Notes Section 3.1: Cell Theory
... Two types of cells • There are two cell types: eukaryotic cells and prokaryotic cells. • Eukaryotic cells have a nucleus and membrane bound organelles (you are made up of eukaryotic cells). • Prokaryotic cells do not have membrane bound organelles and have no nucleus. ...
... Two types of cells • There are two cell types: eukaryotic cells and prokaryotic cells. • Eukaryotic cells have a nucleus and membrane bound organelles (you are made up of eukaryotic cells). • Prokaryotic cells do not have membrane bound organelles and have no nucleus. ...
3 - Notes - POLYTECH High School
... centrioles 6. Anaphase: spindle fibers contract & pull sister chromatids apart 7. Telophase: chromosomes have completed their migrations making 2 identical groups, nuclear envelopes reappear, chromosomes begin to unwind ...
... centrioles 6. Anaphase: spindle fibers contract & pull sister chromatids apart 7. Telophase: chromosomes have completed their migrations making 2 identical groups, nuclear envelopes reappear, chromosomes begin to unwind ...
CELL ORGANELLES
... Vacuole - A vacuole is a membrane-bound sac that is a temporary storage area for food, enzymes, other materials needed by the cell and waste products. In plant cells there is a large vacuole that plays a part in the rigidity of the plant and in animal cells the vacuoles are small. Lysosomes - Lysos ...
... Vacuole - A vacuole is a membrane-bound sac that is a temporary storage area for food, enzymes, other materials needed by the cell and waste products. In plant cells there is a large vacuole that plays a part in the rigidity of the plant and in animal cells the vacuoles are small. Lysosomes - Lysos ...
The Cell Membrane
... to others. Permeable means “allowing passage,” and impermeable means “not allowing passage.” The cell membrane plays an important role in keeping harmful substances out of the cell and in removing wastes. Because it allows only certain substances to pass through it, we call the cell membrane a selec ...
... to others. Permeable means “allowing passage,” and impermeable means “not allowing passage.” The cell membrane plays an important role in keeping harmful substances out of the cell and in removing wastes. Because it allows only certain substances to pass through it, we call the cell membrane a selec ...
In eukaryotes, heritable information is passed to the
... a. The cell cycle is a complex set of stages that is highly regulated with checkpoints, which determine the ultimate fate of the cell. 2. The cell cycle is directed by internal controls or checkpoints. Internal and external signals provide stopand-go signs at the checkpoints. To foster student under ...
... a. The cell cycle is a complex set of stages that is highly regulated with checkpoints, which determine the ultimate fate of the cell. 2. The cell cycle is directed by internal controls or checkpoints. Internal and external signals provide stopand-go signs at the checkpoints. To foster student under ...
Cell cycle
... the materials needed for DNA synthesis. Also various proteins are needed to change chromatin into chromosomes that are visible. S –During it each chromosome replicates to produce two sister chromatids, which remain attached to each other at the centromere. The centromere is a point of constriction o ...
... the materials needed for DNA synthesis. Also various proteins are needed to change chromatin into chromosomes that are visible. S –During it each chromosome replicates to produce two sister chromatids, which remain attached to each other at the centromere. The centromere is a point of constriction o ...
File
... perform various functions • Different types of cells perform different functions. The size and shape of a cell relates to its function ...
... perform various functions • Different types of cells perform different functions. The size and shape of a cell relates to its function ...
Cell Transport
... 2. What are some things that cannot pass through a window screen? Why is it important to keep these things from moving through the screen? 3. The cell is surrounded by a cell membrane, which regulates (controls) what enters and leaves the cell. Why is it important to regulate what moves into and out ...
... 2. What are some things that cannot pass through a window screen? Why is it important to keep these things from moving through the screen? 3. The cell is surrounded by a cell membrane, which regulates (controls) what enters and leaves the cell. Why is it important to regulate what moves into and out ...
08. Cell Organelle II
... undulating action generates motion parallel to flagellum axis; ciliary motion – oar-like action generation motion perpendicular to cilium axis (fig. 6 – 23 & ppt. 7) - spindle apparatus of cell division: microtubules direct movements of chromosomes in cell division • microfilaments (fig. 6 – 26, 6 ...
... undulating action generates motion parallel to flagellum axis; ciliary motion – oar-like action generation motion perpendicular to cilium axis (fig. 6 – 23 & ppt. 7) - spindle apparatus of cell division: microtubules direct movements of chromosomes in cell division • microfilaments (fig. 6 – 26, 6 ...
THE CELL - Kevan Kruger
... It is made up of the following things: Nuclear membrane: a double layer of cell membrane, which contains very large pores which allow macromolecules (RNA and proteins) in and out of the nucleus. Nucleolus: This is the dark stained area in the nucleus (usually spherical). It is made up primarily of ...
... It is made up of the following things: Nuclear membrane: a double layer of cell membrane, which contains very large pores which allow macromolecules (RNA and proteins) in and out of the nucleus. Nucleolus: This is the dark stained area in the nucleus (usually spherical). It is made up primarily of ...
Introduction to Organelles
... • Put finishing touches on proteins and lipids that arrive from ER • Package finished material for shipment to final destinations. (Exocytosis) • Material arrives and leaves in vesicles ...
... • Put finishing touches on proteins and lipids that arrive from ER • Package finished material for shipment to final destinations. (Exocytosis) • Material arrives and leaves in vesicles ...
Cell Structure and Function
... Principles of Cell Theory • All living things are made of cells • Smallest living unit of structure and function of all organisms is the cell ...
... Principles of Cell Theory • All living things are made of cells • Smallest living unit of structure and function of all organisms is the cell ...
3.5 Active Transport
... gradients, cells must use energy. Active transport requires energy to move substances against ...
... gradients, cells must use energy. Active transport requires energy to move substances against ...
Cells & Microscopes Quick Quiz 3
... button when you’re sure… remember to take your time as you only get one chance! ...
... button when you’re sure… remember to take your time as you only get one chance! ...
CELL ORGANELLES – VOCABULARY REFERENCE SHEET
... Chains of amino acids that make up and carry out all processes in a cell and living organisms. They may be enzymes, build the structure of a cell or cell part, or send signals to repair the cell or fight off intruding organisms. ...
... Chains of amino acids that make up and carry out all processes in a cell and living organisms. They may be enzymes, build the structure of a cell or cell part, or send signals to repair the cell or fight off intruding organisms. ...
2 cells no test
... - Filled with fluid which provides turgor or hydrostatic pressure for the cell (makes it firm) - storage - In Plant cells only (Animal cells have small vacuoles) ...
... - Filled with fluid which provides turgor or hydrostatic pressure for the cell (makes it firm) - storage - In Plant cells only (Animal cells have small vacuoles) ...
2.2.6 Movement through Cell Membranes Osmosis
... SALTING - causes water to be drawn from bacterial cells and denatures bacterial enzymes kills all bacteria. Fish and Meat (bacon) may be stored in a salty solution. SUGAR - in high concentrations causes water to be drawn from bacterial cells - kills all bacteria. Jams and tinned fruits are stored in ...
... SALTING - causes water to be drawn from bacterial cells and denatures bacterial enzymes kills all bacteria. Fish and Meat (bacon) may be stored in a salty solution. SUGAR - in high concentrations causes water to be drawn from bacterial cells - kills all bacteria. Jams and tinned fruits are stored in ...
Bingo
... Transfer energy from organic molecules (like glucose) to ATP (cellular energy) Muscle cells have lots of these Nicknamed the POWERHOUSE Inner folds called cristae to increase surface area ...
... Transfer energy from organic molecules (like glucose) to ATP (cellular energy) Muscle cells have lots of these Nicknamed the POWERHOUSE Inner folds called cristae to increase surface area ...
Cytoskeleton 14
... centrosome located near the nucleus and known as microtubule organizing center. Microtubules are known as girders of cytoskeleton. Centrioles: Within the centrosome is a pair of centrioles. Each composed of nine sets of triplet microtubules arranged in a ring. Before the division of animal cell ...
... centrosome located near the nucleus and known as microtubule organizing center. Microtubules are known as girders of cytoskeleton. Centrioles: Within the centrosome is a pair of centrioles. Each composed of nine sets of triplet microtubules arranged in a ring. Before the division of animal cell ...
Build your own Cell
... The internal movement of cell organelles, as well as cell locomotion and muscle fiber contraction could not take place without the cytoskeleton. Organized network of three primary protein filaments: o microtubules o actin filaments (microfilaments) o intermediate fibers Nucleus Double membran ...
... The internal movement of cell organelles, as well as cell locomotion and muscle fiber contraction could not take place without the cytoskeleton. Organized network of three primary protein filaments: o microtubules o actin filaments (microfilaments) o intermediate fibers Nucleus Double membran ...
Cell Structure and Function
... • Scanning Electron Microscope (SEMs) – Beams of electrons scanned over the surface of a specimen – Produces a 3D image – Samples must be chemically preserved and removed of all water so no living things can be seen. ...
... • Scanning Electron Microscope (SEMs) – Beams of electrons scanned over the surface of a specimen – Produces a 3D image – Samples must be chemically preserved and removed of all water so no living things can be seen. ...
The Basic Units of Life
... • Cells come in many shapes and sizes, but all cells have these in common: – Cell Membrane (barrier) – Cytoplasm (“juice” in the center) ...
... • Cells come in many shapes and sizes, but all cells have these in common: – Cell Membrane (barrier) – Cytoplasm (“juice” in the center) ...
Study Guide: The Cell Cycle, Levels of Organization and DNA
... What do you call the copy of a chromosome that lines up during mitosis? How are they attached? When does duplication of the nucleus occur? (interphase, mitosis or cytokinesis?) LEVELS OF ORGANIZATION – What are the basic units of all living things? A group of several types of similar cells for ...
... What do you call the copy of a chromosome that lines up during mitosis? How are they attached? When does duplication of the nucleus occur? (interphase, mitosis or cytokinesis?) LEVELS OF ORGANIZATION – What are the basic units of all living things? A group of several types of similar cells for ...
cell theory - Valhalla High School
... Cell Theory Timeline • 1839 - Matthias Schleiden and Theodor Schwann create cell theory. The theory states that all living things are made up of one or more cells. Schleiden publishes his cell theory applying it to plants, while Schwann publishes his applied to animals. ...
... Cell Theory Timeline • 1839 - Matthias Schleiden and Theodor Schwann create cell theory. The theory states that all living things are made up of one or more cells. Schleiden publishes his cell theory applying it to plants, while Schwann publishes his applied to animals. ...
Cytokinesis
Cytokinesis (cyto- + kinesis) is the process during cell division in which the cytoplasm of a single eukaryotic cell is divided to form two daughter cells. It usually initiates during the early stages of mitosis, and sometimes meiosis, splitting a mitotic cell in two, to ensure that chromosome number is maintained from one generation to the next. After cytokinesis two (daughter) cells will be formed that are exact copies of the (parent) original cell. After cytokinesis, each daughter cell is in the interphase portion of the cell cycle. In animal cells, one notable exception to the normal process of cytokinesis is oogenesis (the creation of an ovum in the ovarian follicle of the ovary), where the ovum takes almost all the cytoplasm and organelles, leaving very little for the resulting polar bodies, which then die. Another form of mitosis without cytokinesis occurs in the liver, yielding multinucleate cells. In plant cells, a dividing structure known as the cell plate forms within the centre of the cytoplasm and a new cell wall forms between the two daughter cells.Cytokinesis is distinguished from the prokaryotic process of binary fission.