Bio Mol - Water and Ions

Metabolic Reaction

a biochemical reaction that occurs in living organisms in order to keep them alive

a metabolite

molecule that takes place in metabolic reaction

In metabolic reactions, water is a very important ___ and often a __

metalbolite — it is often a necessary reactant to begin a metabolic reaction. It is also often a product.

Key example of water as a metalbolite

Water in condensation and in hydrolosis

Major properties of water

solvent, metabolite,heat caoacity, cohesion,density, boiling/melt point, unique solid form, ionization,

What are the unique properties of water that make it essential for life?

Properties include … high boiling and melting points, high specific heat, high surface tension and dissolving ability. These properties allow water to regulate temperature, transfer nutrients like water in plants, and provide a suitable place for biological processes to occur

Why are water molecules cohesive!

bc of hydrogen bonding so they stick together

meaning of high heat capcity.

meaning water can absorb or release large amounts of heat without changing temp dramatically.

why is water’s property of high heat capacity very good in the enviroment

1. because it can absorb or release lots of energy without changing the temp dramatically. Therefore, it is a excellent temperature buffer and can help regulate temp in living organisms and enviroments.

2. since it is a buffer it is good in climate regulation and can stabilize the rising temperatures of the globe

Water is a polar or non polar molecule? This means it can?

Water is polar - this means it can dissolve other polar molecules and ions.

Water’s solvent propertieis allow…

makes an excellent solvent for molecules like sugars, acids etc and can transport nutrients and wastes in living organisms

what is Latent heat capacity of water?

Amount of heat energy required to change the phase of water without changing its temp.

types of latent heat capacity of water

1. latent heat of fusion

2. latent heat of vaporization

Why is latent heat capcity important

it regulates temp in living organisms and enviroments

Cohesion allows for water to form as?

droplets and be a liquid rather than breaking into seperate molecules

Can you explain the role of water in maintaining homeostasis in living organisms?

It regulates body temperature through its high specific heat capacity, transports nutrients, and facilitates chemical reactions. It also helps balance the levels of ions in bodies, which is necessary for bodily processes to occur. It creates a healthy, stable enviroment which ensures survivial.

Why is water such a important metalbolite

Because it is such a good solvent for many biological molecules and it is a reactant in many many metalbolic reactions. Also because it is a source of hydrogen ions, which are important for metabolic processes like enzyme catalysis.

Water is a source of ___ ___. this occurs how

hydrogen ions - this occurs thru the ionization of water molecules to form Hydrogen and Hydroxide ions

ice is — dense than water.

Ice is less dense than water.

inorganic ions

atoms with unshared electrons in their outer shell.

what do inorganic ions carry

a positive or negative charge

where r inorganic ions found? In what concentration?

they are found in organisms where they occur in solution — in the cytoplasm of cells and body fluids. in both high and low concentration

Ions also form

form parts of larger molecules

specific functions of inogrnaic ions (4)

• iron ions are in haemohlobin — they help with transport of oxygen

• phosphate ions form a structure role in DNA molecules

• hydrogen ions help determine pH of a solution and the functioning of enzymes

• Na Ions are important in transport of glucose across plasma membrane

describe the structure of water

it is a Hydrogen atom that is chemically bonded to 2 oxygen atoms through covalent bonds. Due to the uneven charge from the neagtive O and the positive H, it is polar.

the opposite charges in water means that the water molecules are

attracted to each other…these forces are called hydrogen bonds