Time for Prayer - PowerPoint PPT Presentation

1 / 20
About This Presentation
Title:

Time for Prayer

Description:

Time for Prayer Attendance Chapters 2.7-2.10 Carbohydrates are fuel for living machines. Macromolecules There are 4 types of macromolecules. They are carbohydrates ... – PowerPoint PPT presentation

Number of Views:71
Avg rating:3.0/5.0
Slides: 21
Provided by: Sheema2
Category:
Tags: cell | prayer | time

less

Transcript and Presenter's Notes

Title: Time for Prayer


1
Time for Prayer
  • Attendance

2
Macromolecules
  • There are 4 types of macromolecules.
  • They are
  • carbohydrates
  • lipids
  • proteins
  • nucleic acids

3
Carbohydrates
  • Contain mostly carbon, hydrogen, and oxygen.
  • Primary fuel for running all cellular machinery.
  • Form most of the structure of cells for all life.

4
Monosaccharide
  • Monosaccharides or simple sugars are the simplest
    carbohydrate.
  • Two common monosaccharides
  • are glucose and fructose.
  • -ose tells us that a substance is a carbohydrate.

5
Common Monosaccharides
  • Have between 3 to 6 Carbon atoms.
  • Glucose is found in sap and fruit of many plants.
  • Fructose is found in fruits, vegetables and
    honey.

6
Energy
  • Carbohydrates provide energy.
  • They have many carbon-hydrogen (CH) bonds.
  • As they break, more stable bonds between carbon
    and oxygen
  • form, releasing a lot of
  • energy that an
  • organism can use.

7
Comprehension Check 7
  • In groups of 2 or 3, answer these questions
  • 1. What are the 4 types of macromolecules?
  • 2. Why do we need carbohydrates?
  • 3. What elements do carbohydrates have?
  • 4. What is a monosaccharide?
  • 5. What are the two most common kinds of
    monosaccharides?
  • 6. Where is glucose found?
  • 7. Where is fructose found?
  • You have 20 minutes to answer these questions.

8
Glucose provides energy for the bodys cells.
  • 3 Paths
  • Fuel for cellular activity.
  • Stored temporarily as glycogen.
  • Converted/changed to fat.

9
Glucose is fuel for cellular activity.
  • Glucose enters a cell.
  • It goes through many chemical reactions.
  • Energy is released.
  • This energy fuels cellular activity.
  • Examples
  • Muscle contractions that help you to move.
  • Nerve activities that help you to think.

10
Glucose is stored temporarily as glycogen. (FOR A
SHORT TIME)
  • When there is too much glucose in the blood than
    is necessary to meet the bodys energy
  • 1. It is stored in your bodys muscles and liver.
  • 2. The stored glucose molecules are linked
    together to form glycogen.
  • 3. When energy is needed later, the glycogen is
    broken down to release glucose back into the
    blood.

11
Glucose is converted to FAT
  • Glucose in the blood can be converted into fat.
  • This is done to store glucose for a LONG TIME.

12
Carbo-loading
  • Athletes double or triple amount of glycogen
    stored in muscles and liver.
  • This allows athletes to increase the store of
    fuel needed for energy and delay being tired
    during an endurance event.
  • 6 or 7 days before competition
  • Eat very little carbohydrates. Exercise a lot!
  • 2 days before competition
  • Eat a lot of carbohydrates. Dont exercise a lot.
    Now, excess glucose is stored as glycogen.

13
Many complex carbohydrates are time-released
packets of energy.
  • When two simple sugars are bonded together, they
    form a disaccharide.
  • Ex. Sucrose (table sugar)
  • This is fructose glucose
  • When many simple sugars join together, they form
    a polysaccharide or a complex carbohydrate.
  • Ex Cellulose found in plant cell walls.

14
Starch
  • Consists of a hundred or more glucose molecules
    joined together.
  • It is a polysaccharide or complex carbohydrate.
  • Found in plants.
  • Primary source of energy in plants.

15
Where do we find starch?
  • barley
  • wheat
  • rye
  • corn-70 starch
  • rice-70 starch

16
Oatmeal versus Fruit
  • If I want to study for a long time, what is
    better
  • eat oatmeal or fruit?

17
Answer
  • Oatmeal
  • Why?
  • Because oatmeal is made of complex carbohydrates
    and fruit is made of simple sugars. The fruit
    will give you some energy for a short time but
    the oatmeal will give you energy for a longer
    time period.

18
Not all carbohydrates are digestible.
  • We cannot digest these carbohydrates
  • 1. Chitin
  • 2. Cellulose

19
The cellulose we need is fiber
  • The cellulose we need is fiber. Fiber comes from
    celery or lettuce leaves.
  • Fiber helps remove harmful products of digestion
    through our intestine. And allows quick passage
    of food through the intestine.
  • Fiber lowers the risk of colon cancer and other
    diseases.

20
Comprehension Questions 8
  • In groups of 2 or 3, do these questions. You have
    30 minutes.
  • How does glucose provide energy for the bodys
    cells?
  • What are 2 examples of glucose fueling cellular
    activity?
  • Where is glucose stored for a short time and how
    is it stored?
  • How is glucose stored for a long time?
  • What is carbo loading?
  • What is a disaccharide?
  • What is a polysaccharide?
  • What is starch?
  • Where do we find starch?
  • What should we eat when we study oatmeal or
    fruit?
  • What cellulose do we need? Why?
Write a Comment
User Comments (0)
About PowerShow.com