#7 Biology Eca Review 2014

thalamus – Major input center for sensory information going to the cerebrum and the main output center for motor information leaving the cerebrum.
gene expression – Conversion of the information encoded in a gene first into messenger RNA and then to a protein.
Which one of the following statements about the redox reactions of the electron transport chain is correct? – The redox reactions of the electron transport chain are directly coupled to the movement of protons across a membrane.
Excretion – By urine and feces
Food chain – the sequence of organisms feeding upon each other in an ecosystem
Biotechnological methods – Usually refers to techniques for modifying or manipulating living things in order to get desirable traits or products. Selective breeding, gene splicing, and cloning are examples.
Lysosome – membranous sac of digestive enzymes, contains hydrolytic enzymes that digest engulfed food or damaged organelles
Starch – A complex carbohydrate consisting of a chain of glucose molecules linked together. Primary means of energy storage in plants. Also present in animal cells.
Selective breeding – AKA artificial selection. The human act of choosing the offspring of domesticated animals or crops that have some desirable trait and the mating the offspring in such a way as to maintain that desirable trait.
Polyclonal antibodies differ from monoclonal antibodies in all ways EXCEPT which of the following:
Sclerenchyma – the rigid cells of the ground tissue in plants that contain a hardening agent to give support to the plant
Natural Selection: – Individual with inherited traits that give them an advantage in a particular environment will more likely survive and reproduce than those individuals that do not have those inherited traits.
ecology – study of the relationships between organisms and their environment
Fluid mosaic model – A plasma membrane with components constantly in motion, sliding past one another within the lipid bilayer.
Accessory pigment – Compound other than chlorophyll that absorbs light at different wave lengths then chlorophyll
organelles – found in the cell, perform specific functions for the cell (mitochondria, golgi, ribosomes etc)
isotonic solution – concentration of solute molecules are the same on the outside and the inside are the same
Pоlyclоnаl аntibоdies differ from monoclonаl antibodies in all ways EXCEPT which of the following:
gene – a discrete unit of hereditary information consisting of a specific nucleotide sequence in DNA
Acid – compound that donates H+ ions to an aqueous solution and measures between 0 and 7 on the pH scale
Mitochondria – The organelle that is the site of most respiration

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