1. What do you eat to get energy? 2. What type of biological molecule has the longest lasting energy? 3. What type of biological molecule has the shortest lasting energy?

1. What do you eat to get energy? Food (carbohydrates, proteins and lipids) 2. What type of biological molecule has the longest lasting energy? Lipids 3. What type of biological molecule has the shortest lasting energy? Carbohydrates

 What is metabolism?

 Organisms need to get energy from the environment to survive.  Metabolism is how organisms get energy, use energy and dispose of waste by- products.

 I can explain how energy gets from the sun into my cells

 Energy is the ability to do work.  Living thing need to do a lot of work to live.  Breathing  Eating  Sending nerve impulses to your brain  All living things need energy to live.

 There are two types of energy: 1. Stored Energy 2. Released Energy

 Stored energy is called Potential Energy  What does “potential” mean?  Why does a living thing need potential energy?

 Stored energy is called Potential Energy  What does “potential” mean? Something’s about to happen  Why does a living thing need potential energy?

 Released Energy is Kinetic Energy  What does “kinetic” mean?  Why does a living thing need kinetic energy?

 Released Energy is Kinetic Energy  What does “kinetic” mean? Changing active, or moving  Why does a living thing need kinetic energy?

 Potential energy is stored in matter.  Matter is anything that has space and volume. ▪ Is water (H2O) matter? ▪ Is carbon (C) matter? ▪ Is nitrogen (N) is matter?  Why is 96% of your body made up of these four elements (C, H, O, N)?

 Potential energy is stored in matter.  Matter is anything that has space and volume. ▪ Is water (H2O) matter? ▪ Is carbon (C) matter? ▪ Is nitrogen (N) is matter?  Why is 96% of your body made up of these four elements (C, H, O, N)? Yes

 96% of your body is made up of these four elements (C, H, O, and N) because they make up the carbohydrates, proteins and lipids that store potential energy in your body.  Matter is used to transfer energy between living things.

How do living things get and use energy?

 All energy on Earth comes from the sun

 Autotrophs store energy from the sun in matter in a process called photosynthesis.  Autotrophs are also called producers.

 Heterotrophsget their energy by eating autotrophs.  Heterotrophs are also called consumers.

 Both autotrophs and heterotrophsrelease the potential energy stored in matter by cell respiration.

CO2O2 = Storing energy = Releasing energy

Energy from the sun is captured by chloroplasts Mitochondria change the energy made by the chloroplasts into fuel for the grass to grow. The bunny eats the grass for energy