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20 Cards in this Set
- Front
- Back
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Which type of cell junction allows the passage of ions and small molecules between ajoining cells?
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Correct Gap junctions
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What type of cartilage connects ribs to sternum?
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Correct Hyaline cartilage
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Bond which form when two atoms share electrons are called:
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Correct Covalent bonds
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Most neurons spend their life in which stage of the cell cycle?
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G0
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What substance surrounds connective tissue fibres and cells?
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Correct Ground substance
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Which stage of Interphase is the longest and responsible for organelle and protein manufacture?
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G1
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What bond is formed between sodium and chlorine atoms when sodium donates an electron and chlorine accepts the elctron?
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Correct Ionic bond
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What process takes place during S phase?
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Correct Copying of DNA
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Which of the following statements is true?
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Correct Elements with unequal numbers of protons and electrons are called ions
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Which extracellular fibres are long, straight and very strong?
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Correct Collagen fibres
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Which type of epithelial tissue is used to line blood vessels and the air sacs in the lungs?
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Correct Simple squamous epithelia
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Where would you expect to find fibrocartilage?
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Correct Separating vertebra and in the knee joint
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Which cells secrete connective tissue matrix material (extracellular fibres and ground substance)?
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Correct Fibroblasts
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What is the name of the bond that holds the two DNA strands together and is responsible for forming secondary protein structures (alpha helices and pleated sheets)?
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Correct Hydrogen bonds
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What is a Karyotype?
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Correct An assembly of all chromsomes in chart form
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What name describes the slick, flattened cell shape seen in some epithelial tissue?
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Correct Squamous
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The bonds which form beyween hydrogen and either oxygen or nitrogen as a result of polar molecules are called:
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Correct Hydrogen bonds
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At what phase do chromosomes condense and arrange themselves along the centre of a cell?
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Metaphase
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Reactivity between atoms occurs when:
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Correct The outer electron shells are not full of electrons
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What is the name of the structure that holds two sister chromatids together prior to nuclear division?
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Centromere
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