Please answer the following questions What accounts for the fluidity of all cell
ID: 99935 • Letter: P
Question
Please answer the following questions
What accounts for the fluidity of all cell membranes? Select one: a. Water b. Proteins c. Carbohydrates d. Cytoskeleton e. Phospholipids What property of water explains why placing a sealed glass container filled with water in your freezer overnight is not a good idea? MARK ALL ANSWERS THAT ARE CORRECT. Select one: a. Solid water is more dense than liquid water b. Solid water is less dense than liquid water c. Frozen water molecules are farther apart than liquid water molecules d. Frozen water molecules are closer together than liquid water molecules e. This is a myth perpetuated by social media What group of biological molecules provides the most energy per gram? Select one: a. Lipids b. Simple sugars c. Starch d. Cellulose e. Proteins What is meant by the term gene therapy? Select one: a. Inserting a functional version of a defective gene in an attempt to cure diseases b. Talking about potential genetic flaws in your genome with a counselor c. AnalyzExplanation / Answer
09.OPTION E:-phospholipids
REASON:-Any lipid consisting of a diglyceride combined with a phosphate group and a simple organic molecule such as choline or ethanolamine; they are important constituents of biological membranes.If unsaturated fatty acids are compressed, the "kinks" in their tails push adjacent phospholipid molecules away, which helps maintain fluidity in the membrane.
10.OPTION B:-solid water is less denser than liquid water
REASON:-When water freezes, water molecules form a crystalline structure maintained by hydrogen bonding. Solid water, or ice, is less dense than liquid water. Ice is less dense than water because the orientation of hydrogen bonds causes molecules to push farther apart, which lowers the density.
and also
OPTION D:-frozen water molecules are closer together than liquid water molecules.
REASON:-When a liquid (like water) is frozen, all of the molecules start sticking to each other and holding on very tightly. Because different types of molecules have different shapes, they hold on to each other in different places. Most of the time, when they start holding on to each other, they get closer together. When the molecules get closer together, they take up less space, so the frozen solid ends up being smaller than the unfrozen liquid.
Water, however, is a bit weird. When the water molecules start holding on to each other really tightly, they make a pattern that actually takes up /more/ space than they did when they weren't stuck together. (This pattern is what you see if you look at ice crystals.) So, when water freezes, the molecules take up more space, and the ice ends up being even /bigger/ than the water was.
11.OPTION A:-lipids
REASON:-Triacylglycerols are highly concentrated stores of metabolic energy because they are reduced and anhydrous. The yield from the complete oxidation of fatty acids is about 9 kcal g-1 (38 kJ g-1), in contrast with about 4 kcal g-1 (17 kJ g-1) for carbohydrates and proteins.
12.OPTION A:-inserting functional version of a defective gene in an attempt to cure disease.
REASON :-it is the only process of correcting gene sequence.
13.OPTION A:-oxygen gas
REASON:-oxygen and glucose are the products of photosynthesis .the oxygen is low energy molecule and glucose is the high energy molecule.