input: OPTIONS:
- complete reaction
- homeostasis
- single reaction
- an addition reaction Now, answer this question: Answer the following question given this paragraph: An addition reaction is a reaction in which an atom or molecule is added to an unsaturated molecule, making a single product . An addition reaction can be thought of as adding a molecule across the double or triple bond of an alkene or alkyne. Addition reactions are useful ways to introduce a new functional group into an organic molecule. Q: What is a reaction in which an atom or molecule is added to an unsaturated molecule, making a single product? A:
A:
output: an addition reaction

Answer the following question given this paragraph: Overview of Transcription. Transcription uses the sequence of bases in a strand of DNA to make a complementary strand of mRNA. Triplets are groups of three successive nucleotide bases in DNA. Codons are complementary groups of bases in mRNA. Q: What is the term for groups of three successive nucleotide bases in dna? A:

OPTIONS:
- triads
- tertiary bases
- triple play
- triplets

Answer: triplets

Problem: OPTIONS:
- calcium
- silicon
- helium
- hydrogen
Q: Answer the following question given this paragraph: The replacing of the electron enables chlorophyll to respond to another photon. The oxygen molecules produced as byproducts find their way to the surrounding environment. The hydrogen ions play critical roles in the remainder of the light-dependent reactions. Keep in mind that the purpose of the light-dependent reactions is to convert solar energy into chemical carriers that will be used in the Calvin cycle. In eukaryotes and some prokaryotes, two photosystems exist. The first is called photosystem II, which was named for the order of its discovery rather than for the order of the function. After the photon hits, photosystem II transfers the free electron to the first in a series of proteins inside the thylakoid membrane called the electron transport chain. As the electron passes along these proteins, energy from the electron fuels membrane pumps that actively move hydrogen ions against their concentration gradient from the stroma into the thylakoid space. This is quite analogous to the process that occurs in the mitochondrion in which an electron transport chain pumps hydrogen ions from the mitochondrial stroma across the inner membrane and into the intermembrane space, creating an electrochemical gradient. After the energy is used, the electron is accepted by a pigment molecule in the next photosystem, which is called photosystem I (Figure 5.13). Q: What type of ions play critical roles in light-dependent reactions? A:
Answer: hydrogen

Problem:OPTIONS:
- eons
- days
- minutes
- lifetime

Answer the following question given this paragraph: The Cellular Basis of Immunological Memory As already discussed, one of the major features of an adaptive immune response is the development of immunological memory. During a primary adaptive immune response, both memory T cells and effector T cells are generated. Memory T cells are long-lived and can even persist for a lifetime. Memory cells are primed to act rapidly. Thus, any subsequent exposure to the pathogen will elicit a very rapid T cell response. This rapid, secondary adaptive response generates large numbers of effector T cells so fast that the pathogen is often overwhelmed before it can cause any symptoms of disease. This is what is meant by immunity to a disease. The same pattern of primary and secondary immune responses occurs in B cells and the antibody response, as will be discussed later in the chapter. Q: Memory t cells are long-lived and can even persist for how long? A:
****
A: lifetime

Answer the following question given this paragraph: Earth is the only planet in the solar system that has water in all three states. Q: Earth is the only planet in the solar system that has what element, which is essential for human life, present in all three of its states? A:
OPTIONS:
- helium
- oxygen
- carbon
- water
water

Answer the following question given this paragraph: After food is digested, the resulting nutrients are absorbed. Absorption is the process in which substances pass into the bloodstream, where they can circulate throughout the body. Absorption of nutrients occurs mainly in the small intestine. Any remaining matter from food that cannot be digested and absorbed passes into the large intestine as waste. The waste later passes out of the body through the anus in the process of elimination . Q: What is the process called in which nutrients pass into the bloodstream? A:
OPTIONS:
- accumulation
- accumulation
- incorporation
- absorption

Answer:
absorption