Bio 3 - D Flashcards
True or false, all organisms need energy to survive?
True, organisms need energy in order to do work and reproduce
What are the two ways used for organisms to get energy?
Photosynthesis and cellular respiration
Photosynthesis
This is what plants use, and is when they get energy from the sun (and also water and carbon dioxide from the air) to create carbohydrates (sugar molecules) to use later(they store it somewhere else)
Cellular respiration
This is when the carbohydrates that are produced through photosynthesis are broken down and used as energy for daily work
True or false, humans do photosynthesis
False, what we do is only cellular respiration. We cannot make carbohydrates but we can eat them from like some meat or some plant matter and then break them down for energy
What is the rays that plants use from the sun in order to get energy?
UV rays
What happens after photosynthesis
Because plants are using carbon dioxide, water, and sunlight in order to make glucose, they are releasing oxygen into the air
True or false, photosynthesis and cellular respiration is a cycle
True, when plants do photosynthesis, they release oxygen, and when plants and organisms do cellular respiration, they release carbon dioxide and water back into the environment (through poop or whatever) and so plants can again use the sunlight from the sun, as well as the water and carbon dioxide to make glucose or carbohydrates
What is the first law of thermodynamics?
Energy cannot be created or destroyed, it is changed from one form to another (ex: food is energy as we take it and we break it down and use that energy, and that food came from plants and trees which make it through the process of photosynthesis, or taking sunlight energy, as well as water and carbon dioxide, which are all sources of energy and “meal prepping” it in order to make glucose. So the food that we eat was energy in another form of sunlight, water, and carbon dioxide
Metabolism
this is all the chemical reactions that occur inside of cells in order to convert food into energy
metabolic pathway
a chain of Linked chemical reactions in an order to break down glucose into energy
catabolic
cutting down molecules, for example glucose in order to release and use that energy
anabolic
having smaller molecules and building them up in order to create a larger molecule (ex: glucose) that is used for energy
Note: for example, sunlight is used as energy to combine monomers together, such as carbon dioxide and water, and then that is used to create energy which is anabolism. Catabolism is breaking down those polymers in order to release that sunlight energy, and make that polymer into a bunch of simple monomers
I understand
Enzymes(catalysts)
These are protein molecules that speed up chemical reactions (ex: you have two original molecules, and you want to break apart it’s bonds and form new bonds in a new way, these molecules speed up that process)