How did the lettuce get the food molecules that we then eat?
Lettuce grows in the ground and we eat its leaves.
Explain how lettuce gets its food molecules. Using words add the components and interactions you need to explain what is going on in the model below.
Make sure to include things we can't see with our own eyes but we know are there.
Add in other zoom-ins if you need them.
If needed, add a key to explain your representations.
Use your model from question 1 to answer numbers 2 & 3.
Required
2 points
2
Question 2
2.
The plant itself is a system with inputs and outputs. There are many sources that lead to food molecules being created. The sources that are matter is _______. The source that is energy is _______.
**Another word for source is input**
Required
1 point
1
Question 3
3.
Construct a scientific explanation for how it is possible that the inputs into the plant can enter into the plant and produce different outputs from the plant.
In your explanation, include how matter moves and energy flows in the plant system.
Part 2: A New Scenario
This is an actual headline from a newspaper: Living in a box: Scientist to spend 48 hours in an airtight container with 160 plants to keep him alive.
The scientist survived! And he set up an experiment where he collected data before and during the time he was spending the 48 hours in the container. Throughout the study, the scientist kept the lights on and measured carbon dioxide, oxygen, and humidity (water in the air). Here we will look at three sets of data from this experiment.
Required
1 point
1
Question 4
4.
Why was the scientist able to survive in an airtight (closed) space with plants?
Write a claim:
Required
3 points
3
Question 5
5.
Using evidence from the graphs above support your claim. Write in complete sentences to state your reasoning why the evidence you have about the movement of carbon atoms in the system supports your claim.
