Biology, 30.01.2020 21:58 cameronbeaugh

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Answer from: kikibee

I GOT YOU MY BOI
The first use of enzymes occurred more than 5,000 years ago, when people stored milk in animal stomachs, which contains enzymes called “rennet,” that turn milk into cheese.(nasty) This is a good example of how enzymes work as catalysts, that is, they speed up biological reactions. Novozymes’ customers use enzymes to replace chemicals in, and improve efficiency of, a wide variety of industrial processes, for example in the manufacture of margarine, beer, yogurt, concrete, leather, textiles and ethanol, where the enzymes are not part of the end-product. Enzymes are also used directly in products such as laundry detergents, where they help remove stains and enable low-temperature washing.

Answer from: Quest

water is a polar molecule. a chemical bond is a force of attraction between atoms or ions. bonds form when atoms share or transfer valence electrons. atoms form chemical bonds to achieve a full outer energy level, which is the most stable arrangement of electrons. so, false

explanation:

in h2o molecule, two water molecules are bonded by a hydrogen bond but the bond between two h - o bonds within a water molecule are covalent. the greater the electronegativity difference, the more ionic the bond is. bonds that are partly ionic are called polar covalent bonds. nonpolar covalent bonds, with equal sharing of the bond electrons, arise when the electronegativities of the two atoms are equal.

Answer from: Quest

the potatoes have high sugar concentrations and although these potatoes were different we could seethe effects that their sugar concentrations had in different environments. for example, the potatoes in sample a, were placed in pure water. this created a hypertonic environment and caused the potatoes to draw in water from its surroundings. we saw the opposite happen with the potatoes in sample b when placed in the sodium chloride solution. the potatoes in this case were in a hypotonic solution and therefore lost water to their surroundings.

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