Photosynthesis Photosynthesis Photosynthesis Formula Game - - PDF document
Slide 1 / 44 Slide 2 / 44 7th Grade PSI Matter and Energy in Everyday Life www.njctl.org Slide 3 / 44 Slide 4 / 44 Table of Contents Click on the topic to go to that section Photosynthesis Photosynthesis Photosynthesis Formula Game
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1 Where does the energy for life come from?
Complete Lab assignment according to teacher directions. Check out this video about photosynthesis. Teacher Note
In addition to food, what do plants provide to us which we (and the fish in this picture) need?
Glucose is sugar, a complex carbohydrate containing carbon. The individual molecules of Carbon, Hydrogen and Oxygen are joined together to make this molecule.
In the last chapter, we learned about cells and organelles. At your table, think back and come up with a list of some cell characteristics and organelles which are specific to plants alone. Be ready to give an example to the class!
Photosynthesis occurs mainly in the leaves of plants and in the chloroplasts.
Step 1: Collection of raw materials (sunlight energy, water, carbon dioxide). Step 1 is called the light dependent reactions. Step 2: Processing of the raw materials to form glucose and
known as the light independent or dark reactions.
It is not really dark! It can happen anytime
not require light to work.
sunlight
The equation above contains 6 carbon molecules, 12 hydrogen molecules, and 18 molecules in both the reactants and products. They have just been regrouped into different compounds.
Human and other animals do not photosynthesize. Instead, our cells perform a process called Cellular Respiration This happens in the mitochondria and the cytoplasm.
In photosynthesis, plants take in water and carbon dioxide and produce glucose and oxygen.
In order for cellular respiration to
glucose (sugar), which is collected through food. The cells also need this oxygen, which is collected by lungs, gills, or
Glucose (food) Oxygen
H O H C O O
water Carbon Dioxide Energy
Our cells turn these reactants into water and carbon dioxide, which coincidentally is needed by photosynthetic organisms!
This equation has 18 molecules of oxygen, 12 molecules of hydrogen and 6 molecules of carbon on both sides of the equation. ATP, or adenosine triphosphate, is the source of power in the cell.
Photosynthesis
Plants Use: ________ and Water Plants Produce: _______ and oxygen Carbon Dioxide and _______ Animals Produce: _________ Cell _____________ ________ Cell _____________ Animals Use glucose and ________
7 What is the relationship between Photosynthesis
Photosynthesis Cellular Respiration