Unit 2 (Matter & Energy) Flashcards
What are the 2 reactants in cellular respiration?
glucose and oxygen
Besides energy (in the form of ATP) what are the products of cellular respiration?
carbon dioxide and water
Where does cellular respiration take place?
In mitochondria
The process of making carbon containing molecules using light energy is called…
Photosynthesis
Where does photosynthesis take place?
chloroplasts
What are the reactants in photosynthesis?
Carbon dioxide and water (along with sunlight)
What are the products of photosynthesis?
Oxygen and glucose molecules
All the chemical activities and changes that take place in an organism for its growth and development is called…
Metabolism
or Metabolic Processes
All matter contains energy. (True or False)
TRUE!!!
ALL MATTER CONTAINS ENERGY!!!
What are the basic building blocks of matter?
Atoms
What holds atoms together to form molecules?
Chemical bonds
Type of chemical reaction that releases heat.
Exothermic Reaction
Exo–goes out
thermic–heat
What are the molecules present at the BEGINNING of a reaction called?
reactants
Chemical reactions that absorb heat from their surroundings are called…
Endothermic
Endo–in (brings in)
thermic (heat)
What is another name for “stored energy?”
Potential energy
Active energy or “energy of motion” is called…
Kinetic energy
What is the principle of “conservation of energy?”
Energy is not created or destroyed - only changed in form.
What substances help chemical reactions take place by reducing the amount of energy it takes to start them?
Enzymes
The amount of energy required to raise the temperature of 1g of water 1 degree Celsius
a calorie
1000 calories
1 kilocalorie
or 1 Calorie (note the capital “C”)
Process by which your cells release energy from the food that you eat (glucose) and the oxygen that you breathe in…
cellular respiration
The chemical reaction diagramed below is called…
Cellular Resperation
The substance needed (@ #1) to release energy from glucose is called…
Oxygen
The two products (#’s 2 & 3) of cellular resperation are
Water & Carbon Dioxide
The molecule (#4 below) that is released by the process of cellular resperation is called…
ATP
Adenosine Triphosphate
The diagram below is the cellular process of …
Photosynthesis
During photosynthesis, what is absorbed by the roots of plants? (A on the diagram below)
- Water
Letter (B) below, the location in the plant where photosynthesis takes place is called the…
- Chloroplast
What is given off (C) as a by-product of photosynthesis?
- Oxygen
The equation below shows the chemical reaction for what process?
Cellular Resperation
What process is shown by the chemical reaction below?
Photosynthesis
