADH2 to electron carriers to create a proton gradient

  • Protons are used to power enzyme ATP Synthase, which adds phosphate groups to ADP to create ATP (approximately 36)

  • Oxygen is final acceptor of electrons. Oxygen combines 

    with electrons and Hydrogens to create Water.

  
  

  
  

Multiple Choice

Which of the following defines Cellular Respiration?

• Cellular Respiration is the breakdown of carbon dioxide and water with the help of oxygen to produce ATP.

• Cellular Respiration is the breakdown of glucose with the help of oxygen to produce ATP.

• Cellular Respiration is the breakdown of energy in the form of ATP with the help of oxygen to produce glucose.

• Cellular Respiration is the breakdown of energy in the form of ATP with the help of oxygen and water to produce glucose.

Multiple Choice

Where does Cellular Respiration occur?

• Nucleus

• Chloroplast

• Cytoplasm

• Mitochondria

How does Cell Respiration Work?

• Cell capture a lot of energy that is released from the glucose chemical bond.

• the captured energy is used to form ATP.

• ATP stands as Adenosine triphosphate

• ATP is stored chemical energy.

• The energy is stored in the bonds between the three phoisphate

  
  

Multiple Choice

Cellular Respiration works by capturing a lot of energy that is released from the glucose chemical bond. The captured energy is used to form ATP. What does ATP stands for?

• Adenosine triphosphate

• Adenosin triphosphate

• Adenosine triposphate

• Adenosine triphospate

How do Photosynthesis and Cellular Respiration work together?

• Photosynthesis removes carbon dioxide from the environment and respiration puts it back.

• Photosynthesis releases oxygen in the environment and Respiration use that oxygen to release energy from food.

• Photosynthesis and Cellular Respiration work together to keep the balance in the environment between carbon dioxide and oxygen.

• They work together in a cycle.

  
  

Open Ended

How do Photosynthesis and Cellular Respiration work together?

SUMMARY

• The chemical equation of Photosynthesis and Cellular Respiration are opposite.

• Photosynthesis needs energy, carbon dioxide and water and it produces oxygen and glucose.

• Photosynthesis occurs in chloroplast. The first stage happens in thylakoids and requires light to produce ATP and NADPH.

• The second stage needs the ATP and NADPH from the first stage and it occurs in the stroma of the chloroplast.

• Cellular Respiration needs glucose and oxygen producing carbon dioxide, water and energy.

• Cellular Respiration happens at all times of the day.

• Cellular Respiration performs in all types of cells.