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what is microbodies microbodies microbodies are formed by pinching off of vesicles from rough endoplasmic reticulum they are not found in every
what is organellesorganelles eukaryotic cells contain various membrane-bound structures called organelles in contrast to prokaryotes which lack
what is passive transportpassive transport specialized proteins called permeases also move specific substances across the cell membrane in a
explain the term active transportactive transport at intervals protein assemblies involved in selective or active transport of materials are
explain diffusion and osmosis in cell structurediffusion and osmosis diffusion through a cell membrane occurs as it does elsewhere from an area
explain the differance between pinocytosis and phagocytosispinocytosis and phagocytosis the cell membrane occasionally invaginates or indents to
explain the different types of cells in cell structure types of cells cells can be classified as being either prokaryotic or eukaryotic
what is protein synthesisprotein synthesis protein synthesis begins in the nucleus with the formation of mrna from a dna template through
what is rnarna is a single-stranded molecule which has as its 5-carbon sugar ribose instead of the deoxyribose found in dna also uracil is
explain what is dnadna dna is the source of the information that directs the development of the cell although all segments of dna are not active in
explain briefly nucleic acids dna amp rnanucleic acids dna amp rna nucleic acids are the molecules that contain genetic information that is
explain the various types of protein structureprotein structure the structure of proteins can be examined at four levels of increasing
elaborate proteinsproteins proteins are the primary constituents of most living cells proteins are important components of cell membranes and
explain other lipids in biological compoundother lipids another important type of lipids are the steroids with a basic structure consisting of
what is phospholipids phospholipids phospholipids are similar to triglycerides except that they contain only two fatty acid and one or both of
explain fats in biological compoundfats monoglycerides diglycerides and triglycerides are fats consisting of a backbone of the alcohol molecule
explain lipidslipids lipids function as energy-storing molecules such as fats and oils protective waxes digestive tract lubricants heat insulation
what is carbohydratescarbohydrates carbohydrates function mainly as immediate sources of energy stored energy such as starch and structural
explain the compound waterwater water is the most important compound in living cells making up most of the bulk of living organisms our own
what is electro osmosis electro osmosis electroosmosis is the movement of charged molecules along a charged surfaces in response to a voltage
what is osmosis osmosis osmosis refers to the diffusion of water across a semi-permeable membrane from an area of higher concentration of water
brefily describe diffusion diffusion diffusion is the process in which there is a net movement of particles of a substance from an area of
explain particle movement particle movement particles are moved down a concentration gradient by the process of diffusion osmosis is simply the
what is colloids and suspensions colloids and suspensions colloids and suspensions are mixtures in which larger particles replace solutes
explain water universal solvent water - universal solvent water is usually referred to as the universal solvent because it is able to dissolve