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42 Cards in this Set

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Carry out chemical activities needed to sustain life

Cells and Tissuse

Building blocks of all living things

Cells

Are group of cells that are similar in structure and function

Tissue

Three main regions

Plasma Membrane


Cytoplasm


Nucleus

Control center of the cell

The nucleus

Three regions of nucleus

Nuclear membrane


Nucleolus


Chromatin

Barrier of nucleus

Nuclear Membrane

Sites of ribosome production

Nucleoli

Composed of DNA and Proteins


Condensed to form chromosomes when the cell divides

Chromatin

Barrier for cell contents

Plasma membrane

Finger like projections that increase surface are for absorption

Microvilli

Material outside the nucleus and inside the membrane

Cytoplasms

Fluid that suspends other elements

Cytosol

Metabolic machinery of the cell

Organelles

Non-functioning of the cell

Inclusions

Made of protein and RNA


Sites of protein synthesis

Ribosomes

Attached to rough endoplasmic reticulum

What are the two types of ER

Rough Endoplasmic Reticulum


Smooth Endoplasmic Reticulum

Studded with ribosomes


Site where building materials of cellular membrane are formed

Rough endoplasmic reticulum

Functions in cholesterol synthesis and breakdown fat metabolism and detoxification of drugs

Smooth endoplasmic reticulum

Modifies and packages proteins

Golgi Apparatus

Contains enzymes that digest materials within the cell

Lysosomes

Membranous sacs of oxidase enzymes

Peroxisomes

Detoxify harmful substance


Break down free radicals

Powerhouse of the cell

Mitochondria

Network of protein structures that extend throughout the cytoplasm.

Cytoskeleton

Rod-shaped bodies make of microtubules

Centrioles

Direct formation of mitotic spindle during cell diversion

Not found in all cells

Cellular Projections

Used for movements

Movement of substance into and out of the cell

Membrane Transport

No energy is required

Passive Transport

The cell must provide metabolic energy

Active Transport

Homogeneous mixture of two or more components

Solution

Dissolving medium

Solvent

Smaller quantities within a solution

Solutes

Nucleoplasm and cytosol

Intracellular Fluid

Fluid on the exterior of the cell

Interstitial Fluid

The plasma membrane allows some materials to pass while excluding others

Seductive permeability

Particles tend to distribute themselves evenly within solution

Diffusion

Unassisted process

Simple Diffusion

Simple diffusion of water

Osmosis

Substance require a protein carrier for passive transport

Facilitated diffusion

Water and solutes are forced through a membrane by fluid, hydrostatic pressure

Filtration

Amino acids, some sugars and ions are transported by solute pumps

Solute Pumping

Moves materials out of the cell


Material is carried in a membranous vesicle

Exocytosis