Answer the following question given this paragraph: Of the four major macromolecular groups (carbohydrates, lipids, proteins, and nucleic acids) that are processed by digestion, carbohydrates are considered the most common source of energy to fuel the body. They take the form of either complex carbohydrates, polysaccharides like starch and glycogen, or simple sugars (monosaccharides) like glucose and fructose. Sugar catabolism breaks polysaccharides down into their individual monosaccharides. Among the monosaccharides, glucose is the most common fuel for ATP production in cells, and as such, there are a number of endocrine control mechanisms to regulate glucose concentration in the bloodstream. Excess glucose is either stored as an energy reserve in the liver and skeletal muscles as the complex polymer glycogen, or it is converted into fat (triglyceride) in adipose cells (adipocytes). Among the lipids (fats), triglycerides are most often used for energy via a metabolic process called -oxidation. About onehalf of excess fat is stored in adipocytes that accumulate in the subcutaneous tissue under the skin, whereas the rest is stored in adipocytes in other tissues and organs. Proteins, which are polymers, can be broken down into their monomers, individual amino acids. Amino acids can be used as building blocks of new proteins or broken down further for the production of ATP. When one is chronically starving, this use of amino acids for energy production can lead to a wasting away of the body, as more and more proteins are broken down. Nucleic acids are present in most of the foods you eat. During digestion, nucleic acids including DNA and various RNAs are broken down into their constituent nucleotides. These nucleotides are readily absorbed and transported throughout the body to be used by individual cells during nucleic acid metabolism. Q: Starch and glycogen, as well as simple sugars like glucose and fructose, can all be categorized broadly as what? Choices: - impurities - acids - vegetables - carbohydrates A:
carbohydrates
(Question)
Answer the following question given this paragraph: Chapter 30 1 Figure 30.7 A and B. The cortex, pith, and epidermis are made of parenchyma cells. 3 Figure 30.34 B. 4 C 6 C 8 A 10 B 12 A 14 B 16 C 18 B 20 D 22 C 24 C 26 C 27 Lawn grasses and other monocots have an intercalary meristem, which is a region of meristematic tissue at the base of the leaf blade. This is beneficial to the plant because it can continue to grow even when the tip of the plant is removed by grazing or mowing. 29 Stomata allow gases to enter and exit the plant. Guard cells regulate the opening and closing of stomata. If these cells did not function correctly, a plant could not get the carbon dioxide needed for photosynthesis, nor could it release the oxygen produced by photosynthesis. 31 In woody plants, the cork cambium is the outermost lateral meristem; it produces new cells towards the interior, which enables the plant to increase in girth. The cork cambium also produces cork cells towards the exterior, which protect the plant from physical damage while reducing water loss. 33 Annual rings can also indicate the climate conditions that prevailed during each growing season. 35 A tap root system. Q: Regulated by guard cells, stomata allow what to enter and exit the plant? Choices: - molecules - fluid - nutrients - gases A:
(Answer)
gases
Ques: Answer the following question given this paragraph: Visual Communication in Animals. Many animals use visual cues to communicate. Q: The process in which animals use visual cues to communicate is known as what? Choices: - visual indication - peripheral communication - distinctive communication - visual communication A:
Ans: visual communication
(Q).
Answer the following question given this paragraph: 15.5 Echinoderms and Chordates Echinoderms are deuterostome marine organisms. This phylum of animals bear a calcareous endoskeleton composed of ossicles covered by a spiny skin. Echinoderms possess a water-based circulatory system. The madreporite is the point of entry and exit for water for the water vascular system. The characteristic features of Chordata are a notochord, a dorsal hollow nerve cord, pharyngeal slits, and a post-anal tail. Chordata contains two clades of invertebrates: Urochordata (tunicates) and Cephalochordata (lancelets), together with the. Q: What kind of system do echinoderms possess? Choices: - primitive respiratory - autonomic nerous system - photosynthetic - water-based circulatory A:
(A).
water-based circulatory
Ques:Answer the following question given this paragraph: Nitrogen-fixing bacteria change nitrogen gas from the atmosphere to nitrates in soil. Q: What type of bacteria change nitrogen gas from the atmosphere to nitrates in soil? Choices: - hydrophylic bacteria - multicellular bacteria - spiral bacteria - nitrogen fixing bacteria A:

Ans:nitrogen fixing bacteria
Question: Answer the following question given this paragraph: Beta decay occurs when an unstable nucleus emits a beta particle and energy. A beta particle is an electron. It has a charge of -1. In nuclear equations, a beta particle is represented by the symbol . The subscript -1 represents the particle's charge, and the superscript 0 shows that the particle has virtually no mass. Nuclei contain only protons and neutrons, so how can a nucleus emit an electron? A neutron first breaks down into a proton and an electron (see Figure below ). Then the electron is emitted from the nucleus, while the proton stays inside the nucleus. The proton increases the atomic number by one, thus changing one element into another. Q: What occurs when an unstable nucleus emits a beta particle and energy? Choices: - nucleus decay - alpha decay - methane decay - beta decay A:
Answer:
beta decay