input: OPTIONS:
- expression energy
- phase energy
- kinetic energy
- activation energy Now, answer this question: Answer the following question given this paragraph: Regardless of whether reactions are exothermic reactions or endothermic reactions , they all need energy to get started. This energy is called activation energy . Activation energy is like the push you need to start moving down a slide. The push gives you enough energy to start moving. Once you start, you keep moving without being pushed again. Activation energy is defined as the energy that must be overcome in order for a chemical reaction to occur, or the minimum energy required to start a chemical reaction. The concept of activation energy is illustrated in Figure below . Q: What do you call the energy that must be overcome in order for a chemical reaction to occur, or the minimum energy required to start a chemical reaction? A:
A:
output: activation energy

Answer the following question given this paragraph: 6O 2 + C 6 H 12 O 6 6CO 2 + 6H 2 O Photosynthesis produces oxygen as a byproduct, and respiration produces carbon dioxide as a byproduct. In nature, there is no such thing as waste. Every single atom of matter is conserved, recycling indefinitely. Substances change form or move from one type of molecule to another, but never disappear (Figure 5.18). CO2 is no more a form of waste produced by respiration than oxygen is a waste product of photosynthesis. Both are byproducts of reactions that move on to other reactions. Photosynthesis absorbs energy to build carbohydrates in chloroplasts, and aerobic cellular respiration releases energy by using oxygen to break down carbohydrates. Both organelles use electron transport chains to generate the energy necessary to drive other reactions. Photosynthesis and cellular respiration function in a biological cycle, allowing organisms to access life-sustaining energy that originates millions of miles away in a star. Q: Photosynthesis produces oxygen as a byproduct, and respiration produces what as a byproduct? A:

OPTIONS:
- carbon monoxide
- nitrogen
- ozone
- carbon dioxide

Answer: carbon dioxide

Problem: OPTIONS:
- biofuels
- contaminants
- chlorophyll
- biomass
Q: Answer the following question given this paragraph: Biomass is the material that comes from plants and animals that were recently living. Biomass can be burned directly. This happens when you burn a log in your fireplace. For as long as humans have had fire, people have used biomass for heating and cooking. Q: What is the organic material that comes from plants and animals that were recently living called? A:
Answer: biomass

Problem:OPTIONS:
- tumors
- neutrophils
- cancer
- lymphocytes

Answer the following question given this paragraph: Q: What is it in bone marrow transplants that may cause a graft versus host reaction? A:
****
A: lymphocytes

Answer the following question given this paragraph: An example of a lens is a hand lens, also called a magnifying glass. This type of lens makes objects look bigger than they really are. How do you think this happens?. Q: What is another term for a hand lens? A:
OPTIONS:
- projecting glass
- seeing glass
- traversing glass
- magnifying glass
magnifying glass

Answer the following question given this paragraph: Potential energy is not only associated with the location of matter, but also with the structure of matter. Even a spring on the ground has potential energy if it is compressed; so does a rubber band that is pulled taut. On a molecular level, the bonds that hold the atoms of molecules together exist in a particular structure that has potential energy. Remember that anabolic cellular pathways require energy to synthesize complex molecules from simpler ones and catabolic pathways release energy when complex molecules are broken down. The fact that energy can be released by the breakdown of certain chemical bonds implies that those bonds have potential energy. In fact, there is potential energy stored within the bonds of all the food molecules we eat, which is eventually harnessed for use. This is because these bonds can release energy when broken. The type of potential energy that exists within chemical bonds, and is released when those bonds are broken, is called chemical energy. Chemical energy is responsible for providing living cells with energy from food. The release of energy occurs when the molecular bonds within food molecules are broken. Q: Potential energy is not only associated with the location of matter, but also with the structure of matter. even a spring on the ground has potential energy if it is what? A:
OPTIONS:
- ignored
- watched
- coupled
- compressed

Answer:
compressed