Answer the following question given this paragraph: Enzymes are extremely efficient in speeding up reactions. They can catalyze up to several million reactions per second. As a result, the difference in rates of biochemical reactions with and without enzymes may be enormous. A typical biochemical reaction might take hours or even days to occur under normal cellular conditions without an enzyme, but less than a second with an enzyme. Q: Enzymes in cellular reactions work to do what to the reaction? Choices: - increase yield - decrease heat - slow it down - speed it up A:
speed it up
Answer the following question given this paragraph: Electricity is a flow of electrons. Atoms of metals tend to give up electrons, explaining why they are good conductors of electricity. The tendency to give up electrons also explains many of the other properties of metals. Q: Why are atoms of metals good conductors of electricity? Choices: - break into smaller parts - conserve heat - hold on to electrons - give up electrons A:
give up electrons
Q: Answer the following question given this paragraph: Q: What type of molecules are found in the hydration shell of a dissolved ion? Choices: - iron - carbon - oxygen - water A:
A: water
Question: Answer the following question given this paragraph: The sporozoans are protists that produce spores, such as the toxoplasma . These protists do not move at all. The spores develop into new protists. Q: What is the term for protists that produce spores, such as the toxoplasm? Choices: - protozoans - spermatozoa - newborns - sporozoans A:
Answer: sporozoans
*Question*
Answer the following question given this paragraph: Sunlight is turned into electricity at a solar power plant. A large group of mirrors focuses sunlight on one place. This place is called a receiver ( Figure below ). At the receiver, a liquid such as oil or water is heated to a high temperature. The liquid transfers its heat by conduction . In conduction, energy moves between two objects that are in contact. The warmer object transfers heat to the cooler object. At a solar power plant, the energy conducted by the heated liquid is used to make electricity. Q: What does a solar power plant turn sunlight into? Choices: - machinery - batteries - mechanical energy - electricity A:
**Answer**
electricity
Answer the following question given this paragraph: Q: Plants supply, ultimately, most of the food eaten by terrestrial animals, along with what gas? Choices: - hydrogen - nitrogen - carbon dioxide - oxygen A:
oxygen