Photosynthesis, Cellular Respiration, and a little Fermentation

What does it take to grow a plant???

How do we grow a plant? But is that all????

Photosynthesis

Photosynthesis

Photosynthesis

Photosynthesis Sunlight (light Energy) Water H 2 O Carbon Dioxide CO 2

Photosynthesis Sunlight (Light Energy) Water H 2 O Carbon Dioxide CO 2 Glucose C 6 H 12 O 6 Oxygen O 2

Photosynthesis

Photosynthesis Sunlight (Light Energy) Water H 2 O Carbon Dioxide CO 2 Glucose C 6 H 12 O 6 Oxygen O 2

Photosynthesis Let’s write the chemical equation on the board!! Let’s write the chemical equation on the board!! What are the reactants, What are the products? What are the reactants, What are the products? What type of energy transformations are going on? What type of energy transformations are going on?

Based on the graph below, what color is this object: 1.Red 2.Orange 3.Yellow 4.Blue 5.Violet

First why do leaves change colors?? Chlorophyll B Chlorophyll A Xanthophyll Carotene

Below is the absorption spectrum for the spinach. Discuss with your partner the most useful/absorbed part of the visible light spectrum and the least useful/absorbed part of the spectrum.

Based on the graph, what color is this plant: 1.Green 2.Red 3.Violet

Based on the graph, what colors are best absorbed by this plant: 1.Green and orange 2.Red and violets 3.Violet and green 4. Green and reds

Energy Combustion Combustion

How does a candle work?

Cell Respiration Glucose C 6 H 12 O 6 Oxygen O 2 Carbon Dioxide CO 2 Water H 2 O Energy

Cell Respiration Glucose C 6 H 12 O 6 Oxygen O 2 Carbon Dioxide CO 2 Water H 2 O Energy

Cell Respiration Let’s draw the chemical formula on the board!! Let’s draw the chemical formula on the board!! What are the reactants, What are the products? What are the reactants, What are the products? What type of energy transformations are going on? What type of energy transformations are going on?

Are your cells respirating right now???

So how do you get glucose in your body? And what is it exactly?? And what is it exactly??

It’s a cycle in plant cells, Jennnnay

The process of cellular respiration is taking place in your cells right now!! You are currently taking in oxygen and burning sugars within the mitochondria to release chemical energy. You are currently taking in oxygen and burning sugars within the mitochondria to release chemical energy. This process is also known as Aerobic Respiration. Why? This process is also known as Aerobic Respiration. Why? –Because Oxygen is present which allows your cells to burn glucose into energy much more efficiently. –I am sure you have heard of Aerobics.

What would happen if your cells were deprived of oxygen?? Would they still be able to burn glucose to make energy?? YES!! YES!! Fermentation Fermentation –When might this occur? –Long distance runners often create an anaerobic environment for their cells What does anaerobic mean?? What does anaerobic mean?? –No Oxygen present –Not a very energy efficient process and a bad side effect is produced: Lactic Acid Lactic Acid

A different example of fermentation Breweries rely on this process: Breweries rely on this process: –Yeast cells need energy to survive, so they will breakdown sugars in anaerobic conditions and a byproduct is alcohol. –How do you know CO 2 is produced?

Based on the graph, what color is this plant: 1.Green 2.Red 3.Violet

Based on the graph, what colors are best absorbed by this plant: 1.Green and orange 2.Red and violets 3.Violet and green 4. Green and reds

Based on the graph below, which color light is least absorbed by plants for photosynthesis 1.Red 2.Yellow 3.Green 4.Orange 5.Violet

What is this graph showing you?? pH

A scientist wants to study photosynthesis in a newly discovered species. Which of these cell structures should the scientist study? 1.Vacuoles 2.Chloroplasts 3.Mitochondria 4.Ribosomes

Muscle cells require more energy than do most other cells. Which organelles would you expect to find in greater abundance in muscle cells than in most other cells? 1.Cilia 2.Mitochondria 3.Ribosomes 4.Chloroplasts

Which of these processes results in carbon dioxide production? 1.Osmosis 2.Respiration 3.Evaporation 4.Photosynthesis

Some organisms that live in the intestines of cows do not require oxygen to survive. Which of these best describes the process by which these organisms obtain energy? 1.Osmosis 2.Mitosis 3.Cellular respiration 4.Fermentation

Let’s fill in this chart with the molecules and then the energy transformations _________________________________ _____________________ _________________________________ _____________________