Answer the following question given this paragraph: In alcoholic fermentation, glycolysis is followed by a step that produces alcohol and carbon dioxide. This step also forms additional molecules of ATP. It occurs in yeast, such as the yeast in bread. Carbon dioxide from alcoholic fermentation creates gas bubbles in bread dough. The bubbles leave little holes in the bread after it bakes. You can see them in the bread in Figure below . The holes make the bread light and fluffy. Q: Bubbles in bread dough are created by what gas produced during alcoholic fermentation? Choices: - acid dioxide - combustion dioxide - yeast dioxide - carbon dioxide A:
carbon dioxide
(Question)
Answer the following question given this paragraph: Mating refers to the union of a male and female of the same species for reproduction. The relationship between mates varies by species. Adults may have many mates, or they may mate with just one individual. Mates may stay together only while mating, for an entire breeding season, or even for life. Q: What term refers to the union of a male and female of the same species for reproduction? Choices: - evolution - life cycle - behavior - mating A:
(Answer)
mating
Ques: Answer the following question given this paragraph: The Kyoto Protocol is another worldwide agreement on air pollution. It was passed in 1997. The Protocol focuses on controlling greenhouse gas emissions. Its aim is to control global warming. Q: What does the kyoto protocol focus on controlling? Choices: - carbonate gas emissions - Helium emissions - Ozone emissions - greenhouse gas emissions A:
Ans: greenhouse gas emissions
(Q).
Answer the following question given this paragraph: 3.6 Active Transport The combined gradient that affects an ion includes its concentration gradient and its electrical gradient. Living cells need certain substances in concentrations greater than they exist in the extracellular space. Moving substances up their electrochemical gradients requires energy from the cell. Active transport uses energy stored in ATP to fuel the transport. Active transport of small molecular-size material uses integral proteins in the cell membrane to move the materialthese proteins are analogous to pumps. Some pumps, which carry out primary active transport, couple directly with ATP to drive their action. In secondary transport, energy from primary transport can be used to move another substance into the cell and up its concentration gradient. Endocytosis methods require the direct use of ATP to fuel the transport of large particles such as macromolecules; parts of cells or whole cells can be engulfed by other cells in a process called phagocytosis. In phagocytosis, a portion of the membrane invaginates and flows around the particle, eventually pinching off and leaving the particle wholly enclosed by an envelope of plasma membrane. Vacuoles are broken down by the cell, with the particles used as food or dispatched in some other way. Pinocytosis is a similar process on a smaller scale. The cell expels waste and other particles through the reverse process, exocytosis. Wastes are moved outside the cell, pushing a membranous vesicle to the plasma membrane, allowing the vesicle to fuse with the membrane and incorporating itself into the membrane structure, releasing its contents to the exterior of the cell. Q: The cell expels waste and other particles through a process called what? Choices: - biosynthesis - metamorphisis - endocytosis - exocytosis A:
(A).
exocytosis
Ques:Answer the following question given this paragraph: The corona ( Figure below ) is the outermost part of the Sun's atmosphere. It is the Sun's halo, or "crown. " With a temperature of 1 to 3 million K, the corona is much hotter than the photosphere. The corona extends millions of kilometers into space. Sometime you should try to see a total solar eclipse. If you do, you will see the Sun's corona shining out into space. Q: What is the outermost part of the sun's atmosphere called? Choices: - rays - ultraviolet - particles - corona A:

Ans:corona
Ques: Answer the following question given this paragraph: Prokaryotic organisms reproduce asexually by binary fission , a process that produces identical offspring ( Figure below ). In asexual reproduction , a single parent produces genetically identical offspring. As prokaryotes do not have a nucleus, and have only one circular chromosome, they do not need to reproduce by the same mechanism as eukaryotic cells; mitosis does not exist in prokaryotic cells . Prokaryotic cell division is a much simpler process. In prokaryotic cell division, after the single chromosome is copied, the cell grows larger. Eventually the two chromosomes separate and move to opposite ends of the cell. Newly formed cell membrane then grows into the center of the cell, separating the two chromosomes, and forming two genetically identical daughter cells. Some eukaryotic organelles, such as mitochondria and chloroplasts, also divide by binary fission. Q: How do prokaryotic organisms reproduce asexually? Choices: - mitosis - residual fission - kinetic fission - binary fission A:
Ans:
binary fission