Photosynthesis foldable activity Dont fold anything yet The
Photosynthesis foldable activity Don’t fold anything yet!
The Photosynthesis Equation • Write your name and period at the bottom on the lines provided. Next to this, we are going to write the photosynthesis equation. • To start the equation, think about what the plant takes in from the environment. . . 6 CO 2 + 6 H 2 O light
• Now, what are the products? Think about what heterotrophs must take in to survive… high-energy Glucose
• Now fold the top of your paper down so that the equation still shows, but you can see Photo-synthesis on the top. • What does PHOTO mean? – LIGHT
WHOooo? • WHO does photosynthesis? • In the pentagon: what do we call organisms that make their own food? • 3 Arrows from AUTOTROPHS: – We all know plants undergo photosynthesis, but what else? • some bacteria • algae
Sequence of events: • Light absorption • Light Dependent Reactions – Electron Transport Chain – Chemiosmosis • Calvin Cycle
Inside a Chloroplast • • • Thylakoid Grana Chlorophyll/pigments Photosystems Stroma
Light-Dependent Reactions • Where do they take place? – Thylakoid membranes of chloroplasts • What goes in (USES)? – H 2 0 – ADP – NADP+ • What comes out (PRODUCES)? – O 2 – ATP – NADPH
The Calvin Cycle (Light-Independent Reactions) • Where do they take place? – Stroma of chloroplasts • What goes in (USES)? – ATP – NADPH – CO 2 • What comes out (PRODUCES)? – Glucose – ADP – NADP+
Electron Carrier • What does that mean? • In photosynthesis, the electron carrier is: – NADP+ – accepts electrons with the H+ and becomes NADPH • Happens in e- transport chain (chemiosmosis)
Inside a Chloroplast HO CO 2 2 Light NADP+ ADP + P Light- dependent reactions Calvin cycle Chloroplast Sugars O 2 Copyright Pearson Prentice Hall
Factors affecting photosynthesis • 1: Temperature – The reactions of photosynthesis are made possible by enzymes that function best between 0°C and 35°C.
Factors affecting photosynthesis • 2: Light – High light intensity increases the rate of photosynthesis. After the light intensity reaches a certain level, however, the plant reaches its maximum rate of photosynthesis
Factors affecting photosynthesis • 3. Water – Because water is one of the raw materials in photosynthesis, a shortage of water can slow or even stop photosynthesis. • What special adaptations do plants that live in dry climates have?
close it and flip it over • On the back side of PHOTOsynthesis, draw the ATP molecule. – adenosine triphosphate (ATP). • ATP consists of adenine, a 5 -carbon sugar called ribose, and three phosphate groups. – How is the energy released? – What is ADP?
- Slides: 15