11/17 & 11/18 - 7th Grade Agenda

Learning Objective: Learn about RespirationCollect HW: Reading & Note Taking p.71 – 74 Brain Pop PhotosynthesisLab: Elodea PlantClass Reading: 118 - 127HW: Reading Guide Chap 4 Section 1 & 2

Reflection

• Prompt: What is respiration. What is the difference between photosynthesis and respiration? (Write in complete sentence)?

Chap 4 Photosynthesis• What is Photosynthesis?

Photosynthesis

• Photosynthesis: The process by which a cell captures the e________ in sunlight and uses it to make f______.

nergyood

Photosynthesis: 2 Stage Process

• Stage 1: Capture Sunlight (energy) through Chloroplasts

• Stage 2: Use captured water, energy and carbon dioxide to produce sugar and oxygen

Chloroplasts

• Chl________ pigments inside chloroplasts absorb su________ and convert it into energy

Chloroplasts

orophyll

nlight

Stomata

• C_________ D________ is absorbed through openings in the underside of the leaves called Stomata

arbonioxide

Close up of Stomata

Do plants produce carbon dioxide? (Yes or No)

• Can plants produce oxygen at night?

• How can plants create the required energy at night?

At night, plants breath in small amount of oxygen and

produce carbon dioxide

Autotrophs & Heterotrophs

• Which organisms in these photos are autotrophs?

• Which organisms in these photos are heterotrophs?

What is Respiration?

• What is respiration?

Respiration Demonstartion

1. Cup your hand and hold it over your mouth

2. Breath out

3. Rub your hands

What is Respiration?

• During pho______________ plants capture and save en_____ in the form of car_________ (sugars and starches)

tosynthesisergy

bohydrate

What is Respiration?

• After you e__, your body converts the carbohydrates into gl_______ (type of sugar)ucose

at

Respiration: 2 Stage Process

• Stage 1: Gl______ is broken down into smaller molecules

• Stage 2: Mit________ takes the ox______ and glucose and converts it into ca_____ dioxide, w______ & energy

ucose

ochondriaygen

rbonater

What is the relationship between Photosynthesis and

Respiration?• Photosynthesis and

respiration can be thought of as opposite processes

• Together these two process form a cycle that keeps the level of oxygen and carbon dioxide fairly constant

Fermentation provides en_______ from cells without

using ox_______ergy

ygen

Alcoholic Fermentation: Y_____is used to break down s______ and produce carbon dioxide (making br_____ and

be_____)

eastugar

eader

Lactic Acid Fermentation happens when you over work your

m_______ and your cells don’t get enough o_______

usclexygen

Microscope Lab