8.1-8.3 Science

Question 0

Getting energy back

Answer 0

You pop off the third phosphate. By breaking this bond, you just released the energy. Have the energy can be used or stored in a different molecule.

Question 1

ATP stuff

Answer 1

There are three phosphates in a ATP molecule the one we care about is the third one. the third phosphate forms the bond to the ATP, a tiny biton of energy is stored in the bond. This can only work for short period of Time – energy must be used or stored better. ATP is formed when the third phosphate atom bonds with the molecule.

Question 2

How is energy stored long-term? Plants –

Answer 2

As starch or sugar. starch is a long-term storage that doesn’t want to attract critters, sugar is to attract seeds or get pollinated

Question 3

Energy stored long-term? Animals –

Answer 3

Body fat and glycogen. Body fat is the first choice for a storage molecule. Glycogen is a second choice

Question 4

Three major botanist of the past

Answer 4

1. Jan Van Helmont
2. Joseph Priestly
3. Jan Ingenhousz

Question 5

Jan Van Helmont

Answer 5

People assume that plants ate dirt to make their plant parts like leaves, veggies and flowers. Jan VH thought this couldn’t be true since the amount of dirt didn’t decrease year after year. In the early 1600s Jan VH’s experiment happened. Jan VH put a seedling in a pot measured the dirt and sealed it tightly. Five years later he measured the weight of the plant and dirt: 199 pounds of dirt left was 200 pounds before. 12oz used. The results: the dirt had lost 1 pound but the plant gained 200 pounds he assumed the weight came from water, he was wrong

Question 6

Joseph Priestly late 1700s

Answer 6

He would put a candle under glass and it went out. Mouse by itself and sealed jar equals dead mouse. Candle in jar and plant equals candle burns. Mouse and plant in jar equals mouse lives. Maybe the plant is producing something the keeps keeps candles burning and animals breathing… Oxygen. Unfortunately Priestley didn’t know what it was. It was oxygen and was named oxygen later

Question 7

Jan Ingenhousz mid-1700s

Answer 7

Read Priestley’s research and repeated it. Discovered that the plant only produce oxygen when it was exposed to sunlight.

Question 8

Where does photosynthesis occur where in the leaves

Answer 8

The chloroplasts