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Reproduction Introduction Cell Theory: - All living ORGANISMS are composed of one or more CELLS . - CELLS are the basic unit of STRUCTURE and FUNCTION in all living organisms. - All CELLS come from PREVIOUSLY EXISTING cells. - The activity of an entire organism depends on the total activity of its INDEPENDENT cells.

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Page 1: 1 - Reproduction Intropalmer837.weebly.com/.../1_-_reproduction_intro.pdf · Chromosome-Made of DNA.Consists of many GENES. Cell Membrane-SEPARATES the contents of the cell from its

Reproduction Introduction

Cell Theory:- All living ORGANISMS are composed of one or more CELLS.- CELLS are the basic unit of STRUCTURE and FUNCTION in all living

organisms.- All CELLS come from PREVIOUSLY EXISTING cells.- The activity of an entire organism depends on the total activity of its

INDEPENDENT cells.

Page 2: 1 - Reproduction Intropalmer837.weebly.com/.../1_-_reproduction_intro.pdf · Chromosome-Made of DNA.Consists of many GENES. Cell Membrane-SEPARATES the contents of the cell from its

The Cell – The basic unit of lifeEach cell contains numerous membrane-bound ORGANELLES, which are specialized structures that perform specific functions in the cell.

These are the parts of the cell that we should know about:

Nucleus - The organelle that contains DNA. - Controls all cell FUNCTIONS and

GROWTH.

Nuclear Membrane - The membrane which OUTLINES the

nucleus.

DNA (Deoxyribonucleic Acid) - Contains the GENETIC CODE for the

cell.

Page 3: 1 - Reproduction Intropalmer837.weebly.com/.../1_-_reproduction_intro.pdf · Chromosome-Made of DNA.Consists of many GENES. Cell Membrane-SEPARATES the contents of the cell from its

Chromosome- Made of DNA. Consists of many GENES.

Cell Membrane- SEPARATES the contents of the cell from its surroundings, controls

the MOVEMENT of materials in and out of the cell.

Cell Wall- A RIGID BARRIER which lies outside of the cell MEMBRANE of

PLANTS, FUNGI and BACTERIA. Used for STRUCTURE (Gives shape to organism).

Page 4: 1 - Reproduction Intropalmer837.weebly.com/.../1_-_reproduction_intro.pdf · Chromosome-Made of DNA.Consists of many GENES. Cell Membrane-SEPARATES the contents of the cell from its

Defining Characteristics of an Animal Cell:1.Contains a CELL MEMBRANE ONLY2.Contains CENTRIOLES

! used in MITOSIS (cellular reproduction)

Defining Characteristics of a Plant Cell:1.Contains a CELL WALL2.Contains CHLOROPLASTS (Photosynthesis)

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Cell Membrane Notes · AP Biology Cell membrane defines cell Cell membrane separates living cell from aqueous environment thin barrier = 8nm thick Controls traffic in & out of the

Cell Membranes and Osmosis. - Cell membrane - Controls what enters and leaves cell What separates a cell from its surroundings?

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1.4 Cell Membrane - Holy Family Catholic Schoolsteachers.holyfamilydbq.org/.../files/2010/08/2011-Cell-Membrane.pdf · Cell membrane defines cell •Cell membrane separates cell from

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Cell Parts › userfiles › 251 › Classes...Cell Membrane This is present in all cells. It is the outside layer that separates the cell from the outside. Cell Membrane-controls

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