Sources of Energy
True or False?
All living things need food.
True
Do plants, animals, or both perform photosynthesis?
Plants
Do plants, animals, or both perform cellular respiration?
Both
Are chloroplasts found in animal cells, plant cells, or both?
Danielle notices plants in areas with less carbon dioxide grow slower. Danielle made a/an...
Observation
What are 2 things that food provides?
Energy and material
Do autotrophs, heterotrophs, or both perform photosynthesis.
Autotrophs.
Do autotrophs, heterotrophs, or both perform cellular respiration?
Both.
Are mitochondria found in animal cells, plant cells, or both?
Both
Danielle thinks less carbon dioxide will make plants grow slower, and wants to test this idea out. Danielle made a/an...
hypothesis
Talking about MATTER, why do molecules contain energy?
Energy is in the bonds between atoms (molecules have bonds).
What is the name of the sugar that photosynthesis produces?
Glucose
What is the name of the kind of energy that cellular respiration produces?
ATP
If a cell has chloroplasts in it, is this cell from an autotroph, heterotroph, or could it be from either one?
Autotroph.
Danielle takes one plant and puts it in a room with not very much carbon dioxide. She then takes one plant and puts in a different room that has lots of carbon dioxide.
Is this enough plants? Why or why not?
No, because she should do more trials just in case there is a flukey result.
Describe the difference between an autotroph and a heterotroph.
Autotroph makes its own food, heterotroph must eat other living things.
Will photosynthesis be able to happen if oxygen is not available?
Why or why not?
Yes, because oxygen is not one of the INGREDIENTS needed to do photosynthesis.
Will cellular respiration be able to happen if there is not oxygen available?
Why or why not?
No, because oxygen is one of the ingredients.
Name the organelle responsible for photosynthesis.
Name the organelle responsible for cellular respiration.
Photosynthesis: chloroplast
Cellular respiration: mitochondria
Danielle wanted to see how giving different amounts of carbon dioxide to plants affected their rate of photosynthesis.
What is the independent variable?
What is the dependent variable?
Independent: amount of carbon dioxide
Dependent: amount of photosynthesis it performs
Provide an example of a living thing that is an autotroph, and say why it is an autotroph.
Also provide an example of a heterotroph, and why it is a heterotroph.
Many answers.
What is the source of energy used to make photosynthesis happen?
What ingredients does it need?
What gets made during photosynthesis?
Energy: sunlight
Ingredients: CO2, water
Products: glucose, oxygen
What ingredients are needed for cellular respiration?
What gets made during cellular respiration?
Ingredients: glucose, oxygen
Products: CO2, water, ATP (energy)
This organelle needs CO2 in order to do its job.
1) What organelle is this?
2) What is the name of the process that this organelle does?
1) Chloroplast
2) Photosynthesis
Danielle wanted to see how giving different amounts of carbon dioxide to plants affected their rate of photosynthesis.
What is one molecule that Danielle could measure the amount of to see how much photosynthesis occurred.
Explain why.
Glucose or oxygen, since the more that gets made, the more photosynthesis occurred.
You could also say that if you know how much carbon dioxide or water there was to start with, then how much less there is now tells you how much was used up during photosynthesis.