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Unit IV Teacher Notes
Unit IV Teacher Notes

... 3. Osmosis – diffusion of water from a high water concentration to a low water concentration through a selectively permeable membrane. Cells must have a mechanism for counteracting the pressure osmosis can create, otherwise a cell could swell & burst or explode when it comes in contact with a dilut ...
The Cell
The Cell

... Bordered by a porous membrane - nuclear envelope. Contains thin fibers of DNA and protein called Chromatin. Rod Shaped Chromosomes Contains a small round nucleolus ...
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discov5_lecppt_Ch06

... produced by the ER to their final destination, either inside or outside the cell, through the addition of specific chemical groups • Vesicles move the lipids and proteins from the ER to the Golgi apparatus ...
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A1987G155900001

... pump by FC and K~does indeed lead to cytosol alkalinization.2 Evidence was obtained showing that the FC-sensitive H + pump is regulated by intracellular pH, transmembrane potential, and by some natural hormones other than auxin.3 Some new, potentially important metabolic responses, such as abscisic ...
PHYS 101 Supplement 1 - Cell sizes and structures 1 PHYS 101
PHYS 101 Supplement 1 - Cell sizes and structures 1 PHYS 101

... filamentous cytoskeleton for much of their mechanical rigidity. As an internal network of thin filaments, the cytoskeleton does not have the strength of an external cell wall that would permit an animal cell to support a significant internal pressure. The most important organelles of plant and anima ...
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Structure Function

... • Transportation vehicle for the modified ER products. ...
AP Bio Ch 4
AP Bio Ch 4

... - large vacuole found in most mature plant cells - forms when smaller vacuoles from ER and Golgi coalesce - enclosed by tonoplast (part of endomembrane system) - functions: stores organic compounds (protein storage in seeds, etc.) ...
Class: 11 Subject: Biology Topic: Cell
Class: 11 Subject: Biology Topic: Cell

... Lysosomes & the vacuoles are endomembranous structures yet these differ in terms of their functions:- i) Lysosomes contains hydrolytic enzymes eg. lipase, protease which are able to digest lipids, proteins, nucleic acid & carbohydrate. ii) Vacoules are membrane bound spaces which facilitates transpo ...
Animal and Plant Cells- Powerpoint
Animal and Plant Cells- Powerpoint

... • What is an organelle? • Organelles are to cells what organs are to the body. • They carry out the individual tasks of gaining and working with energy, as well as directing the overall behavior of the cells. • Let’s familiarize yourself with the organelles of the animal and plant cell. ...
Animal and Plant Cells- Powerpoint
Animal and Plant Cells- Powerpoint

... • What is an organelle? • Organelles are to cells what organs are to the body. • They carry out the individual tasks of gaining and working with energy, as well as directing the overall behavior of the cells. • Let’s familiarize yourself with the organelles of the animal and plant cell. ...
Plant and Animal Cell Powerpoint
Plant and Animal Cell Powerpoint

... • What is an organelle? • Organelles are to cells what organs are to the body. • They carry out the individual tasks of gaining and working with energy, as well as directing the overall behavior of the cells. • Let’s familiarize yourself with the organelles of the animal and plant cell. ...
Cellular Transport
Cellular Transport

... • In endocytosis, the cell engulfs some of its extracellular fluid (ECF) including material dissolved or suspended in it. A portion of the plasma membrane is invaginated and pinched off forming a membrane-bounded vesicle called an endosome. ...
Lysosome
Lysosome

... Lysosomes are large, spherical organelles that contain enzymes (acid hydrolases). They break up food so it is easier to digest. They are found in animal cells, while in plant cells the same roles are performed by the vacuole. They digest excess or worn-out organelles, food particles, and engulfed vi ...
CELLS: Structures and Functions
CELLS: Structures and Functions

... • Microfilaments aid cell movement & muscle cells contraction. They are narrower than microtubules & form extensive networks in some cells. • They also provide a tough, flexible framework that supports the cell. (Motor Proteins – force organelles to move along the microfilaments and microtubles.) ...
AP Biology Final Exam Study guide Fall 2013
AP Biology Final Exam Study guide Fall 2013

... Organic functional groups; methyl, hydroxyl/alcohol/carboxyl, amino, carbonyl, aldehyde, ketone, phosphate, sulfhydryl ...
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Answers to End-of-Chapter Questions – Brooker et al ARIS site

... c. organize the inner nuclear membrane. d. all of the above. e. a and c only. Answer: e. The proteins in the nucleus provide two important organizational functions: organization of the inner nuclear membrane and organization of the chromosomes in their chromosomal territory. 6. The cytoskeleton is ...
The Human Cell poster
The Human Cell poster

... tubules that span the cytoplasm. The rough ER is covered with ribosomes that translate most of the transmembrane and secreted proteins. The smooth ER lacks ribosomes, but contains the machinery for synthesis of lipids and other biomolecules. ...
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Cells Part 3

... unit of life. ...
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Biology_Cell Transport Notes_13

... food and wastes with its environment. • These materials must cross the cell membrane. • The plasma membrane must regulate the movement of dissolved molecules on one side of the membrane to the liquid on the other side. • Small molecules go in and out freely while large molecules such as proteins and ...
Year 12 Induction Task Induction task: The Ultrastructure of Cells
Year 12 Induction Task Induction task: The Ultrastructure of Cells

... 3. Find a labelled diagram of the ultrastructure of a cell. Also include labelled diagrams of all the organelles mentioned in the specification details. 4. Write a detailed description of the function of each of the cell organelles that you are studying. 5. Find four diagrams of specialised cells th ...
Biology
Biology

... 3. Find a labelled diagram of the ultrastructure of a cell. Also include labelled diagrams of all the organelles mentioned in the specification details. 4. Write a detailed description of the function of each of the cell organelles that you are studying. 5. Find four diagrams of specialised cells th ...
Nanolive AG from Ecublens (VD) – 3D research on living cells
Nanolive AG from Ecublens (VD) – 3D research on living cells

Cell membrane
Cell membrane

...  Scientists estimate that our bodies contain anywhere from 75 to 100 trillion cells, all work in perfect harmony.  A typical cell is 10 square micrometers in size and 1 nanogram in mass!  The cell membrane is ridiculously small. It’s so small, in fact, that you’d have to stack more than 10,000 ce ...
Chapter 4 Notes
Chapter 4 Notes

... pores (holes/gates) that control what comes in and out (you need a pass to enter and exit). 5. Nucleolus – Dense region of chromtin, proteins and RNA where ribosome components are made (factory for ribosome parts). ...
Ch. 2A – Structure and Function - Spring
Ch. 2A – Structure and Function - Spring

... Ribosomes – make proteins; not surrounded by a membrane Endoplasmic reticulum (ER) – spreads from nucleus throughout most of the cytoplasm o Rough – has ribosomes on its surface o Smooth – no ribosomes; makes lipids such as cholesterol and helps remove harmful substances from the cell ...
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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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