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Bacteria and their cell walls
Bacteria and their cell walls

... • Only found in Gram negative bacteria cell walls • Provides structure and protection • Considered to be toxic to animals and results in: – Fever – Inflammation – Potentially fatal ...
Plant Cell
Plant Cell

... Describe: Concentration inside is less than outside of the cell. Water moves out of the cell to try to even out the concentration. Animal(RBC and Cell in Beaker): Cell has lost so much water that it is shriveled. Plant Cell: vacuole has lost water and cytoplasm shrinks away from the cell wall causin ...
Function
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... (Government-regulate, control) Control center of the cell Contains most of the cell’s genetic information in DNA ...
Cells In Their Environment
Cells In Their Environment

... membrane surrounds a desirable macromolecule that is outside of the cell. • The cell then pinches off the saclike portion of its outer membrane to form a tiny new vesicle. • Membranous vesicle moves into the cell where it can fuse with other organelles or release its contents into the cytoplasm. ...
Cell Theory PPT
Cell Theory PPT

...  Matthias Schleiden- (German, around 1830’s) a Botanist, concluded that all plants were made up of cells.  Theodor Schwann- (German, worked during the same time as Schleiden), studied animal cells. Concluded that animals were made up of cells.  Rudolf Virchow- (1858) concluded that all new cells ...
Chemistry of Life - Haughton Science
Chemistry of Life - Haughton Science

... together in protein molecules dipeptide bond = two connected amino acids polypeptide bond = 3 or more connected amino acids ...
proteins——Echo,Jason,Philip
proteins——Echo,Jason,Philip

... that proteins have but sugar doesn't have? A)control the matabolism B)make up cell membrane C)make up genetic material D)the main energy for organism ...
Cell Structure and Function
Cell Structure and Function

... A. Nucleolus B. Lysosomes C. Ribosomes 23. What organelle serves as the powerhouse of the cell? 24. What important process takes place in the mitochondria? 25. Which type of cells would have more mitochondria & why? 26. ___________ like glucose are burned in the mitochondria to release cellular ene ...
Structure and Function of the Cell
Structure and Function of the Cell

... of the cell. Site where RNA is made. 1. It is surrounded by a double membrane (nuclear envelope) perforated with pores. 2. Contains Chromosomes, which are rod shaped structures containing DNA and protein. 3. The Nucleolus is also found in the nucleus. It produces ribosomes. The nucleus controls the ...
K - Shelton State
K - Shelton State

... Nissl bodies ...
Homeostasis and Cell Processes
Homeostasis and Cell Processes

... How do organisms maintain homeostasis • Cells must work together to maintain homeostasis • Ex. When an organism is cold cell respond to maintain body temp. • Warm-blooded animals muscle cells contract to generate heat. ...
Cell structure The basic structure of a cell The cell is the basic unit of
Cell structure The basic structure of a cell The cell is the basic unit of

...  It is mainly made up of cellulose (纖維素).  It is fully permeable, i.e. allows all types of substances to move across.  It protects, supports and gives shape to plant cells. ...
Onion Root Tip Lab
Onion Root Tip Lab

... • Region of Elongation- area in which growth occurs ...
Passive Transport Passive Transport
Passive Transport Passive Transport

... In an aqueous solution -water is the solvent -dissolved substances are the solutes Osmosis is the movement of water from an area of high to low concentration of water -movement of water toward an area of high solute concentration ...
2-1,2-2 Cell Division - Cell Structures
2-1,2-2 Cell Division - Cell Structures

... Cytoplasm – This is the fluid that contains all of the organelles in the cell. The cytoplasm also contains a network of microtubules that act like a rail system and skeleton for the cell. During cell division a segment of the microtubules, called the centrioles, help the cell divide evenly in half. ...
Unit 1
Unit 1

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Cell theory 1 - Destiny High School
Cell theory 1 - Destiny High School

...  2. All living things are made of cells.  3. New cells are produced from existing cells.  4. Life CANNOT come from non-life ...
IBCH Seminar
IBCH Seminar

... membrane potential, fast kinetics for single cell synaptic responses, and a high signal/noise ratio. Butterfly reports EPSPs in cortical neurons, whisker-evoked responses in barrel cortex, 25 Hz gamma oscillations in hippocampal slices, and 2-12 Hz slow waves during brain state modulation in vivo. A ...
Cells
Cells

... take place. It also contains many other structures called organelles that helps the cell to function properly. Plant cells contain some parts that animal cells don’t have. These include: Cell wall – a thick, tough layer on the outside of the cell membrane that protects the softer parts inside the ce ...
a) A, D
a) A, D

... d) ribosomes--site of protein synthesis b) chloroplasts--chief site of cellular respiration e) mitochondria--formation of ATP c) chromosomes--genetic control information __18. Which of the following cell components is not directly involved in synthesis or secretion of proteins? a) ribosomes b) lysos ...
Exam 1 suggested answers (2010)
Exam 1 suggested answers (2010)

... d. Temporal summation: adding up of postsynaptic potentials evoked in rapid succession at the same synapse 2.a. A synapse with Erev more negative than threshold is inhibitory. Even though it results in a depolarization when the neuron is at resting potential, this makes it harder for the neuron to d ...
The Cell Cycle
The Cell Cycle

... Cancer: Out of Control Cell Division • The defining feature of a cancerous cell is that is divides much more often than is healthycreating a stack of cells called a tumor • How does it do that? It has to bypass all the checkpoints that tell it to stop dividing ...
Things that make you sick!
Things that make you sick!

... from person or object to another  Carrier--is a person or other organism that has contracted an infectious disease, but who displays no symptoms  Vector--is any agent (person, animal or microorganism) that carries and transmits an infectious agent ...
Astronomy Review
Astronomy Review

... • What happens to a vacuole in a plant cell when there is little water available over a long period of time? What happens to the plant? (Hint: does not die) ...
Midterm Review - juan
Midterm Review - juan

... 3. Make a venn diagram outlining the similarities and differences between eukaryotic and prokaryotic cells. Use the following terms: ribosomes, nucleus, membrane bound organelles, plasma membrane, circular DNA, linear DNA, bacteria, plants, animals, fungi, protists ...
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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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