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The Properties of Water Essay introduction. One property is cohesion. The cohesion property is properly defined as the binding of water molecules by hydrogen bonds.
Water has this property as a result of the chemical bonding between water. Cohesion of the strong hydrogen bonds allows the water molecules to stick together, almost as a unit of one.
A force exerted on one of the molecules will be exerted on all of the adjacent molecules as a result of cohesion. Cohesion, often with the cooperation of adhesion, the clinging of one substance to another, adds to the function and ability of water to overcome strong natural forces, such as gravity.
When water is in its liquid state of matter, the hydrogen bonds are very frail and weak, about one-twentieth as strong as covalent bonds.
The bonds are made, broken, and remade very quickly. Each hydrogen bond lasts only a few trillionths of a second, but the constant synthesis of new bonds with a succession of partners acquires equilibrium.
We will write a custom essay sample on AP Biology: A property related to cohesion is surface tension, a measure of how difficult it is to stretch or break the surface of a liquid. Water is known to have a greater surface tension than most other liquids.
An ordered arrangement of hydrogen-bonded water molecules is present at the boundary between water and air. As a result water behaves as though it is coated with an invisible film along the surface. An example how the cohesion of water affects the functioning of living organisms is present in plants.
Evaporation from the leaves in plants pulls water up from the roots. Cohesion due to hydrogen bonding helps hold he column of water molecules together within the xylem vessels located in the stem or trunk of a plant.
Adhesion helps the process by resisting the pull of gravity against the upward motion of the molecules. Another property of water is its solubility. Water is known as the universal solvent of life.
Many substances can be combined with water to form a solution, a homogeneous mixture between two substances. Water, in solutions, is known as the solvent. The substance or substances being dissolved is known as the solute.
An aqueous solution is when a homogeneous mixture where water is the solvent is present. As found by the medieval alchemists, water is the most soluble liquid. Although water is technically not universal, it is very versatile solvent.Essay Ap Bio Work.
AP BIOLOGY PAK 1 HOMEWORK Name: Jeremy Ng Per: 3 Adv: tranceformingnlp.com Chapter 1: Introduction: Themes in the Study of Life Begin your study of biology this year by reading Chapter 1. You don’t need to get every multiple-choice question right on the AP Biology exam. To get a 4 or 5, you need to get a large portion, but not all, of the questions right.
If you don’t have enough time to get to every question, make sure that the questions you skip are the longest, most involved ones. This study guide is my completed questions to the questions that are issued by the teacher using the text "Biology" by Campbell and tranceformingnlp.comr 8: Membrane Structure and Function1.
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|AP essay questions -||To get a 4 or 5, you need to get a large portion, but not all, of the questions right. The more you know about the question types, the better equipped you will be to handle them.|
Phospholipids consist of a hydrophilic head, and a hydrophobic tail. /5(6). Visit the College Board on the Web: tranceformingnlp.com Question 3 Water is essential to all living things.
(a) Discuss THREE properties of water. (b) Explain each . The movement of water through a plant is facilitated by osmosis, root pressure, and the physical and chemical properties of water.
Transpiration creates a lower osmotic potential in the leaf, and the TACT mechanism describes the forces that move water and dissolved nutrients up the xylem (AP . AP Biology AP Test Question – “Water” Name_____ The unique properties of water make life possible on Earth.
Approximately three-quarters of the Earth’s surface is covered by water. Cells are made up of around % water. Water comprises roughly 70% of the human body.