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3A Test
Studying flash cards for 4A test. BBS Biology class.
48
Biology
10th Grade
11/01/2011

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Term
Cytology
Definition
The Study of Cells
Term
Robert Hooke
Definition
Named The Cell
Term
Theodore Schwann
Definition
Realized the Neiclei of the Cell.
Term
Cell
Definition
Smallest unit of a living thing.
Term
Multicellular
Definition
An organism made of many cells.
Term
Tissues
Definition
A group of cells that preform a life function and an organ.
Term
System
Definition
A group of organs that perform a life function.
Term
Unicellular
Definition
A one celled organism.
Term
Colony
Definition
A group of cells living together that could live apart. Fungi and Algae.
Term
Absorbtion
Definition
Getting stuff in.
Term
Digestion
Definition
Breaking stuff down.
Term
Synthesis
Definition
Putting stuff together.
Term
Respiration
Definition
Releasing Energy.
Term
Movement
Definition
Going places.
Term
Irritability
Definition
Reacting to the surrounding environment.
Term
Excretion
Definition
Removing Soluble things.
Term
Egestion
Definition
Removing non-soluable things.
Term
Secretion
Definition
Releasing cellular products.
Term
Homeostasis
Definition
Staying alive.
Term
Reproduction
Definition
Making more.
Term
Prokaryotic Cells
Definition
Primitive nucleus. No nucleus and no membrane-bound organelles.
Term
Eukarotic
Definition
Has a true nucleus. Have a nucleus
Have membrane-bound organelles
Term
Eungelion
Definition
means the true message.
Good tidings
The glad tidings of salvation through Christ.
the gospel
Term
Plasma Membrane
Definition
Also called a cell membrane. Made of Phospholipid bilayer
Has imbedded proteins.


Functions: Transport, receptors, enzymes, structural, channels.
Term
Cell Wall
Definition
A rigid structure outside the cell Secreted by the cell membrane.
Secreted by the cell membrane in certain cells. Found around plants, algae, fungi, and other cells.
Not around animal cells.
The primary function of a cell wall is Support.
Term
Primary Cell Wall
Definition
First cell wall to be laid down.
Softer than secondary
70% water
10-20% cellulose.
Pectin- Gel-like substance to keep materials together.
Term
Secondary Cell Wall
Definition
Laid down inside primary
Harder
Less water
More cellulose
Pectin and lignin, a hardening substance
Have pores
Middle lamella: between plant cells; mostly pectin and water.
Term
Capsule
Definition
Also called a sheath or slime coat.
Made of cellular secretions
Primary function is protection; helps prevent water loss, especially in bacteria and algae
Term
Hemidesmosome
Definition
Attaches intermediate filaments to base membrane.
Term
Desmosome
Definition
Binds intermediate filaments between adjacent cells- even stronger- skin.
Term
Adherens Junction
Definition
Binds together microfilaments between adjacent cells; add strength.
Term
Tight Junction
Definition
Provides sealed barrier.
Term
Gap Junction
Definition
Allows the passage of ions and smaller molecules between cells. This is found in the brain and nervous system.
Term
Plasmodesmata
Definition
Connections between plant cells.
Term
Strength of a cell membrane
Definition
larger volume, weaker membrane. Large cells have problems. Communication is easier if cells are smaller.
Term
Cytoplasm
Definition
Everything inside the cell except the nucleus
Term
Cytoplasmic Matrix
Definition
(cytosol fluid part of the cytoplasm. It contains the cytoskeleton, which gives it structure.
Term
Cytoplasmic Streaming
Definition
Evidence of the existence of the cytoplasmic matrix. The movement of organelles around the inside of the cytoplasm.
Term
Mitochondria
Definition
The powerhouse of the cell. This produces the energy. Site of cellular resspiration. Contain mitochondrial DNA.
Term
Ribosomes
Definition
Theses are the sites of protein synthesis. They are non-membrane bound. They are found in both pro- and eukaryotic cells.
Term
Endoplasmic Reticulum
Definition
Folded internal membranes. Compartmentalizes the cell and creates internal channels. Rough ER has ribosomes attached to it. It is involved in making and transporting proteins. Smooth Er does not have ribosomes it is more tube-like. The functions of the smooth ER is the making of lipids and carbohydrates. It is also involved in detoxification (or breaking down poisons).
Term
Golgi Apparatus
Definition
Sacs that processes and package the cellular product. It goes from the ER to the raw product to the Golgi to secretion vesicle to final product release.
Term
Lysosimes
Definition
Sacs of hydrolytic enzymes. Functions cellular digestion, programmed destruction which means the cells due at a certain time autophagy is the recycling of cellular parts.
Term
Cytoskeleton
Definition
The Internal structure inside the cell. It supports the cell and gives it shape.
Term
Centrosome
Definition
A region near the nucleus that produces microtubules for the cytoskeleton.
Term
Microtubules
Definition
Tube-like protein structures. They can be connected to mae long structures;can be broken up.
Term
Intermediate Filaments
Definition
Medium sized; cable-like they are important in cell strength.
Term
Centrioles
Definition
Bunches of microtubules outside the nucleus; organize cell division.
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