Cellular Respiration Remember Photosynthesis Why is photosynthesis Important

Cellular Respiration

Remember Photosynthesis? Why is photosynthesis Important to humans? ? CO 2 + H 2 O + Sun Light Carbon dioxide Gives you Water Carbohydrates + O 2 Sugar (glucose) Oxygen

Cellular Respiration is just the opposite of photosynthesis! C 6 H 12 O 6 + O 2 → ATP + CO 2 + H 2 O respiration CO 2 + H 2 O + light → C 6 H 12 O 6 + O 2 photosynthesis

#1 and #2 Cellular Respiration C 6 H 12 O 6 O 2 Sugar (glucose) Oxygen Reactants (what’s needed) ATP Energy CO 2 H 2 O Carbon dioxide Water Products (what’s produced)

#3 Which cellular process releases energy from sugar? Cellular respiration breaks down sugar to make energy (ATP). #4 What is glucose again? SUGAR!! (Carbohydrate) You eat food. The sugars in your food is used to make ATP energy. The more energy you need the oxygen you breath!!

#5 Where in the cell does cellular respiration happen? Mitochondria (Mitochondrion) of EUKARYOTIC cells.

#6 What does a mitochondria look like? Draw this picture in the box. (peanut shape with folded membranes)

7. Mitochondria are found in what type of cells? Eukaryotic Cells Animal Cells (Circle Shape) Plant Cells (Square/rectangle shape)

#8. What gas is taken in during cellular respiration? Oxygen(O 2) O 2 C 6 H 12 O 6 + O 2 Sugar (glucose) Oxygen goes in (think breathing) Carbon Dioxide goes out (think exhaling) O 2 Gives you Oxygen ATP + CO 2 + H 2 O Energy Carbon dioxide Water

#9. What gas is released during cellular respiration? Carbon Dioxide (CO 2) C 6 H 12 O 6 + O 2 Sugar (glucose) Oxygen goes in (think breathing) Carbon Dioxide goes out (think exhaling) CO 2 Gives you Oxygen ATP + CO 2 + H 2 O Energy Carbon dioxide Water

#10 Draw Cellular Respiration • Include the reactants (O 2 and glucose) and products (CO 2, H 20, and Energy)

#11 Does cellular respiration release or absorb energy? Cellular respiration releases energy from sugars/carbohydrates.

#12 What are the two types of respiration? There are two types of respiration: AEROBIC RESPIRATION ANAEROBIC RESPIRATION 1. With Oxygen (respiration) 2. Without Oxygen (fermentation) Lots of ATP is made! (there is a lot of energy) No more ATP is made (energy dwindles)

13. What type of respiration does not involve the intake of oxygen? NO OXYGEN= Anaerobic Respiration Feel the burn from lactic acid!

Exit Quiz 1. What is the difference between aerobic and anaerobic respiration? a. Aerobic uses oxygen. Anaerobic does not use oxygen. b. Anaerobic uses oxygen. Aerobic does not use oxygen.

14. What organisms release carbon dioxide? • Plants and animals release carbon dioxide. • (Both plants and animals do cellular respiration to make energy. ) CO 2

15. What type of respiration requires oxygen? OXYGEN= Aerobic Respiration Think aerobics!

Aerobic Anaerobic • Happens first n Happens after Anaerobic respiration • Occurs in the cytoplasm of the cell n Occurs in the mitochondria • Makes just a little ATP n Makes most of the ATP (36 out of the 38 ATPs made from each molecule of glucose) • Does not use molecular oxygen (O 2) n Must have oxygen present to occur

16. What is ATP? ATP ATP is a high energy molecule made during cellular respiration.

When We Exercise… • After short bursts of exercise, the body responds by supplying working muscles with oxygen • When oxygen is present, glucose can be completely broken down into carbon dioxide and water

Test Your Knowledge • Answer the questions that follow your notes. • Make sure to give thorough answers. • I want to hear your scientific thoughts!

Marine Environment Connection Algal Blooms • Video on “algal blooms” • What are dinoflagellates? Why are they thriving in the bay? How will they be harmful for the bay ecosystem? Watch and learn • http: //www. chesapeakebay. net/videos/clip/ bay_101_fish_kills Dinoflagellate

Marine Environment Connection Fish Kills and Cellular Respiration • Video on “fish kills” • How does algal bloom lead to fish kills? Watch and learn • http: //www. chesapeakebay. net/videos/clip/bay _101_fish_kills

Station 1 -What is wrong with this picture?

Station 2 -What is wrong with this picture? • Use the color coding to explain the low, medium and high states of algal bloom in the bay.

Station 3 -What is wrong with this picture? What caused these fish to die in the Bay?

Station 4 -What is wrong with this picture? • In August of 1983 the tidal freshwater portion of the Potomac turned bright green in color due to a Microcystis (? ) bloom and covered 20 miles between Piscataway Creek, MD and Quantico, VA.

Exit Quiz Prepare by studying the equations for photosynthesis and cellular respiration. 1. What are the reactants of photosynthesis? 2. What are the products of cellular respiration? 3. What gases are harmful to fish during algal blooms? 4. What organelle in the fish’s cell takes in oxygen to break down sugars into energy?

SOURCES • • • http: //pubs. usgs. gov/circ 1316/html/circ 1316 chap 11. html http: //www. chesapeakebay. net/contact http: //www. mwcog. org/environment/water/potomacestuary 1. asp

Extra Slides Below • Leg dip exercise/aerobic respiration

Elaborate: When We Exercise… Student Trial #1 : Leg Dips 1. Place one foot far in front of the other and dip your back knee to the ground. 2. Return to your standing position. 3. Repeat 5 times. 4. How does your leg feel?

Elaborate: When We Exercise… Student Trial #2 : Leg Dips 1. Place one foot far in front of the other and dip your back knee to the ground. 2. Return to your standing position. 3. Repeat 20 times. 4. How does your leg feel now?

Evaluate: When We Exercise… In Muscle Cells: During extraneous activities, the oxygen in the muscle tissue is decreased to an extent that aerobic respiration does not occur at a sufficient rate. Hence, there is a buildup of lactic acid and your muscles get tired (or have a burning feeling). WHAT IS THIS CALLED? ? This is called Anaerobic Respiration! Answer the critical thinking questions on your own! Use your notes and you colleagues to help you come up with the answers to these critical thinking questions.

Anaerobic Respiration refers to the breakdown of molecules in the absence of oxygen to produce energy It is also known as Fermentation

What organisms do respiration? • Don’t be fooled! • Plants, humans and animals do respiration!!!