7.1 Cell Respiration Topic 7 Cell Respiration & Photosynthesis.
Table of Contents Photosynthesis Cellular Respiration Cell Division Cell Processes and Energy.
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Transcript of Table of Contents Photosynthesis Cellular Respiration Cell Division Cell Processes and Energy.
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Table of Contents
Photosynthesis
Cellular Respiration
Cell Division
Cell Processes and Energy
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Log: Feb.14th
Read and complete question on page 44 My
planet diary
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The Sun as an Energy Source
Nearly all living things obtain energy from the sun directly or indirectly through the process of photosynthesis.
See page 46
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Energy Processes
Producers
• Makes their own food• Autotrophs• All Plants
Consumers
• Heterotrophs• All Animals and Fungi
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First Stage of PhotosynthesisThe first stage of photosynthesis powers the “energy engine” of the living world.
Photosynthesis; How living organisms get energy from the sun
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Stage 1 Photosynthesis
Stage 1
Chlorophyll acts similar to solar cells and captures light energy
H2O is split
Oxygen is given off as waste
Hydrogen is used in stage 2
Stage 2
The second stage of photosynthesis makes food for a plant.CO2 enters the plant H and CO2 react
Produce C6H12O6
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PhotosynthesisProducing Food
The second stage of photosynthesis makes food for a plant. How can the information for Stage 1 and Stage 2 be completed?
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PhotosynthesisWhat is the process of photosynthesis?
Photosynthesis
Write the chemical formula for photosynthesis.
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Cellular Respiration Lesson 2
Cellular Respiration = the process by which cells obtain energy from glucose. (glucose = most common sugar in foods)
During cellular respiration, cells break down glucose and other molecules from food in the presence of oxygen which allows for energy to be released.
Organisms and cells need energy all the time so cellular respiration is continuous.
Cellular respirations is not the same as breathing respiration, but these 2 cycles do work together.
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Cellular Respiration Lesson 2Getting Energy
How does the hiker's energy and breathing rate change as she climbs?
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Cellular Respiration
Complete the concept map about cellular respiration.
Cellular Respiration
Write the chemical formula for cellular respiration.
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Cellular RespirationReleasing Energy
Cellular respiration takes place in two stages. What terms will complete the sentences?
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Log: Feb 28th
Summarize the Yeast lab.
What cellular process occurred?
What proved that this process was occurring?
What prevented Oxygen form being present?
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Opposite Processes
Producers carry out photosynthesis, but producers and consumers both carry out cellular respiration. Use the word bank to complete the blank boxes.
Cellular Respiration
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Connection Between Photosynthesis and Respiration
Photosynthesis
cells take in carbon dioxide and release oxygen.
Chloroplast
Respiration
cells use oxygen to break down glucose and release energy and carbon dioxide
Mitochondria
Click
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Section 2 Cell EnergyChapter 4
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Fermentation = an energy-releasing process that does not require oxygen
Lactic Acid Fermentation
- Muscle cells can break down glucose without oxygen but lactic acid is produced instead of the water & carbon dioxide, a small amount of energy is also released
Alcoholic Fermentation
- in yeast or single celled organisms
-produces: alcohol, carbon dioxide, and a small amount
of energy
- Carbon dioxide release makes the bubbles or air
holes in bread or bubbles in sparkling or carbonated
drinks
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Section 2 Cell Energy
Getting Energy from Food,
• When muscles can’t get the oxygen for cellular respiration, they use fermentation to get energy.
• Fermentation is the breakdown of food without the use of
oxygen. It produces a small amount of ATP
Chapter 4
Occurs Product
1st Type Animal Muscles (some fungi an bacteria) Causes muscle fatigue
Lactic Acid
2nd Type Bacteria and Yeast Causes holes in bread
CO2 and Alcohol
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FermentationA ball of bread dough mixed with yeast is left in a bowl at room temperature. As time passes, the dough increases in size.
Cellular Respiration
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Log: March 1st
Write the chemicals equations for photosynthesis and cellular respiration.
How are the two connected? Explain.
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Comparing Cell CyclesThe table below compares the length of different cell cycles.
Cell Division Lesson 3
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Log: March 2, 2011
True or False
1. The first stage of cellular respiration occurs in the cytoplasm.
2. In the first stage of respiration a great deal of energy is required from the sun.
3. ATP can be made from fermentation or cellular respiration.
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Function of the Cell cycle
The cell cycle allows cell to
1. Grow
2. Repair
3. Reproduce
Turn to Page 57
How does each picture represent cell division
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Cell Cycle: What happens?
1. The cell will grow
2. Prepare for cell division
3. Divide into two cell called “daughter cells”
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Cell Division
Interphase: Preparing to DivideThe changes in a cell during interphase prepare the cell for mitosis.
The cell is growing and making copies of
its DNA1. GrowingWhat organelles are produced to aid this process?2. Copying DNAWhat form is the DNA in?
3. Preparing for divisionWhat structures are made?
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Cell DivisionWhen one cell splits in half during cell division, the result is two new cells. Each of those two cells can divide into two more, and so on.
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Log Time
What are the 3 functions of cell division?
Write out the 6 vocab words and define for section 3
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Mitosis: ProphaseMitosis begins with prophase, which involves further changes to the cell.
Cell Division
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Nucleic Acid
• Long organic molecules consisting of C,O ,H and N.
• They carry instructions for cells
• One type of cell Nucleic Acid is DNA
• The shape of DNA is referred to as a double helix
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Section 3 The Cell Cycle
Mitosis and the Cell Cycle
• Mitosis has four phases:
1. prophase2. metaphase
3. anaphase4. telophase
Chapter 4
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Section 3 The Cell Cycle
Mitosis and the Cell Cycle, continued
• Cytokinesis is the division of cytoplasm.
• In animal cells and other eukaryotes that do not have cell walls, division of the cytoplasm begins at
the cell membrane.
• In plant cells and in other eukaryotes with cell walls, a cell plate forms and the cell splits into two cells.
Chapter 4
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Cell Division
The Cell CycleCells undergo an orderly sequence of events as they grow and divide. What are the missing parts of the stages?
Centriole pairs Spindle fiberCentromere
Chromatids
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Before a cell divides, it must make a copy of its DNA which is organized into structures called
chromosomes.
Each Human cell has 23 pairs of chromosomes
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Length of a Liver Cell CycleHuman liver cells generally reproduce less than once per year. At other times, they can complete one cell cycle in about 22 hours.
Cell Division
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Log: March 2011
What happens during telophase?
In what process/stage does the cell make a copy of DNA?
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Log: March 2011
What is Mitosis?
What are the two new cells called at the end of the cell cycle?