January 25

GLUCOSE

Today in class we started out by answering some questions in our notebook, while Mr. Finley checked our homework from last night. These are the questions:

Imagine that we just landed on a new planet. Scientists suggest that we start planting green plants as soon as possible.

1) Why would they suggest it?

2) What would we need to know about the planet before we wentwith this plan?

3) Could plants survive in an enviroment with no oxygen?

*Homework quality improved, keep up the good work :)

This is what our class disscusion came up with:

1) Scientists would suggest this so the plants could start photosynthesizing, so the humans there would get the oxygen-glucose that they don't need, so that we could breathe.

2) We would need to know if the planet had water, co2 and sunlight so the plants could perform photosynthesis. You would also need to know if the surface had fetile soil, the plants could grow.

3)Plants could live on a planet without oxygen, because they don't need it for photosynthesis. (the gas not water) But Mr. Finley says plants COULD NOT survive without oxygen.

When we looked back at our notes from last night, we realized cellular respiration is how we get energy. The glucose and oxygen forms a chemical reaction producing energy.

Mr. Finley built "glucose" out of a stick of expo markers. He asked us what we needed to break it down, and it is oxygen. The point of breaking it down is to help you power your cells, its energy. The form of energy is ATP. It is an element.

So back to the question: Plants need oxygen to break down glucose !!!

Another question: Do plants use glucose like we do? Yes they do because they make it.

We are different from plants because they make glucose, and we eat glucose, that we get from food.

To get most of our glucose, we should eat fruits and vegetables and pasta( or bread) because they are from wheat, which is a plant! DING DING DING (lightbulb pops up in your head)

* anyword that ends in "cose" is SUGAR

for cellular respiration we need: OXYGEN AND GLUCOSE

C6 H12 06 +02->C02+ Energy H20 In cellular respiration we end with the reversed result of Photosynthesis.

Also the month is coming to an end so don't forget to make your blog comments.

N.Z