b2 topic 3: energy flow internal assessment. animal and plant cells draw a labelled diagram of both...
TRANSCRIPT
![Page 1: B2 Topic 3: Energy Flow Internal Assessment. Animal and Plant Cells Draw a labelled diagram of both a plant and animal cell into your exercise books –What](https://reader036.vdocuments.net/reader036/viewer/2022081515/56649ee75503460f94bf8c65/html5/thumbnails/1.jpg)
B2 Topic 3: Energy Flow
Internal Assessment
![Page 2: B2 Topic 3: Energy Flow Internal Assessment. Animal and Plant Cells Draw a labelled diagram of both a plant and animal cell into your exercise books –What](https://reader036.vdocuments.net/reader036/viewer/2022081515/56649ee75503460f94bf8c65/html5/thumbnails/2.jpg)
Animal and Plant Cells
• Draw a labelled diagram of both a plant and animal cell into your exercise books
– What is found inside a plant cell but not inside an animal cell?
– What do each of your labelled parts do in the cell?
![Page 3: B2 Topic 3: Energy Flow Internal Assessment. Animal and Plant Cells Draw a labelled diagram of both a plant and animal cell into your exercise books –What](https://reader036.vdocuments.net/reader036/viewer/2022081515/56649ee75503460f94bf8c65/html5/thumbnails/3.jpg)
![Page 5: B2 Topic 3: Energy Flow Internal Assessment. Animal and Plant Cells Draw a labelled diagram of both a plant and animal cell into your exercise books –What](https://reader036.vdocuments.net/reader036/viewer/2022081515/56649ee75503460f94bf8c65/html5/thumbnails/5.jpg)
• Cell membrane
• Cytoplasm
• Nucleus
• Cell wall
• Chloroplast
• Vacuole
• Contains chromosomes and controls the actions of the cell
• Controls what goes in and out of the cell
• Where photosynthesis occurs (where food is made)
• Contains cell sap• Contains all the organelles
and site of chemical reactions
• Supports the plant cell (gives it its shape)
![Page 6: B2 Topic 3: Energy Flow Internal Assessment. Animal and Plant Cells Draw a labelled diagram of both a plant and animal cell into your exercise books –What](https://reader036.vdocuments.net/reader036/viewer/2022081515/56649ee75503460f94bf8c65/html5/thumbnails/6.jpg)
• Complete the provided handout (B2.3 1c)
![Page 7: B2 Topic 3: Energy Flow Internal Assessment. Animal and Plant Cells Draw a labelled diagram of both a plant and animal cell into your exercise books –What](https://reader036.vdocuments.net/reader036/viewer/2022081515/56649ee75503460f94bf8c65/html5/thumbnails/7.jpg)
Parts of a Plant
Which part of the plant:• is the site of
photosynthesis?• absorbs water from
the ground?
• Is there any part of a plant that could be missing from this diagram?
![Page 8: B2 Topic 3: Energy Flow Internal Assessment. Animal and Plant Cells Draw a labelled diagram of both a plant and animal cell into your exercise books –What](https://reader036.vdocuments.net/reader036/viewer/2022081515/56649ee75503460f94bf8c65/html5/thumbnails/8.jpg)
• Make a list of factors that could affect the production of fruit on a plant. For example, on an orange plantation why do some trees produce more fruit than others?
• lack of sunlight
• soil lacking minerals
• diseases
• eaten by herbivores
• weather conditions (e.g. drought)
![Page 9: B2 Topic 3: Energy Flow Internal Assessment. Animal and Plant Cells Draw a labelled diagram of both a plant and animal cell into your exercise books –What](https://reader036.vdocuments.net/reader036/viewer/2022081515/56649ee75503460f94bf8c65/html5/thumbnails/9.jpg)
Recall Photosynthesis
• A plant converts carbon dioxide from the atmosphere and water from the ground into oxygen and glucose
• Write this out as a word equation• What role does the glucose play?
– An energy source• Used for growth / repair• Used to grow fruit
– Stored as starch
![Page 10: B2 Topic 3: Energy Flow Internal Assessment. Animal and Plant Cells Draw a labelled diagram of both a plant and animal cell into your exercise books –What](https://reader036.vdocuments.net/reader036/viewer/2022081515/56649ee75503460f94bf8c65/html5/thumbnails/10.jpg)
Limiting Factors of Photosynthesis
• Since photosynthesis needs the raw materials carbon dioxide, temperature, and light energy, it is clearly going to be affected by their availability. They become limiting factors
– the amount of photosynthesis that takes place is determined by whichever of these is in the shortest supply
![Page 11: B2 Topic 3: Energy Flow Internal Assessment. Animal and Plant Cells Draw a labelled diagram of both a plant and animal cell into your exercise books –What](https://reader036.vdocuments.net/reader036/viewer/2022081515/56649ee75503460f94bf8c65/html5/thumbnails/11.jpg)
![Page 12: B2 Topic 3: Energy Flow Internal Assessment. Animal and Plant Cells Draw a labelled diagram of both a plant and animal cell into your exercise books –What](https://reader036.vdocuments.net/reader036/viewer/2022081515/56649ee75503460f94bf8c65/html5/thumbnails/12.jpg)
![Page 13: B2 Topic 3: Energy Flow Internal Assessment. Animal and Plant Cells Draw a labelled diagram of both a plant and animal cell into your exercise books –What](https://reader036.vdocuments.net/reader036/viewer/2022081515/56649ee75503460f94bf8c65/html5/thumbnails/13.jpg)
![Page 14: B2 Topic 3: Energy Flow Internal Assessment. Animal and Plant Cells Draw a labelled diagram of both a plant and animal cell into your exercise books –What](https://reader036.vdocuments.net/reader036/viewer/2022081515/56649ee75503460f94bf8c65/html5/thumbnails/14.jpg)
![Page 15: B2 Topic 3: Energy Flow Internal Assessment. Animal and Plant Cells Draw a labelled diagram of both a plant and animal cell into your exercise books –What](https://reader036.vdocuments.net/reader036/viewer/2022081515/56649ee75503460f94bf8c65/html5/thumbnails/15.jpg)
As the light level is raised, the rate of photosynthesis increases steadily to a certain point. Beyond that, it won’t make a difference because then it’ll either e the temperature or carbon dioxide level which is the limiting factor.
The amount of carbon dioxide will only increase the rate of photosynthesis up to a point
The rate of photosynthesis is dependent on enzymes which have to be the right temperature. Above 40°C the enzymes become denatured.
![Page 16: B2 Topic 3: Energy Flow Internal Assessment. Animal and Plant Cells Draw a labelled diagram of both a plant and animal cell into your exercise books –What](https://reader036.vdocuments.net/reader036/viewer/2022081515/56649ee75503460f94bf8c65/html5/thumbnails/16.jpg)
Activity
1. In Biology for You; Page 206 Q2
2. Complete the provided handout (B2.3 4b)
![Page 17: B2 Topic 3: Energy Flow Internal Assessment. Animal and Plant Cells Draw a labelled diagram of both a plant and animal cell into your exercise books –What](https://reader036.vdocuments.net/reader036/viewer/2022081515/56649ee75503460f94bf8c65/html5/thumbnails/17.jpg)
Fertilisers
• In Biology for You; Page 203
– Make a table of the advantages and disadvantages of natural and chemical fertilisers
• In Biology for You; Page 330
– Summarize the problems that can occur if either too much fertiliser is used or if the fertiliser is added before a period of heavy rain
![Page 18: B2 Topic 3: Energy Flow Internal Assessment. Animal and Plant Cells Draw a labelled diagram of both a plant and animal cell into your exercise books –What](https://reader036.vdocuments.net/reader036/viewer/2022081515/56649ee75503460f94bf8c65/html5/thumbnails/18.jpg)
Farming over the Centuries…
• A hundred years ago there were many farms internationally however their numbers have been declining in the past 20 years
– Why is this?
– How have farming methods changed? In other words, what procedures are commonly used in contemporary farming?
![Page 19: B2 Topic 3: Energy Flow Internal Assessment. Animal and Plant Cells Draw a labelled diagram of both a plant and animal cell into your exercise books –What](https://reader036.vdocuments.net/reader036/viewer/2022081515/56649ee75503460f94bf8c65/html5/thumbnails/19.jpg)
Primary vs. Secondary Data Sources
Primary Data Sources• something that originates
from first-hand knowledge of the subject referenced in the data
(collected by the researcher themselves)– Interviews,
experimental data etc.
Secondary Data Sources• collected by others to be
"re-used" by the researcher – Internet sites,
newspapers, published statistics etc.
Complete the provided EXAMPRO Questions