Ib Biology Hl Terms

Front 1

flagellum

Back 1

tail-like structure used for locomotion

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prokaryote

Back 2

lacks a nucleus and membrane bound organelles
generally unicellular
contains bacteria and archea

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eukaryote

Back 3

contains membrane bound organelles and a nucleus
generally multicellular

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microtubules

Back 4

used to move chromosomes, vesicles, granules, mitochondria
linear polymers of a protein

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mesosomes

Back 5

complex, localized foldings of cell membranes

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saprotroph

Back 6

organism that feeds on the excrement or dead tissues of other organisms

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cell plate

Back 7

disc-like structure that separates the two sets of chromosomes during meoisis, and helps to form the cell wall between the daughter cells

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centriole

Back 8

controls the movement of chromosomes during mitosis by organizing the spindle fibers

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polygenetic

Back 9

a trait controlled by more than one gene, frequently by many, 6 is common

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synovial fluid

Back 10

fluid that lubricates a joint

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diffusion

Back 11

passive movement of molecules along a concentration gradient

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erythrocytes

Back 12

red blood cell

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gibberellin

Back 13

hormone that promotes cell division and elongation
lateral growth in plants

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mesophytic

Back 14

land plant in an average amount of water

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nucleoid

Back 15

part of a prokaryotic cell with genetic material

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leucocyte

Back 16

immune system cells that come from bone marrow, white blood cells

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lysosome

Back 17

organelles with digestive enzymes used to remove viruses and bacteria, and worn-out cell parts