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The Cell Theory Slide 1: Before microscopes were invented, people believed that diseases were caused by _____ and ____________ _____________. As scientists began using microscopes, they quickly realized they were entering a new world–one of ____________. ____________ enabled scientists to _________ and study - _______, the basic units of living organisms. Slide 2: __________ ________ was an English scientist who lived at the same time as van ___________ (the first person to use a microscope). Hooke used a ________ ___________ microscope to study cork, the dead part of oak tree bark. Hooke named the compartments he saw in the cork ________. He and some other scientists concluded that ___________________________________________________________________________________. Slide 3: Three parts of the Cell Theory are: 1) 2) 3) Slide 4: Cells that do not contain internal membrane-bound structures are called ___________ cells. The cells of most unicellular organisms such as ___________ do not have __________ ____________ structures and are therefore called prokaryotes. Slide 5: Cells containing _________ ___________ structures are called ___________ cells. Most of the multi-cellular plants and animals we know are made up of cells containing membrane-bound structures and are therefore called _____________. Slide 6: The membrane-bound structures within eukaryotic cells are called ____________. Each organelle has a specific function that contributes to cell ____________. Slide 7: All living cells must maintain a ___________ regardless of internal and external conditions. This balance is ______________. Survival depends on the cell’s ability to maintain the proper conditions within itself. Slide 8: The ______________is the boundary between the cell and its environment. Slide 9: The Plasma Membrane allows a steady supply of _________, amino acids, and _________ to come into the cell no matter what the external conditions are. It also ___________ excess amounts of these nutrients when levels get so high that they are harmful. Lastly, the plasma membrane allows _________ and other products to __________ the cell. Slide 10: By controlling what goes in and out of the cell, the plasma membrane maintains ____________. The plasma membrane is able to maintain homeostasis because it is ____________ ____________ , it only allows specific molecules in and out. Slide 12: The plasma membrane is composed of two layers of phospholipids back-to-back (or lipid-to-lipid). ____________ are lipids with a phosphate attached to them. Slide 13: The ____________ ____________ model describes the plasma membrane as a flexible boundary of a cell. The phospholipids move within the membrane. Slide 14: ____________ ____________allow needed substances or waste materials to move through the plasma membrane. Slide 15: The ____________ ____________is a fairly rigid structure located outside the plasma membrane that provides additional ____________and ____________. Slide 16: The __________; AKA “The Boss” Label the parts. Slide 17: The ____________ ____________is an organelle that is suspended in the cytoplasm and is the site of cellular ____________reactions. ER + Ribosomes = ____________ ____________ Slide 18: The ____________ packages cellular products into a ____________and sends them out of the cell. Slide 19: ____________are membrane-bound spaces used for temporary ____________of materials. What is the difference between the vacuole in a plant cell compared to an animal cell? Slide 20: ____________are organelles that contain ____________enzymes. They ____________excess or worn out organelles, food particles, and engulfed viruses or bacteria. ____________=to break apart. Slide 21: ____________are cell organelles that capture light energy and produce ____________to store for a later time. The chloroplasts belongs to a group of plant organelles called ____________, which are used for storage. Chloroplasts contain a green pigment called ____________. Chlorophyll traps light energy and gives leaves and stems their green color. Slide 22: ____________are membrane-bound organelles in plant and animal cells that ____________energy for the cell. A mitochondria has a highly ____________inner membrane. Energy storing molecules (ATP) are produced on inner folds Slide 23: Cells have a support structure called the ____________within the cytoplasm. The cytoskeleton is composed of ____________and microfilaments. Microtubules are thin, hollow cylinders made of protein and ____________are thin solid protein fibers. Slide 24: Some cell surfaces have cilia and flagella, which are structures that aid in ____________or feeding. Cilia and flagella can be distinguished by their structure and by the nature of their action. Slide 25: ____________are short, numerous, hair-like projections that move in a wavelike motion. ____________are long projections that move in a whip-like motion. Flagella and cilia are the major means of locomotion in ____________organisms.
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