IB Biology HL1 - Cells and Microscopy

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created by Alana Lamountry, Period 4

22 Terms

1

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Cell

Smallest unit of life; everything that is living is made out of cells.

<p>Smallest unit of life; everything that is living is made out of cells.</p>
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2

Cell theory

Organisms are made out of cells, and those cells come from other cells.

<p>Organisms are made out of cells, and those cells come from other cells.</p>
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3

Cryogenic electron microscopy

Technique where samples are frozen to cryogenic temperatures for preservation during electron microscopy.

<p>Technique where samples are frozen to cryogenic temperatures for preservation during electron microscopy.</p>
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4

Cytoplasm

Gel-like substance inside cells containing organelles, cytoskeleton, and other structures.

<p>Gel-like substance inside cells containing organelles, cytoskeleton, and other structures.</p>
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5

Deductive reasoning

Process of creating a conclusion based on given evidence.

<p>Process of creating a conclusion based on given evidence.</p>
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6

DNA

Deoxyribonucleic acid found in the cell's nucleus, carrying genetic information about the organism's development and functions.

<p>Deoxyribonucleic acid found in the cell's nucleus, carrying genetic information about the organism's development and functions.</p>
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7

Electron microscope (MCSP)

Instrument that uses electrons to magnify tiny objects, such as sub-cellular structures.

<p>Instrument that uses electrons to magnify tiny objects, such as sub-cellular structures.</p>
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8

Field of View

Maximum area visible through the lenses of a microscope.

<p>Maximum area visible through the lenses of a microscope.</p>
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9

Freeze-fracture

Technique to visualize structures of biological samples that have been frozen and broken into small pieces.

<p>Technique to visualize structures of biological samples that have been frozen and broken into small pieces.</p>
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10

Immunofluorescence

Method where a fluorescent tag is attached to antibodies that bind to antigens, allowing visualization of target molecules.

<p>Method where a fluorescent tag is attached to antibodies that bind to antigens, allowing visualization of target molecules.</p>
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11

Inductive reasoning

Process of forming a theory or conclusion based on related observations.

<p>Process of forming a theory or conclusion based on related observations.</p>
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12

Light microscope

Microscope that uses light to view specimens, with magnification levels of 400-1500x.

<p>Microscope that uses light to view specimens, with magnification levels of 400-1500x.</p>
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13

Magnification

Comparison of the size of an image to its actual size; for example, 100x magnification means the image is 100 times larger.

<p>Comparison of the size of an image to its actual size; for example, 100x magnification means the image is 100 times larger.</p>
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14

Multicellular

Organism composed of more than one cell.

<p>Organism composed of more than one cell.</p>
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15

Objective lens

Lens closest to the slide that holds the specimen being observed.

<p>Lens closest to the slide that holds the specimen being observed.</p>
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16

Ocular lens

Part of the microscope that magnifies the image for viewing.

<p>Part of the microscope that magnifies the image for viewing.</p>
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17

Plasma membrane

Thin, sometimes permeable layer of phospholipid and protein surrounding the cell, regulating the movement of molecules and ions.

<p>Thin, sometimes permeable layer of phospholipid and protein surrounding the cell, regulating the movement of molecules and ions.</p>
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18

Resolution

Ability of a microscope to distinguish fine details of a specimen.

<p>Ability of a microscope to distinguish fine details of a specimen.</p>
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19

Ribosome

Sub-cellular structure where protein synthesis occurs.

<p>Sub-cellular structure where protein synthesis occurs.</p>
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20

Scale

Range of sizes of objects detectable using microscopes.

<p>Range of sizes of objects detectable using microscopes.</p>
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21

Unicellular

Organism made up of a single cell.

<p>Organism made up of a single cell.</p>
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22

Wet mount

Technique where a specimen is suspended in a drop of water for observation.

<p>Technique where a specimen is suspended in a drop of water for observation.</p>
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