Biology Section 7.3 Vocab - Plasma Membrane

Front 1

cell wall

Back 1

The cell wall is a fairly rigid structure located outside the plasma membrane that provides additional support and protection.

Front 2

chromatin (KROH muh tihn)

Back 2

Long strands of DNA found in the eukaryotic cell nucleus; condense to form chromosomes.

Front 3

nucleolus

Back 3

organelle in eukaryotic cell nucleus that produces ribosomes.

Front 4

ribosome

Back 4

Are the sites where the cell produces proteins according to the directions of DNA.

Front 5

cytoplasm

Back 5

Is the clear, gelatinous fluid inside a cell.

Front 6

endoplasmic reticulum

Back 6

Is the site of cellular chemical reactions.

Front 7

Golgi apparatus

Back 7

Organelle in eukaryotic cells that proteins are transferred to after they are made. It is a flattened stack of tubular membranes that modifies proteins. Sorts and packs proteins and sends them to their appropriate destinations.

Front 8

vacuole

Back 8

membrane-bound space in the cytoplasm of cells used fo the temporary storage of materials.

Front 9

lysosome

Back 9

Organelles that contain digestive enzymes; digest excess or worn out organelles, food particles and engulfed viruses or bacteria.

Front 10

chloroplast

Back 10

Chlorophyll-containing organelles found in the cells of green plants and some protists; capture light energy and converted it to chemical energy.

Front 11

plastid

Back 11

group of plant organelles that are used for storage of starches, lipids, or pigments.

Front 12

chlorophyll

Back 12

light-absorbing pigment in plants and some protist that requirede for photosynthesis;absorbs most wavelenghts of light except for green.

Front 13

mitochondria

Back 13

Eukaryotic membrane-bound organelles that transform energy stored in food molecules; has a highly folded inner membrane that produces energy-storing molecules.

Front 14

cytoskeleton

Back 14

cellular framework found within the cytoplasm composed of microtubules and microfilaments.

Front 15

microtubule

Back 15

Thin, hollow cylinders made of protein that provide structural support for eukaryotic cells.

Front 16

microfilament

Back 16

thin, solid protein fibers that provide structural support for eukaryotic cells.

Front 17

cilia

Back 17

short, numerous, hairlike projections composed of pairs of microtubules: frequently aid in locomotion.

Front 18

flagella

Back 18

Long projections composed of microtubules; found on some cell surfaces;they help propel cells and organisms by a whiplike motion.