AIM SWBAT explain the differences between conventional farming

AIM: SWBAT explain the differences between conventional farming and organic farming techniques Please Do Now: 1) What is a yield (in terms of farming)? 2) What are the 4 things we discussed that decrease farmer’s yields?

Agenda �Do Now �Finish Food Inc. �Conventional vs. Organic Farming �Exam questions we MUST go over

What would you buy? Conventional Organic �Bananas: $0. 89/lb �Apples: $1. 49/lb �Peanut Butter: $3. 99/32 oz �Cocco Puffs: $4. 99/box �Chips: $1. 99/ 32 oz �Aunt Jemima Maple Syrup: $5. 99/20 oz �Iceberg Lettuce: $1. 59/head �Eggs: $2. 99/dozen �Bananas: $3. 00/lb �Apples: $3. 49/lb �Peanut Butter: $9. 99/20 oz �Organic Cereal: $11. 99/box �Chips: $5. 99/32 oz �Real Maple Syrup: $13. 99/20 oz �Baby Spinach: $5. 99/bag �Eggs: $5. 99 dozen

Remember �We are comparing organic farming and conventional farming as black and white different styles, but real farming can (and does) take place on a continuum between these two extremes

Notes for today �I would setup up your notes like this (there will be a slide for each box): �Use a whole page Conventional Pests Weeds Drought Nutrients Organic

Water Management: Conventional �Irrigate �Lots of runoff (wasted water) �Sometimes center pivot sprinklers �Inefficient use of water

Water Management: Organic �Irrigate �Use drought tolerant varieties �Sometimes drip irrigation �More efficient �Slower growth of crops �Lots of maintenance

Pest Management: Conventional �Usually synthetic chemical pesticides that kill bugs �Pesticides end up in water and on food �Bad for the person spraying them, the consumer if they eat them, and the environment

Pest Management: Organic �Crop rotation �Not monocultures �Naturally derived pesticides �Biological Controls (release predators of the bugs attacking crops) �Lots of work, lots of money

Weed Management: Conventional �Spraying of synthetic herbicides to kill weeds �“Roundup Ready” GE crops �Herbicides end up in water, food, and environment �Bad for the person spraying them, the consumer if they eat them, and the environment

Weed Management: Organic �Weed by hand �Massive man hours and cost to do this �“cover crops” �Just live with the lower yields weeds result in

Nutrient Limitation: Conventional �Chemical Fertilizers, made with fossil fuels �Tons of nutrients are made this way �Released all at once on to the fields, the crops only get some of them �The rest run off as pollution

Nutrient Limitation: Organic �Organic Fertilizers (manure, compost) �Crop rotation �Lots more work, less nutrients for the plants �Release nutrients to the plant slowly and steadily

Summarize �Organic food is more expensive than conventional food. This is mostly because _________________.

Summarize �Organic food is more expensive than conventional food. This is mostly because growing food organically requires a lot more work.

�What is the plant growth hormone called? �Estrogen �Testosterone �Auxin �Glucose

�What is the plant growth hormone called? �Estrogen �Testosterone �Auxin �Glucose

�In plants, what are flowers used for? �To photosynthesize �To reproduce sexually �To store energy �To reproduce asexually

�In plants, what are flowers used for? �To photosynthesize �To reproduce sexually �To store energy �To reproduce asexually

�At the cellular level what is the cell wall responsible for in plants? �Performing photosynthesis �Generating ATP �Keeping moisture inside the cell �Keeping the cell rigid

�At the cellular level what is the cell wall responsible for in plants? �Performing photosynthesis �Generating ATP �Keeping moisture inside the cell �Keeping the cell rigid

�When salt water from the ocean is blown inland during a hurricane, it often kills many of the trees in the area. What force does the salt disrupt that affects the health of the plant? �Cohesion �Osmosis �Photosynthesis �Infection

�When salt water from the ocean is blown inland during a hurricane, it often kills many of the trees in the area. What force does the salt disrupt that affects the health of the plant? �Cohesion �Osmosis �Photosynthesis �Infection

�What is the most important molecules that enters the leaf via the stomata? �Water �Glucose �Carbon dioxide �ATP

�What is the most important molecules that enters the leaf via the stomata? �Water �Glucose �Carbon dioxide �ATP

�Guard Cells maintain the balance between �Sunlight captured and water uptake �Carbon dioxide uptake and water uptake �Oxygen uptake and water loss �Carbon dioxide uptake and water loss

�Guard Cells maintain the balance between �Sunlight captured and water uptake �Carbon dioxide uptake and water uptake �Oxygen uptake and water loss �Carbon dioxide uptake and water loss

�The primary cell wall of all plants is made up mostly of fibers of what mocule? �ATP �Cellulose �Chlorophyll �Pectin

�The primary cell wall of all plants is made up mostly of fibers of what mocule? �ATP �Cellulose �Chlorophyll �Pectin

�If you were to add extra carbon dioxide to a plant’s environment, what effect would this have on photosynthesis? �The amount of sugars produced would increase �The amount of sugar produced would decrease �The amount of water produced would increase �The amount of glucose used would decrease

�If you were to add extra carbon dioxide to a plant’s environment, what effect would this have on photosynthesis? �The amount of sugars produced would increase �The amount of sugar produced would decrease �The amount of water produced would increase �The amount of glucose used would decrease

�In what layer of the leaf does the majority of photosynthesis take place? �The palisade mesophyll �The upper epidermis �The cuticle �The spongy mesophyll

�In what layer of the leaf does the majority of photosynthesis take place? �The palisade mesophyll �The upper epidermis �The cuticle �The spongy mesophyll

�What is the function of the endosperm in plant seeds? �To grow into the leaves �To store nutrients and energy �To store genetic information �To protect the seed

�What is the function of the endosperm in plant seeds? �To grow into the leaves �To store nutrients and energy �To store genetic information �To protect the seed

�What role does fruit play in seed dispersal? �To protect the seed �To provide water for the seed upon germination �To ensure the seed gets eaten by an animal that will disperse it �To shade the seed from the sun before it germinates

�What role does fruit play in seed dispersal? �To protect the seed �To provide water for the seed upon germination �To ensure the seed gets eaten by an animal that will disperse it �To shade the seed from the sun before it germinates

�What is the most important function of leaves in plants?

�What is the most important function of leaves in plants? To perform photosynthesis

�Explain how the two halves of photosynthesis, the light dependent reactions and the light independent reactions (AKA the Calvin Cycle), are tied together

�Explain how the two halves of photosynthesis, the light dependent reactions and the light independent reactions (AKA the Calvin Cycle), are tied together �The light dependent reactions produce ATP and NADPH, which powers the Calvin cycle.

Venn Diagram Organic Separate sheet of paper please! Conventional