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Lesson 04 Plant vs. Animal cells Lab Answers
Lesson 04 Plant vs. Animal cells Lab Answers

... underground, where there is no light exposure. A chloroplast would be unnecessary in the dark._______________ Evaluation: e. If you see just large, dark circles under the microscope, what are you probably looking at? ___ ...
Station 1 Prokaryotic vs. Eukaryotic Cells
Station 1 Prokaryotic vs. Eukaryotic Cells

... • Can the following structures be found in both prokaryotic and eukaryotic cells? ...
Mitosis
Mitosis

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cells - Piscataway High School
cells - Piscataway High School

... 1) Mitochondria and chloroplasts have their own DNA. 2) These organelles have two outer membranes. 3) These organelles are the same size as the ...
Cell Cycle and Cell Division
Cell Cycle and Cell Division

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Exploring the Cell - Tamalpais Union High School District
Exploring the Cell - Tamalpais Union High School District

... components. As we have learned in our study of the origin of life, singled celled organisms were the first living things on Earth. Cells are the basic structural and functional units of life. Some organisms are composed of a single cell while others are composed of trillions of cells. In order to ga ...
1. Define: Prokaryotic Cells without a nucleus. Very primitive
1. Define: Prokaryotic Cells without a nucleus. Very primitive

... Eukaryotic Cells with a nucleus. 2. List the 3 parts to the cell theory. a. All living things are composed of cells b. Cells are the basic unit of structure and function in living things c. All new cells come from pre-existing cells ...
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1.2 Prokaryotic Eukaryotic

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prokaryote and eukaryote
prokaryote and eukaryote

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Cells - Wsfcs
Cells - Wsfcs

... 3.. What English scientist was first to view dead plant cells? 4. State the 3 parts to the cell theory. 5. Tell how each of these scientists contributed to the cell theory --- Matthias Schleiden, Theodor Schwann, and Rudolf Virchow. 6. Give 3 ways that cells are not alike. 7. What is one of the long ...
Name Date ______ Period _____
Name Date ______ Period _____

... Cell Size ____________________ function ___________________________ than large cells. If a cell’s surface area–to-volume ratio is too low, substances cannot enter and leave the cell well enough to meet the cell’s needs. Common Cell Features Cells share common structural features, including: ...
Genetic Control of Protein Synthesis, Cell Function, and Cell
Genetic Control of Protein Synthesis, Cell Function, and Cell

... • Replication is initiated at replication origin and proceeds in both directions. • Entire genome is replicated once - further replication is blocked • involves DNA polymerase and other proteins that function to unwind and stabilize the DNA and “prime” DNA replication of the “lagging” strand. ...
chapter 3 - Catherine Huff`s Site
chapter 3 - Catherine Huff`s Site

... 5. Can a cell that does not contain a nucleus live as long as a cell that does contain one? Why or why not? 6. Describe the nuclear envelope. How is it different from the cell membrane? ...
Warm
Warm

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topic 1.6 quiz - Peoria Public Schools
topic 1.6 quiz - Peoria Public Schools

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... build thousands of proteins. (Prokaryotes do not have a nucleus) 4. The Chromosomes are the condensed genetic material (DNA) found within a cell. 5. The mitochondria are the powerhouses of the cell. Mitochondria are the organelles where cellular energy is produced, providing the energy needed to pow ...
chapter 7 a view of the cell
chapter 7 a view of the cell

... – The membrane-bound structures are called organelles – Contains a nucleus: organelle that manages cellular function. First observed by Robert Brown. Rudolf Virchow concluded that it was responsible for cell division. ...
3 Bio Eukaryotic Cell Structure and Function (Ch 7.2)
3 Bio Eukaryotic Cell Structure and Function (Ch 7.2)

... Small round membrane surrounded organelles filled with enzymes Found anywhere in the cytoplasm Digests or breaks down macromolecules so they can be used by the rest of the cell Eat worn out organelles Remove “junk” Cleanup Crew ...
A View of a Cell
A View of a Cell

The Cell
The Cell

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Endocytosis - Cloudfront.net
Endocytosis - Cloudfront.net

... • Endocytosis: Process in which the plasma membrane takes in substances (2 types) – 1) Phagocytosis: when a cell engulfs a solid particle – 2) Pinocytosis: when a cell engulfs a liquid particle • Unfortunately, viruses can also enter our cells this way ...
The Process of Cell Division (10.2)
The Process of Cell Division (10.2)

... Cell Cycle: The cell grows, prepares for division, and divides to form two daughter cells Prokaryotic Cell Cycle (Binary Fission) - Once they grow to a certain size, the cell copies its DNA - the 2 DNA chromosomes attach to different regions of the cell membrane - a network of fibers forms between t ...
Chapter 4
Chapter 4

... Cell Nucleus Contains majority of cell’s DNA  Genes – segments of DNA that code for proteins  Takes form of chromosomes during cell division  Not dividing – chromatin (DNA loosely arranged) ...
Name: Date: Cells Webquest Part I: What are cell
Name: Date: Cells Webquest Part I: What are cell

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Chapter 4 Exam Review
Chapter 4 Exam Review

... 1. What are the 3 components of the cell theory? 2. Several scientists contributed to the development of the cell theory – describe how Robert Hooke contributed to this theory. Who proposed the cell theory? 3. What happens to the rate of diffusion across a cell’s surface when the cell gets larger? W ...
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Cell nucleus



In cell biology, the nucleus (pl. nuclei; from Latin nucleus or nuculeus, meaning kernel) is a membrane-enclosed organelle found in eukaryotic cells. Eukaryotes usually have a single nucleus, but a few cell types have no nuclei, and a few others have many.Cell nuclei contain most of the cell's genetic material, organized as multiple long linear DNA molecules in complex with a large variety of proteins, such as histones, to form chromosomes. The genes within these chromosomes are the cell's nuclear genome. The function of the nucleus is to maintain the integrity of these genes and to control the activities of the cell by regulating gene expression—the nucleus is, therefore, the control center of the cell. The main structures making up the nucleus are the nuclear envelope, a double membrane that encloses the entire organelle and isolates its contents from the cellular cytoplasm, and the nucleoskeleton (which includes nuclear lamina), a network within the nucleus that adds mechanical support, much like the cytoskeleton, which supports the cell as a whole.Because the nuclear membrane is impermeable to large molecules, nuclear pores are required that regulate nuclear transport of molecules across the envelope. The pores cross both nuclear membranes, providing a channel through which larger molecules must be actively transported by carrier proteins while allowing free movement of small molecules and ions. Movement of large molecules such as proteins and RNA through the pores is required for both gene expression and the maintenance of chromosomes. The interior of the nucleus does not contain any membrane-bound sub compartments, its contents are not uniform, and a number of sub-nuclear bodies exist, made up of unique proteins, RNA molecules, and particular parts of the chromosomes. The best-known of these is the nucleolus, which is mainly involved in the assembly of ribosomes. After being produced in the nucleolus, ribosomes are exported to the cytoplasm where they translate mRNA.
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