怡和獎(jiǎng)學(xué)金是什么？申牛劍的同學(xué)不了解一下？
怡和獎(jiǎng)學(xué)金是什么？怡和獎(jiǎng)學(xué)金是專門資助亞洲杰出青年，前往劍橋大學(xué)和牛津大學(xué)學(xué)習(xí)。獎(jiǎng)學(xué)金包括3-4年的學(xué)費(fèi)、雜費(fèi)、生活費(fèi)以及每年一次往返國際旅費(fèi)，可以說是四舍五入等于留學(xué)不要錢！ 01 怡和獎(jiǎng)學(xué)金介紹 怡和...
CIE A Level Biology復(fù)習(xí)筆記2.4.2 The Role of Water in Living Organisms
Water Molecules: In Living Organisms Water has many essential roles in living organisms due to its properties: The?polarity?of water molecules The presence and number of?hydrogen bonds?between wate...
CIE A Level Biology復(fù)習(xí)筆記2.4.1 Water & the Hydrogen Bond
Water Molecules: Hydrogen Bonds Water is of great biological importance. It is the medium in which all metabolic reactions take place in cells. Between 70% to 95% of the mass of a cell is water As ...
CIE A Level Biology復(fù)習(xí)筆記2.3.6 Collagen
The Molecular Structure of Collagen Collagen?is the most common?structural?protein found in vertebrates In vertebrates it is the component of?connective tissue?which forms: Tendons Cartilage Ligame...
CIE A Level Biology復(fù)習(xí)筆記2.3.5 Haemoglobin
The Molecular Structure of Haemoglobin Structure Haemoglobin is a?globular?protein which is an oxygen-carrying pigment found in vast quantities in red blood cells It has a?quaternary?structure as t...
CIE A Level Biology復(fù)習(xí)筆記2.3.4 Globular & Fibrous Proteins
Proteins: Globular & Fibrous Globular Globular proteins?are?compact, roughly?spherical?(circular) in shape and?soluble?in water Globular proteins form a spherical shape when folding into their ...
CIE A Level Biology復(fù)習(xí)筆記2.3.3 Protein Shape
Proteins: Interactions & Shape A polypeptide chain will fold differently due to the interactions (and hence the bonds that form) between?R groups. The three-dimensional configuration that forms...
CIE A Level Biology復(fù)習(xí)筆記2.3.2 The Four Levels of Protein Structure
Proteins: Structures There are?four?levels of structure in proteins, three are related to a single polypeptide chain and the fourth level relates to a protein that has two or more polypeptide chain...
CIE A Level Biology復(fù)習(xí)筆記2.3.1 Amino Acids & the Peptide Bond
Amino Acids & the Peptide Bond Proteins Proteins are polymers (and macromolecules) made of monomers called?amino acids The sequence, type and number of the amino acids within a protein determin...
CIE A Level Biology復(fù)習(xí)筆記2.2.8 Phospholipids
The Vital Role of Phospholipids Structure Phospholipids are a type of lipid, therefore they are formed from the monomer glycerol and fatty acids Unlike triglycerides, there are only?two fatty acids...
CIE A Level Biology復(fù)習(xí)筆記2.2.7 Triglycerides
Triglycerides: Basics Lipids Macromolecules which contain carbon, hydrogen and oxygen atoms. However, unlike carbohydrates lipids contain a lower proportion of oxygen Non-polar?and?hydrophobic?(ins...
CIE A Level Biology復(fù)習(xí)筆記2.2.6 Cellulose
Cellulose: Structure & Function Cellulose?is a?polysaccharide Polysaccharides are macromolecules that are?polymers?formed by?many?monosaccharides joined by?glycosidic?bonds in a?condensation?re...
