SOS Biology Unit 3 Quiz 2

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lysosomes

contain digestive enzymes

chromosomes

contain genes for traits

hypotonic

high concentration of water, low concentration of salt or saline

animal cell

no cell wall, only plasma membrane: no large vacuole, only small ones: no chlorophyll or chloroplasts: cleavage furrow plus centrioles in cell division:

plastids

store foods or pigments

endoplasmic reticulum

tubes serving as transportation channels

isotonic

when the concentration of two solutions is the same

semipermeable

membranes that allow some substances through but not others

mitochondria

A provider of energy for a cell. It breaks down glucose for energy.

meiosis

Cell division that produces reproductive cells in sexually reproducing organisms

osmosis

Diffusion of molecules through a semipermeable membrane from a place of higher concentration to a place of lower concentration until the concentration on both sides is equal.

active transport

Molecules move from low concentration to high concentration builds higher concentrations

cell theory

basic unit of life is the cell

plant cell

cell plate and no centrioles in cell division: presence of cell wall plus plasma membrane: large hypertonic vacuole: chloroplasts and plastids:

5 transport mechanisms of a cell

facilitated diffusion passive diffusion active transport pinocytosis phagocytosis

centrioles

form fibers to separate chromosomes evenly

proteins

have polar and non polar ends of their membrane

plasma membrane

made of phospholipids

mitochondrion

production of needed energy

ribosome

production of protein

nucleolus

production of ribosomes

Golgi bodies

production of secretions

Glycosis creates

pyruvic acid


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