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MITOSIS
MITOSIS

... Mitosis - Telophase The chromosomes have finished their migration to the poles. The spindle has broken down and disappeared. The cell membrane pinches in (forms a cleavage furrow) along the center creating two separate cells . At this time, the chromosomes uncoil and become less visible (as they ar ...
Chapter 6 lecture notes
Chapter 6 lecture notes

... The Golgi apparatus is a dynamic structure. The Golgi manufactures and refines its products in stages, with different cisternae between the cis and trans regions containing unique teams of enzymes. According to the cisternal maturation model, the cisternae of the Golgi progress from the cis to the t ...
Worksheet Section 2
Worksheet Section 2

... Complete this worksheet after you finish reading the section “Exchange with the Environment.” ...
the fundamental unit of life
the fundamental unit of life

... They occur free in the cytoplasm as well as attached to the outer surface of the rough ER. They are found in both prokaryotic and eukaryotic cells. They are the sites of protein synthesis and therefore called the protein factories of cells. g. Golgi Apparatus: is found in animal cells. Golgi apparat ...
Cell interactions
Cell interactions

... in various organelles. Organelles in all mammal cells include the plasma cell membrane, mitochondria, Golgi apparatus, cytoplasm, lysosome, cytoskeleton, nucleus, and smooth and rough endoplasmic reticulum MSE-536 ...
The Cell Membrane
The Cell Membrane

... specific channels allow specific material across cell membrane ...
Laboratory 4: Cell Structure and Function Part 1: Eukaryotic Cells
Laboratory 4: Cell Structure and Function Part 1: Eukaryotic Cells

... All cells exchange materials with their immediate environment and therefore have a plasma membrane that controls which substances are exchanged by allowing some materials to pass through it while slowing or stopping others. The cytoplasm is protected from the environment, yet still can exchange mate ...
Animal and plant cells have a nucleus, cytoplasm, and a cell
Animal and plant cells have a nucleus, cytoplasm, and a cell

... 1. Photosynthesis takes place in [only animal, only plant, both animal and plant] cells. 2. Photosynthesis takes place in the [cytoplasm, chromosome, chloroplast, mitochondria]. 3. Circle the chemical reaction for photosynthesis: glucose + oxygen  carbon dioxide + water + energy water + carbon diox ...
sample exam questions
sample exam questions

... Is primarily used by cells that decompose citric acid in the environment as a nutrient Is particularly important in photosynthesis Functions in cells to produce citric acid that is then incorporated into new cellular material (proteins, nucleic acids, lipids, peptidoglycan, etc.) Reduces 4 NAD and 1 ...
partone7th - PAMS-Doyle
partone7th - PAMS-Doyle

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John MacDonald:  Chemistry & Biochemistry
John MacDonald: Chemistry & Biochemistry

... Characterizing Photoswitches to Mimic Nerve Cell Repolarization It has been shown that a quaternary ammonium structure (nitrogen bonded to four carbons), such as tetra-ethyl ammonium iodide, can block a potassium channel and therefore inhibit the depolarization of a nerve cell. By attaching this qua ...
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SNC2L BIOLOGY - loreescience.ca
SNC2L BIOLOGY - loreescience.ca

... Explain why molecules move from one  area to another  Identify factors that will speed up or  slow down diffusion  Explain the difference between  diffusion and osmosis  Give an example of where diffusion  and osmosis occur in the body  ...
EOC in class Study Guide
EOC in class Study Guide

... Darwin’s concept of natural selection might be used to describe this situation? a. acquired characteristics b. reproductive isolation c. survival of the fittest d. descent with modification ____ 23. The number and location of bones of many fossil vertebrates are similar to those in living vertebrate ...
Cells Alive * Internet Lesson Use this website to
Cells Alive * Internet Lesson Use this website to

... 23. Draw and label a magnified ribosome in detail. 24. What is a chloroplast? _______________________ 25. What is a cell wall? _________________________ 26. Which type of cell has a chloroplast and a cell wall, a plant or animal? _____________________________ ...
Modeling the Cell Cycle
Modeling the Cell Cycle

... your hair follicle cells that are dividing at this very moment inside of your body. It requires a good amount of energy and resources to produce new cells, so why must your body do this? Well, you must replace dead and dying cells. Plus, as your cells live they grow larger, as the volume of the cell ...
Cell Quiz/Test
Cell Quiz/Test

... 7. An organic molecule used for energy (includes sugars and starches) 8. When molecules spread out to reach a balance (equilibrium) 9. The pigment in plant cells (inside the choloroplast) that traps the energy in sunlight 10. In the ribosomes of a cell chemical reactions join amino acids to form thi ...
Flyer - swissnex Boston
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... exploration: When you feel it and look more closely at its constituent parts, you find out a lot of details about the various parts and the cell as a whole. Individual cell structures are shown somewhat larger or smaller than other elements either for practical purposes or for didactic reasons. ...
Micrasterias II - PROTISTEN.DE
Micrasterias II - PROTISTEN.DE

... Abb. 3: Cross section of a dictyosome of Micrasterias denticulata. In addition the picture shows a cut through a mitochondrion (right down) as well as through a chloroplast (diagonally running from on the left of above to the center down). Preparation and micrograph by Dr. Detlef Kramer, TU Darmstad ...
Life Science Study Guide
Life Science Study Guide

... What does an animal cell look like? What organelles/ parts are found in an animal cell? An animal cell could have many different shapes. They can be more circular, or very irregular in shape. The organelles--o Cell membrane- the flexible, outer boundary. It protects what comes in and out of the cell ...
The Cell Cycle
The Cell Cycle

... Purpose: 1. To explain the six steps of the cell cycle 2. To explain the four phases of mitosis, and the cellular events that occur during each phase. Background Information: As you know when cells reach a certain size – i.e. they become too large, and the surface area to volume becomes too small – ...
Cellular Transport
Cellular Transport

... • Molecules move with the concentration gradient. ...
How does the ligand-receptor interaction of a hormone mediate
How does the ligand-receptor interaction of a hormone mediate

... cAMP inhibits T-cell activation through a PKA type I–Csk–Lck inhibitory pathway. In T-cells, cAMP inhibits TCR-induced T-cell activation and thereby exerts important immunoregulatory functions through a receptor–G-protein–AC–cAMP–PKA type I–Csk inhibitory pathway assembled in T-cell lipid rafts and ...
UNIT 1 - Colegio Nuestra Señora del Prado
UNIT 1 - Colegio Nuestra Señora del Prado

1 - Hamilton Local Schools
1 - Hamilton Local Schools

... Gradients allow materials to move across membranes, from an area of high concentration to an area of low concentration. Particles and water can diffuse across these selectively permeable membranes to allow for nutrients to come into a cell or to move wastes out of a cell. 5. What is the explanation ...
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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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