Photosynthesis and cellular Respiration. – Unit 3 Photosynthesis – glucose is Produced in plants using CO2, sunlight, water and Chlorophyll.

The big picture – plants make Their own food (glucose) through Photosynthesis – this glucose Provides energy for ALL living Organisms – It must be converted To a usable form of energy(ATP) By cellular respiration.

Plants go through photo – Synthesis to make their Own food which is glucose C6H12O6 (ORGANIC)

Photosynthesis – produces The all important organic Compound glucose C6H12O6.

Autotrophic nutrition – Autotrophs are organisms That can make their own food Ex. = plants – photosynthesis. Heterotrophic nutrition – Heterotrophs must obtain Nutrients, ex. = us and all Animals.

Chloroplast – green structure Found only in plants, contains Chlorophyll, green pigment That absorbs the right wave- Lengths of light for photosyn.

Chloroplast – contains ???? What happens here???

Red and blue wavelengths of Light are the best and are Absorbed by the plant Chlorophyll for photosynthes Green and yellow are reflected Red and blue are good for u

Photosynthesis Formula ??? ____ + ____ - ______ + _____

Chemistry of photosynthesis H20 + CO2--C6H12O6 + O2 Water + carbon dioxide +light And chlorophyll  glucose + Oxygen. enzymes Light

In a leaf, most photosynthesis Occurs in the pallaside layer

Stomates or stoma are found On the underside of leaves, They are special openings That allow gases and water To be exchanged for photosyn

Stomates are controlled by Guard cells. Stomate is the Opening – sketch 1 Guard cell

Guard cell

The glucose from photosyn. Is passed through the food Chain and provides energy For all living things (organisms.

Cellular respiration is the Process by which glucose Is broken down and energy is Released in a usable form = ATP. Occurs in the mitochondria Of all cells.

Also called Aerobic cellular Respiration because it Uses Oxygen.

Cellular respiration gives Off carbon dioxide CO2, ATP (energy) and water Vapor. It requires – Glucose, Oxygen and Enzymes.

Respiration formula ____ + ____  ___+___+____

Respiration formula Enzymes O2 + C6H12O6 ATP +CO2 + H2O

Transport – involves absorb -tion through cell membrane And circulation to the cells. Cell Membrane – Fluid Mosaic Model – Cell mem. Is A double layer of lipids and Large protein molecules.

Cell membrane also contains RECEPTORS which receive Signals from other areas. Receptor cells are shape specific

Cell Membrane Lipid Protein

Diffusion = movement of a Substance from high to low Concentration – This happens Naturally, does not require Extra cell energy = passive Transport.

Osmosis = diffusion of water.

02 O2 O 2 O2 O2

Diffusion is how most Materials ( nutrients, gasses Water) enter and leave cells A VERY IMPORTANT Process that occurs in all Living things(organisms)

The size of the particles or Molecules determine if Something can diffuse Through a cell membrane.

Only small molecules such as Amino acids, simple sugars Can enter cells

Active transport – movement From an area of low Concentration to high, Requires extra cellular energy

Molecules can enter or leave A cell by diffusion or active Transport. The cell membran Controls and regulates all Passage in and out of a cell.

Please count total # leafs in your Project and put it on a sticky note Inside front cover – put projects On table under smart board.Right Hand side of table. Please dig out your notes

State diffusion lab – diffusion is Movement of a substance from Area of high concentration to Low. Happens naturally. Low to high is active transport Not natural – requires energy.

The size of the substance is the Most important factor to Determine if it can diffuse through The cell membrane – large particles Like starch can not.

Color changes If starch is present – Iodine Turns dark blue/black Glucose present – Benedicts solution turns Orange.

Cell membrane cytoplasm Cell wall

What will happen here based on Our definition of diffusion ?

How did we get salt to Enter the cells???