Homeostasis and Cell Function/Structure Remember to wait for the vocabulary word to pop up! Can you guess it before it comes up? The Living Environment.

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Presentation transcript:

Homeostasis and Cell Function/Structure Remember to wait for the vocabulary word to pop up! Can you guess it before it comes up? The Living Environment - NYS 1.2 – The student should be able to describe and explain the structures and functions of the human body at different organizational levels (for example, systems, tissues, cells, organelles) PB 09

Homeostasis The ability of an organism to maintain a stable internal environment even when the external environment changes

Cell The basic unit of structure and function that makes up all organisms

Cell Membrane The thin boundary between the cell and its environment

Diffusion The movement of molecules from areas of high concentration to areas of low concentration en.svg/626px-Scheme_simple_diffusion_in_cell_membrane-en.svg.png High Low

Osmosis Movement of water through a selectively permeable membrane, high concentration to low concentration High Low

Active Transport The process by which cells use energy to transport molecules through the cell membrane from areas of low concentration to areas of high concentration

Chloroplast The green organelle that contains chlorophyll, where photosynthesis takes place

Cytoplasm The jellylike substance that is between the cell membrane and the nucleus, carry out the transport of material ?

Nucleus A large structure within a cell that controls the cell’s metabolism and stores genetic information (chromosomes and DNA) ?

Ribosome Tiny structure in the cell that is the site of protein production proteinbig.jpg

Mitochondrion Pod shaped organelles that contain enzymes used to extract energy from nutrients Nutrients Energy

Vacuole Storage sacs within the cytoplasm of a cell that may contain either wastes or useful materials (food or water) e/Plant_cell_structure_svg_vacuole.svg/649px- Plant_cell_structure_svg_vacuole.svg.png Found in m.gif

Lysosome A specialized vacuole, filled with enzymes needed to break down (digest) certain material in the cell

Nucleolus A small organelle, located in the nucleus, where assembly of ribosomes begins

Endoplasmic Reticulum Internal membrane system in cells Houses ribosomes Accepts manufactured proteins Transports proteins to plasma membrane

Golgi Apparatus Stack of membranes in the cell where enzymes attach carbohydrates and lipids to proteins carbohydrate lipid enzyme

Centriole Cylindrical structure, located in the cytoplasm of the animal cell. Appears to function in cell division

Cell Wall Strong layer around the cell membrane primarily in plant and algae cells. Protects the cell

Cell Respiration The process in which nutrients are broken apart, releasing the chemical energy stored in them resp/Overview.gif Chemical energy

Amino Acids Any one of several building blocks of proteins

Enzymes Proteins that speed up the rate of chemical reactions in living things ??

The End!