Kategorier: Alle - mitochondria - nucleus

av Drew Karaim 5 år siden

204

Biological Molecules: Key Terms

Utilizing various imaging and analysis techniques such as X-ray crystallography and electron microscopy allows for the detailed examination of cellular structures and processes. X-ray crystallography uses X-rays with wavelengths comparable to the spacing between atoms in a crystal to generate a pattern that computers interpret into a model of the substance.

Biological Molecules: Key Terms

Cell tagging

a method of this involves adding a coloured or fluorescent chemical to the cell which binds to certain function groups highlighting specific areas of the cell

follows individual molecules in a cell

Light microscope

Uses light

can view objects as small as 200nm

Imaging technologies

Cell Organelles

Only Plant cell

Cell Wall

Tough outer shell of cell, provides support

micrometer

a unit of measure 0.001 the size of a mm

cytoskeleton

Acts as the cell's highway for the transport of cargo via motor proteins

Cytoskeleton gives the cell its shape and helps organize during cell division

Golgi apparatus

responsible for tagging protein for propper delivery within the cell

endoplasmic reticulum

preforms chemical reactions and stores important enzymes. Also packs proteins and fats to be sent to the Golgi apparatus

Make up about half of the cell membrane

ribosome

particle consisting of RNA and protein

found in cytoplasm

Lysosome

proteins are transported to the lysosome to be degraded

Mitochondia

responsible for generating energy for the cell using sugar and oxgen

contain their own DNA

chloroplast

give plants their green colour

use energy from the sun to convert co2 and water into sugar

vacuole

Stores nutrients, breaks down waste, helps cell grow

Cell Membrane

allows important molecules to pass in and out of the cell while preventing unwanted molecules from entering the cell

Nucleus

Stores the cell's DNA for replication

X-rayCrystallography

X rays with wavelengths the size of the space between atoms, directed though crystal of substance being examined creating a pattern that a computer reads and creates a model of substance.

electron microscope

a microscope that uses a beam of accelerated electrons as a source of illumination

zoom range of 100um to 0.1nm

Biological Molecules: Key Terms