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Mitosis
Mitosis

... • Plant cells – Cell plate forms • Vesicles collect in the middle until fuse with plasma membrane ...
Biochemistry Presentation Notes Pre-AP 14-15
Biochemistry Presentation Notes Pre-AP 14-15

... structure to plant cells (fiber) most abundant organic chemical on earth ...
Hillcrest High School 2010 Living Environment Regents Review
Hillcrest High School 2010 Living Environment Regents Review

... 16. Identify the organelle labeled X in cell B. 17. Identify an organelle in cell A that is the site of autotrophic nutrition. 18. Which statement best describes these cells? (1) Cell B lacks vacuoles while cell A has them. (2) DNA would not be found in either cell A or cell B. (3) Both cell A and c ...
CELLS: ANIMAL CELLS 13 FEBRUARY 2013 Key Concepts
CELLS: ANIMAL CELLS 13 FEBRUARY 2013 Key Concepts

... DNA (Deoxyribonucleic Acid) contains all the information for cells to live, perform their functions and reproduce. Inside the nucleus is another organelle called the nucleolus. The nucleolus is responsible for making ribosomes. The circles on the surface of the nucleus are the nuclear pores. These a ...
Chapter 5: Homeostasis and Transport
Chapter 5: Homeostasis and Transport

... sodium-potassium pump, and vesicle transport, which includes endocytosis and exocytosis. The sodium-potassium pump is an active transport pump that exchanges sodium ions for potassium ions. Endocytosis is the process of capturing a substance or particle from outside the cell by engulfing it with the ...
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2-4 Looking Inside Cells

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... regardless of internal and external conditions • The process of maintaining the cells environment is called homeostasis ...
Cell Signaling and Receptors
Cell Signaling and Receptors

... To function in a biological system, cells communicate with others cells and respond to the external environment. The language of cells is in the form of chemicals = signals  There are two general types of signal transmission: 1. Intercellular (inside the cell) 2. Intracellular (between cells)  Cel ...
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... Genes=segments of DNA that contain information to make RNA or proteins Mutation=change in the base sequence of DNA ACG TGC ACG TGA ...
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... All cells arise from pre-existing cells (except for the first cell(s) ever). The genetic library (genome) of a cell is passed onto divided (sister) cells. Mitosis – this is the process of how one cell makes exact (almost) copies of itself. Mitosis results in two genetically identical (almost) daught ...
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Cells

... • Cell Membrane- surrounds the cell and controls movement of things into and out of the cell • Flagella- tail-like structure used for movement • Cilia- short hair-like structures used for ...
Intro - Ece.umd.edu - University of Maryland
Intro - Ece.umd.edu - University of Maryland

... The cell membrane is a fluid mosaic of lipids, proteins, and carbohydrates. FLUID- because the molecules move about ; like a liquid MOSIAC- because the proteins are scattered within the lipid layer ...
Diffusion
Diffusion

... The cell membrane is a fluid mosaic of lipids, proteins, and carbohydrates. FLUID- because the molecules move about ; like a liquid MOSIAC- because the proteins are scattered within the lipid layer ...
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... Compound: CHO (a.k.a. fat) Foods: butter, oils, margarine, lard, fried food Use: store energy, build cell membrane, chemical messengers Organelles: cell membrane, golgi bodies, vacuoles ...
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... ribosomes, organelles that are involved in the production of proteins. 12. Surrounding the nucleus are two membranes that form a structure called the nuclear envelope. The nuclear envelope contains many pores. Certain molecules, such as ribosomes and RNA, move into and out of the nucleus through the ...
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Levels of Organization - Petal School District
Levels of Organization - Petal School District

... Division of Labor Within multi-cellular organisms there is division of labor. Division of labor means that the work (labor) of keeping the organism alive is divided (division) among the different parts of the body. Each part has a job to do and as each part does its special job, it works in harmony ...
Prokaryotic Cell Eukaryotic Cell
Prokaryotic Cell Eukaryotic Cell

... composed of more than one cell) to survive. This genetic information is DNA! – Eukaryotes have separated this information from the rest of the cell with a special membrane bound organelle called a nucleus. (Eukaryote means “having a true nucleus”.) – Prokaryotes do NOT have this nucleus and their ge ...
Biology Unit One Exam Review
Biology Unit One Exam Review

Cell Structure Section 2 The Framework of the Cell
Cell Structure Section 2 The Framework of the Cell

... • Some proteins that a cell manufactures are needed outside the cell that makes them. • Proteins that are sent outside the cell are packaged in vesicles. Vesicles are small, membrane-bound sacs that enclose the proteins and keep them separate from the rest of the cytoplasm. • The endoplasmic reticul ...
Cell Transport Notes
Cell Transport Notes

... NO… because particles are in constant motion When the # of particles is equal on both sides of the membrane then equilibrium is reached When particles reach equilibrium the rate of diffusion is equal across the membrane Membrane ...
Macromolecules and Enzymes
Macromolecules and Enzymes

... Effect of temperature and pH • The temperature and pH must be in check for an enzyme to be used • Sometimes that can be too high • Sometimes that can be too low • When the circumstances are too high or too low, nothing happens • When the circumstances are just right, enzymes go to work and the subs ...
Biology
Biology

... What is living? Biodiversity; Need for classification; three domains of life; taxonomy and systematics; concept of species and taxonomical hierarchy; binomial nomenclature; tools for study of taxonomy-museums, zoological parks, herbaria, botanical gardens. Chapter-2: Biological Classification Five k ...
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Endomembrane system

The endomembrane system is composed of the different membranes that are suspended in the cytoplasm within a eukaryotic cell. These membranes divide the cell into functional and structural compartments, or organelles. In eukaryotes the organelles of the endomembrane system include: the nuclear membrane, the endoplasmic reticulum, the Golgi apparatus, lysosomes, vesicles, endosomes and the cell membrane. The system is defined more accurately as the set of membranes that form a single functional and developmental unit, either being connected directly, or exchanging material through vesicle transport. Importantly, the endomembrane system does not include the membranes of mitochondria or chloroplasts.The nuclear membrane contains two lipid bilayers that encompass the contents of the nucleus. The endoplasmic reticulum (ER) is a synthesis and transport organelle that branches into the cytoplasm in plant and animal cells. The Golgi apparatus is a series of multiple compartments where molecules are packaged for delivery to other cell components or for secretion from the cell. Vacuoles, which are found in both plant and animal cells (though much bigger in plant cells), are responsible for maintaining the shape and structure of the cell as well as storing waste products. A vesicle is a relatively small, membrane-enclosed sac that stores or transports substances. The cell membrane, is a protective barrier that regulates what enters and leaves the cell. There is also an organelle known as the Spitzenkörper that is only found in fungi, and is connected with hyphal tip growth.In prokaryotes endomembranes are rare, although in many photosynthetic bacteria the plasma membrane is highly folded and most of the cell cytoplasm is filled with layers of light-gathering membrane. These light-gathering membranes may even form enclosed structures called chlorosomes in green sulfur bacteria.The organelles of the endomembrane system are related through direct contact or by the transfer of membrane segments as vesicles. Despite these relationships, the various membranes are not identical in structure and function. The thickness, molecular composition, and metabolic behavior of a membrane are not fixed, they may be modified several times during the membrane's life. One unifying characteristic the membranes share is a lipid bilayer, with proteins attached to either side or traversing them.
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