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How do we describe cells?
How do we describe cells?

... Virus do not reproduce by division because they are not cells. ...
PowerPoint 簡報
PowerPoint 簡報

... allow the stem cell size to be regulated by factors that control the self-renewing or differentiation….mammals ie. HSC : Haemopoietic Stem Cell ...
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How substances get in and out of cells - questions

... 5 (a) Which one of the following is the best definition of osmosis? (i) The movement of water from a concentrated solution to a dilute solution across a partially permeable membrane. . (ii) The movement of a dissolved substance from a concentrated solution to a dilute solution across a partially per ...
Onion Cell Report Outline March 2017.notebook
Onion Cell Report Outline March 2017.notebook

... ­ plain unlined paper ­ pencil only * (use may use your computer to  draw the circle for this lab) ­ title for each diagram ­ labels on the right, underlined ­ labels are to lined up underneath one another ­ use a RULER ...
Vocab 200 - SharpSchool
Vocab 200 - SharpSchool

... What are the differences between active and passive transport? Active transport is the movement of materials through a membrane that requires energy to move molecules in the opposite direction of the way molecules move naturally. Passive transport is the movement of materials through a membrane that ...
3.5 Active Transport
3.5 Active Transport

...  Most often, the energy needed for active transport is supplied ...
Cell Analogy Rubric – Honors Biology
Cell Analogy Rubric – Honors Biology

... (Each criterion is worth 3 points) 1. Creation of group wiki 2. Invite instructor by email to be a member of wiki 3. Each member commented on each other’s idea for the video presentation during the planning period 4. Members collaborated equally in the development of the video ...
Chapter 3 The Cell
Chapter 3 The Cell

... procaryotic, algae, plants, fungi and many protozoans. Animal cells do not contain a cell wall. II. Cytoplasm ...
Internal and External Factors Regulate Cell Division External
Internal and External Factors Regulate Cell Division External

... ­ class of diseases characterized by uncontrolled cell division ­occurs when the regulation of the cell cycle breaks down ­Unlike healthy cells that stop growing once they are  surrounded by other cells, cancerous cells continue to divide. ­they also divide without many of the growth factors  requir ...
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... • Uses energy from sun to make food for the plant (photosynthesis) ...
Lysosomes
Lysosomes

... • The only thing that keeps the cell itself from being digested is the membrane surrounding the lysosomes. ...
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Flagellum/Cillium

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BIO 105 S 2013 55244 61816 LAB 1 Mitosis vs. Meiosis and
BIO 105 S 2013 55244 61816 LAB 1 Mitosis vs. Meiosis and

... Cells are very small in size, for both plants and animals. A microscope is needed to view each type. New cells are formed by the division of living cells, through the process of Mitosis or Meiosis. Mitosis is consists of 5 main stages ...
Unicellular Organisms 1.13
Unicellular Organisms 1.13

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How to look at the brain:

cell - MrsEhrhardScience
cell - MrsEhrhardScience

... • Rigid structure, much thicker than the cell membrane • Provides support and additional protection. • Found in plants, fungi, and most bacteria – NOT in animals. ...
Cells
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... separates the chromosomes in its cell nucleus into two identical sets, in two separate nuclei. It is generally followed immediately by cytokinesis, which divides the nuclei, cytoplasm, organelles and cell membrane into two cells containing roughly equal shares of these cellular components. Mitosis a ...
DNA (isolate
DNA (isolate

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... Mitochondria contain their own DNA and are therefore capable of self-replication, though this process is tied to the presence of proteins encoded for by the DNA of the nucleus and translated by cytoplasmic ribosomes. ...
Cells - need help with revision notes?
Cells - need help with revision notes?

... Stem cells exist in every tissue, and their role is to undergo mitosis when an organism needs to grow, asexually reproduce or repair themselves. Stem cells are undifferentiated cells with no identity; they have no specific features like other cells. They are able to undergo mitosis to produce daugh ...
The Cell - Rocoscience
The Cell - Rocoscience

... Structures inside the nucleus that contain DNA and proteins are called _____________. Since DNA cannot leave the nucleus, genetic information is copied into molecules of __________ and sent out into the cytoplasm. This information is used to manufacture ________________. ...
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cell wall - HCC Learning Web
cell wall - HCC Learning Web

... a beam of electrons onto the surface of a specimen, providing images that look 3-D • Transmission electron microscopes (TEMs) focus a beam of electrons through a specimen • TEMs are used mainly to study the internal structure of cells ...
The Cell
The Cell

... • Extensive system of internal membranes connected to the nuclear membrane • “Rough” - contain ribosomes and manufactures proteins • “Smooth” – involved in lipid synthesis and transport Function: ...
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Cell cycle



The cell cycle or cell-division cycle is the series of events that take place in a cell leading to its division and duplication (replication) that produces two daughter cells. In prokaryotes which lack a cell nucleus, the cell cycle occurs via a process termed binary fission. In cells with a nucleus, as in eukaryotes, the cell cycle can be divided into three periods: interphase, the mitotic (M) phase, and cytokinesis. During interphase, the cell grows, accumulating nutrients needed for mitosis, preparing it for cell division and duplicating its DNA. During the mitotic phase, the cell splits itself into two distinct daughter cells. During the final stage, cytokinesis, the new cell is completely divided. To ensure the proper division of the cell, there are control mechanisms known as cell cycle checkpoints.The cell-division cycle is a vital process by which a single-celled fertilized egg develops into a mature organism, as well as the process by which hair, skin, blood cells, and some internal organs are renewed. After cell division, each of the daughter cells begin the interphase of a new cycle. Although the various stages of interphase are not usually morphologically distinguishable, each phase of the cell cycle has a distinct set of specialized biochemical processes that prepare the cell for initiation of cell division.
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