SED 312 Exam 2

Glucose + 6 O2 yields...

6 CO2+ 6 H20 + ATP

Where is the energy originally stored in a cellular respiration reaction?

The potential energy of the glucose

How is food related to the reaction of cellular respiration?

Food provides molecules that have energy to make the ATP

Where is the stored potential energy in food?

In the system of chemical bonds

After burning a cheese doodle, how can you account for the loss of mass?

Carbon atoms in the starch molecule of the cheese doodle combined with oxygen atoms creating carbon dioxide

Van Helmont's experiment allows you to draw what conclusion?

The mass of the tree must come from matter other than soil

If leaves are placed in the light, they will test _____ for starch.

Positive

If leaves are placed in the dark, they will test ______ for starch.

Negative

Why are plants considered producers?

They convert light energy into a useable chemical potential energy

How do fat molecules leave the body resulting in weight loss?

CO2 is exhaled and H2O is excreted in urine or sweat

Where is the original source of ENERGY and where does it end up: Photosynthesis

Sunlight to Glucose

Where is the original source of ENERGY and where does it end up: Respiration

Glucose to ATP

What molecule takes carbon out of the ecosystem and where does it end up: Photosynthesis

starts in CO2 and ends up in glucose

What molecule takes carbon out of the ecosystem and where does it end up: Respiration

starts in glucose and ends up in CO2

How does burning any kind of organic matter increase the amount of CO2 in the atmosphere?

Any kind of organic matter that is burned releases CO2 as it is burning because all of these things contain glucose molecules and as they are burning, their molecules are breaking apart and escaping into the air to produce CO2 by combining with the O2 in the air.

How can planting more trees be a remedy for climate change?

Trees do photosynthesis in which they need CO2 to conduct. This means that the CO2 in the atmosphere is diminished the more trees that need to do photosynthesis.