Embedded Files
Introduction to Chapter 7
Introduction to Chapter 7
As we go through this chapter, we will use these slides to record information of what we know and what we want to know, and what we have learned.
Read page 116 of the textbook.
Is there anything new we can add to the chart?
Vocabulary
Vocabulary
Photosynthesis - the process by which plants use sunlight, water, and carbon dioxide to create oxygen and energy in the form of sugar.
metabolism - the chemical processes that occur within a living organism in order to maintain life.
organelles - any of a number of organized or specialized structures within a living cell
Example: mitochondria, cell membrane, lysosome
Using Glucose for Energy
Using Glucose for Energy
Life could not exist without plants because all energy that fuels life comes from the Sun.
Green plants contain chlorophyll that transforms solar energy into chemical energy through photosynthesis. Organisms that do not capture solar energy, eat plants or other animals that eat plants in order to get the energy.
Most living things transform energy stored into energy-rich foods through cellular respiration:
Cellular Respiration Process:
Oxygen and glucose are combined to yield carbon dioxide and water.
The chemical energy stored in glucose molecules is transformed into another form of chemical energy call adenosine triphosphate (ATP).
This energy is used for metabolism.
Some of the stored energy is transformed into other high-energy compounds. This process is not 100% efficient though as approximately 60% of the energy is released as thermal energy.
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