Homeroom Warm Up 2-2-15

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Homeroom Warm Up2-2-15

• What is the rock cycle? What are the driving
  forces or processes behind the rock cycle. Be
  sure to include the names of the 3 major types of
  rocks and the processes that lead to the
  formation of each type of rock.

2
Science Warm Up2-2-15

• Which of these is a waste material that is
  removed from the human body by the respiratory
  system?
• water
• oxygen
• C. sodium chloride
• D. carbon dioxide

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Academic Enrichment Warm Up

• The ______ system plays the key role in allowing
  organisms to have offspring and pass on their
  unique genetic information.
• A. nervous B.
  cardiovascular
• C. reproductive D. musculoskeletal
  

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Homework

• Page 85 in textbook
• Academic Enrichment
• P 166-173

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GLE

• GLE 0707.3.1 Distinguish between the basic
  features of photosynthesis and respiration.
• GLE 0707.3.2 Investigate the exchange of oxygen
  and carbon dioxide between living things and the
  environment.

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Photosynthesis

• Grade 7 Science

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What is photosynthesis?

• Process plants use to make their own food
• Some plants cells contain chlorophyll
• Chlorophyll (green color) makes photosynthesis
  possible
• It occurs in the chloroplast

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The chlorophyll absorbs the sunlight.
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The sunlight is combined with water, Carbon
Dioxide and nutrients from the soil.
CO2
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The chlorophyll processes the ingredients and
makes sugar (plant food) and oxygen.
6CO2 12H2O light energy   C6H12O6 6O2
Sugar Air
O2
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Equation for Photosynthesis

• 6CO2 6H2O light energy?  C6H12O6 6O2

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Plants and animals need each other to survive.
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Animals including humans make the CO2 (carbon
dioxide) plants need.They (the plants) make the
O2 (oxygen) and food we need.
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Cellular Respiration

• The process by which cells use oxygen to produce
  energy from food.
• It occurs inside the Mitochondria

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Equation

• C6H12 6O2 ? 6CO2 6H2O Energy

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Closure Question2-2-15

• The diagram below represents a gas exchange
  between organisms. What gas is released by
  animals during respiration and used by plants for
  photosynthesis?
• A. hydrogen
• B. oxygen
• C. carbon dioxide
• D. nitrous oxide

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Closure 2-1-15

• What part of a plant can perform photosynthesis?
• A. only the leaves
• B. only the stem
• C. only the roots
• D. any cell with chlorophyll