Biology Flashcards F212

Descrição

F212 From question and answers
Husein Essaji
FlashCards por Husein Essaji, atualizado more than 1 year ago
Husein Essaji
Criado por Husein Essaji mais de 9 anos atrás
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Resumo de Recurso

Questão Responda
Name the infective agent that causes TB Mycobacterium
Species Richness Number of species in an area
Species Evenness How many individuals there are of every species in an area
Biodiversity Variety of... Species Ecosystem Alleles ...in an area
Phylogeny Evolutionary relationships (ER) between organisms Study of closeness of ER Basis of modern classification The closer the ER the closer the taxonomic group
Dichotomous Key Each question has two options
Immune Response Response to an antigen that involves production of antibodies
Neutralisation Antibody binds to specific antigen Cover binding sites on pathogens Can't enter cell
Agglutination Antibodies bind together many pathogens Clump is too large to enter host cell
Balanced diet Contains each nutrient in right proportions
Describe how you would carry out emulsion test Add ethanol to sample Shake Add Water
Speciation The formation of new species
Continuous Variation Differences between individuals that cover a range of values rather that discrete categories
Adaptation A variation that increase the chances of survival
Binomial A system of naming organisms that uses two scientific (Latin) names for species
ex situ The type of conservation of which seed banks are an example
Environmental Impact Assessment/ EIA A study carried out by a local planning authority in order to judge the effect of a development on the biodiversity of an area
Name the vector for the malarial parasite Female Anopheles
Name the five Kingdoms Prokaryotae, Fungi, Plantae, Protoctista, Animalia
Symptoms of emphysema Shortness of breath Barrel chest Pulmonary hypertension Fatigue
Action of B lymphocyte in immune respose B lymphocyte has antigen receptors Clonal selection - selection of B lymphocytes by APCs Clonal expansion - selected cells divide B cells differentiate to form plasma cells or memory cells
Structure of glycogen Carbohydrate (polysaccharide) Alpha glucose units 1-4 Glycosidic bonds 1-6 Glycosydic bonds Branched
Structure of collagen Protein (polypeptide) Amino acid units Peptide bonds Helical 3 chains per molecule Cross links between chains
Effect of Nicotine Increases heart rate Constricts atrioles Makes platlets sticky
Effect of carbon monoxide Damages lining of arteries Reduces ability of Hb to carry oxygen
Role of LDLs in frormation of atheroma Damage to endothelium LDLs collect at site of damage LDLs deposited in arterial walls
Function of disulfide bridge and hinge region of antibody Hold polypeptide chains together and hold 3D shape of molecule Allow molecule to flex
Why is variable region improtant Different antibodies have different amino acid sequences. Different antibodies have different shapes to fit different antigens.
Haemoglobin vs. Collagen
Amylose vs Cellulose Both Glucose bonded together with Glycosidic Bonds. Both are insoluble. Cellulose is composed of β Glucose and forms long straight chains, in which every other Glucose monomer flipped over, whereas Amylose is composed of α Glucose, forms a coiled chain

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