Answer the following question given this paragraph: The Krebs cycle completes the breakdown of glucose begun in glycolysis. If oxygen is present, pyruvate enters the mitochondria and is converted to AcetylCoA. AcetylCoA enters the cycle by combining with 4-carbon oxaloacetate. Study the diagram to confirm that each turn of the cycle (two for each glucose) stores energy in 3 NADH+H + , one FADH 2 , and one ATP (from GTP), and releases 2 CO 2 . The Krebs cycle is also known as the Citric Acid Cycle or the tricarboxylic acid cycle (TCA cycle). Q: What cycle completes the breakdown of glucose begun in glycolysis? Choices: - bacterium - vireos - priebus - krebs A:
krebs
Answer the following question given this paragraph: Reactivity is how likely an element is to react chemically with other elements. Some nonmetals are extremely reactive, whereas others are completely nonreactive. What explains this variation in nonmetals? The answer is their number of valence electrons. These are the electrons in the outer energy level of an atom that are involved in interactions with other atoms. Let's look at two examples of nonmetals, fluorine and neon. Simple atomic models of these two elements are shown in the Figure below . Q: The number of valence electrons determines variation of what property in nonmetals? Choices: - permeability - density - turbidity - reactivity A:
reactivity
Q: Answer the following question given this paragraph: Cellulose is another polymer of glucose, consisting of anywhere from hundreds to over ten thousand monomers. It is the structural component of the cell walls of green plants and is the single most common organic molecule on Earth. Roughly 33% of all plant matter is cellulose. The linkage structure in cellulose is different than that of starch, and cellulose is indigestible except by a few microorganisms that live in the digestive tracts of cattle and termites. The figure below shows a triple strand of cellulose. There is no branching and the fibers adopt a very stiff rod-like structure with numerous hydrogen bonds between the fibers adding to its strength. Cellulose is the main component of paper, cardboard, and textiles made from cotton, linen, and other plant fibers. Q: What is the main component of paper, cardboard, and textiles made from cotton, linen, and other plant fibers? Choices: - pulp - cambium - vascular tissue - cellulose A:
A: cellulose
Question: Answer the following question given this paragraph: Unlike ionic compounds, covalent compounds do not have freely moving electrons, so they cannot conduct electricity. Q: Unlike ionic compounds, covalent compounds do not have freely moving what? Choices: - neutrons - atoms - Nuclei. - electrons A:
Answer: electrons
*Question*
Answer the following question given this paragraph: Pollination occurs when pollen is transferred from a male to female cone. If sperm then travel from the pollen to an egg so fertilization can occur, a diploid zygote results. The zygote develops into an embryo within a seed, which forms from the ovule inside the female cone. If the seed germinates, it may grow into a mature sporophyte tree, which repeats the cycle. Q: If pollination occurs, what does the zygote develop into? Choices: - an ovum - a sperm - an egg - an embryo A:
**Answer**
an embryo
Answer the following question given this paragraph: Red blood cells carry proteins called antigens on their surface. People may vary in the exact antigens their red blood cells carry. The specific proteins are controlled by the genes they inherit from their parents. The particular antigens you inherit determine your blood type. Q: What are the specfic types of proteins that determine your blood type called? Choices: - Plasma - antibodies - Globulins - antigens A:
antigens