Answer the following question given this paragraph: The number of moles of carbon dioxide gas is first calculated by stoichiometry. Then the ideal gas law is used to calculate the volume of CO 2 produced. Q: How are the number of moles of carbon dioxide gas calculated? Choices: - relativistic - casuistry - phytochemistry - stoichiometry A:
stoichiometry
(Question)
Answer the following question given this paragraph: Facilitated Diffusion Across a Cell Membrane. Channel proteins and carrier proteins help substances diffuse across a cell membrane. In this diagram, the channel and carrier proteins are helping substances move into the cell (from the extracellular space to the intracellular space). Q: Channel proteins and carrier proteins help substances diffuse across what? Choices: - endoplasmic reticulum - ribosomes - cytoplasm - cell membrane A:
(Answer)
cell membrane
Ques: Answer the following question given this paragraph: In measuring quantities we always aim for high accuracy . Estimates that fall within the range of uncertainty for a given instrument are said to be accurate. In our previous example, all of the values between and including 52.4 mL and 53.4 mL would be considered accurate. Estimates that fall outside this range are inaccurate. Accuracy describes how close an estimate is to a known standard. Q: What describes how close an estimate is to a known standard? Choices: - hypothesis - frequency - diversity - accuracy A:
Ans: accuracy
(Q).
Answer the following question given this paragraph: Besides their strength, another pro of electromagnets is the ability to control them by controlling the electric current. Turning the current on or off turns the magnetic field on or off. The amount of current flowing through the coil can also be changed to control the strength of the electromagnet. Q: Electromagnets can be controlled by controlling what type of current? Choices: - magnetic - positive - negative - electric A:
(A).
electric
Ques:Answer the following question given this paragraph: DNA. By contrast though, bacterial DNA is contained in a large, circular strand. This single chromosome is located in a region of the cell called the nucleoid . The nucleoid is not an organelle, but a region within the cytoplasm. Many bacteria also have additional small rings of DNA known as plasmids . Q: Bacterial dna is contained in a large, circular strand; this single chromosome is located in a region of the cell called what? Choices: - polypeptide - amino acid - nucleic acid - the nucleoid A:

Ans:the nucleoid
Question: Answer the following question given this paragraph: Phototrophs are organisms that capture light energy and convert it to chemical energy inside their cell. Most phototrophs are the autotrophs that perform photosynthesis, which are also known as photoautotrophs. These organisms have the ability to fix carbon from carbon dioxide into organic compounds, such as glucose. Chemotrophs , on the other hand, do not get their energy from carbon. These are organisms that break down either organic or inorganic molecules to supply energy for the cell through chemosynthesis. Chemotrophs can be either autotrophic (chemoautotrophs) or heterotrophic (chemoheterotrophs). Chemoautotrophs derive their energy from chemical reactions, and synthesize all necessary organic compounds from carbon dioxide. Chemoheterotrophs are unable to fix carbon to form their own organic compounds. The various types of metabolisms are discussed in the Prokaryotes: Nutrition and Metabolism (Advanced) concept. Q: Which organisms capture light energy and convert it to chemical energy inside their cell? Choices: - chloroplasts - pores - sporozoans - phototrophs A:
Answer:
phototrophs