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Answer with ( √ ) or ( × ) in the following sentences
Answer with ( √ ) or ( × ) in the following sentences

... 1- Central vacuoles get rid of some poisonous metabolites like nicotine and alkaloids from the cytoplasm and store some pigments like anthocyanin.( ) 2- Smooth endoplasmic reticulum specializes in metabolism of fat and carbohydrates.( ) 3- Ribosomes are composed of large and small subunit that fit t ...
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... • Cells need to get molecules into and out of the cell in order to live. • They need to get “food” molecules in and “waste” molecules out. ...
lecture 3 - xraykamarul
lecture 3 - xraykamarul

... Law of Bergonie’ and Tribondeau  It states that the radiosensitivity of cell is directly proportional to their reproductive activity and inversely proportional to their degree of differentiation.  Cells most active in reproducing themselves and cells not fully mature will be most harmed by radiat ...
Concept Checks: Chapter 6- A Tour of the Cell Concept Check 6.1 1
Concept Checks: Chapter 6- A Tour of the Cell Concept Check 6.1 1

... 2. Light microscopes magnify <1000x. SEM is used to study the surface of cells. TEM is used to look through cells. EM’s magnify about 1 million times. 3. Similar: nucleus, plasma membrane, mitochondria Differences: cells walls, chloroplasts 4. Prokaryotic cells have no nucleus and lack most organell ...
Cell Structures and Functions
Cell Structures and Functions

... Eukaryotic Cell Organelles and Function Cell Membrane ...
Methods of Transport Across a Cell Membrane
Methods of Transport Across a Cell Membrane

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Concept Checks: Chapter 6- A Tour of the Cell Concept Check 6.1 1
Concept Checks: Chapter 6- A Tour of the Cell Concept Check 6.1 1

... 2. Light microscopes magnify <1000x. SEM is used to study the surface of cells. TEM is used to look through cells. EM’s magnify about 1 million times. 3. Similar: nucleus, plasma membrane, mitochondria Differences: cells walls, chloroplasts 4. Prokaryotic cells have no nucleus and lack most organell ...
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Vocabulario y resumen de la sección
Vocabulario y resumen de la sección

... passive transport: the movement of substances across a cell membrane without the use of energy by the cell active transport: the movement of substances across the cell membrane that requires the cell to use energy endocytosis: the process by which a cell membrane surrounds a particle and encloses th ...
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Morphology of the Cell Wall

... (in the form of organized microfibrils) – about 40% to 50% of the plant – a complex carbohydrate made up of several thousand glucose molecules linked end to end. In addition, the cell wall contains two groups of branched polysaccharides, the pectins and cross-linking glycans. Organized into a networ ...
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Ch6_objectives

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... • DNA – template for synthesis of proteins • DNA – genetic information about sequence of amino acids needed for a protein. • Mitochondria generate the energy [ATP] in a cell from glucose. • Skeletal muscle has more mitochondria than epithelial cells as the muscle needs lots of ATP to function, so ne ...
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File - Flynn Biology

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Cell Transport - Teacher Pages
Cell Transport - Teacher Pages

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Plant cells - TeacherWeb
Plant cells - TeacherWeb

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Plant Systems - My Teacher Pages
Plant Systems - My Teacher Pages

... What do animal cells look like? • Animal cells tend to be sphere or round shaped. • Animal cells have: -cell membrane to hold the cell together, -cytoplasm a watery gel inside the cell, -nucleus with a nuclear membrane, and -sometimes small vacuoles where food and chemicals are stored. ...
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05_Clicker_Questions

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Biochemistry - mrmitchellbiowiki

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Chapter 7: Cell Structure and Function

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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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