Lecture 4 - A tour through the cell
... Concept: Eukaryotic cells have internal membranes that compartmentalize their functions • the basic structural and functional unit of every organism is the cell • two types of cells: prokaryotic or eukaryotic • protists, fungi, animals, and plants all consist of eukaryotic ...
... Concept: Eukaryotic cells have internal membranes that compartmentalize their functions • the basic structural and functional unit of every organism is the cell • two types of cells: prokaryotic or eukaryotic • protists, fungi, animals, and plants all consist of eukaryotic ...
Tonicity - cypresswoodsbiology
... of water down the concentration gradient (from an area of high concentration to an area of low concentration) Water never stops moving, even when equilibrium has been reached. ...
... of water down the concentration gradient (from an area of high concentration to an area of low concentration) Water never stops moving, even when equilibrium has been reached. ...
Name
... Observe the TEM image of rat liver cell(s) and sketch it in the space below. Label as many organelles/structures as you can (at least 5). HINT: remember that this is magnified much more than what you would see in a normal compound light microscope. Be careful!! Magnification __________ ...
... Observe the TEM image of rat liver cell(s) and sketch it in the space below. Label as many organelles/structures as you can (at least 5). HINT: remember that this is magnified much more than what you would see in a normal compound light microscope. Be careful!! Magnification __________ ...
Ch 7 RNO
... Read Chapter 7. As you do so, take notes on the following topics on a separate piece of notebook paper. You will have to study these for tests, so do not just “answer” the topic questions below- write out the info in an outline format that contains the detail needed to understand what the topic is a ...
... Read Chapter 7. As you do so, take notes on the following topics on a separate piece of notebook paper. You will have to study these for tests, so do not just “answer” the topic questions below- write out the info in an outline format that contains the detail needed to understand what the topic is a ...
Chapter 5
... offspring maintains stem cell characteristics and the other differentiates and maintains a specific function blastomere - cell formed by the division of a fertilized egg in which the G phase is absent, so replication occurs quickly, making up the blastula centromere - region of a nuclear chromosome ...
... offspring maintains stem cell characteristics and the other differentiates and maintains a specific function blastomere - cell formed by the division of a fertilized egg in which the G phase is absent, so replication occurs quickly, making up the blastula centromere - region of a nuclear chromosome ...
File
... Internal membrane system The site where lipid components of the cell membrane are assembled, along with proteins and other materials that are exported from the cell. Rough ER: involved in the synthesis of ...
... Internal membrane system The site where lipid components of the cell membrane are assembled, along with proteins and other materials that are exported from the cell. Rough ER: involved in the synthesis of ...
Cell Review Study Guide Key
... E. It is a bilayer composed mainly of phospholipids and proteins 2. The nucleus includes all of the following EXCEPT ____________________ A. cytoplasm B. nuclear envelope C. DNA D. nucleolus 3. Substances produced in a cell and exported outside of the cell would pass through __________________ A. en ...
... E. It is a bilayer composed mainly of phospholipids and proteins 2. The nucleus includes all of the following EXCEPT ____________________ A. cytoplasm B. nuclear envelope C. DNA D. nucleolus 3. Substances produced in a cell and exported outside of the cell would pass through __________________ A. en ...
Meiosis and Sexual Reproduction
... In the space provided, write the name of the stage of meiosis that is being described. 5. The centromeres divide, and the chromatids, now called chromosomes, move to opposite poles of the cell. 6. The homologous chromosomes separate. The chromosomes of each pair are pulled to opposite poles of the ...
... In the space provided, write the name of the stage of meiosis that is being described. 5. The centromeres divide, and the chromatids, now called chromosomes, move to opposite poles of the cell. 6. The homologous chromosomes separate. The chromosomes of each pair are pulled to opposite poles of the ...
What are cells?
... • Direct all cell’s activities • Surrounded by a membrane • Cells with a nuclear membrane: Eukaryotic cells • Those without a nuclear membrane: prokaryotic cells – Ex. One-celled organism; bacteria BACK ...
... • Direct all cell’s activities • Surrounded by a membrane • Cells with a nuclear membrane: Eukaryotic cells • Those without a nuclear membrane: prokaryotic cells – Ex. One-celled organism; bacteria BACK ...
Cellular Structure Teacher Copy
... including the cell membrane, in maintaining homeostasis and cell reproduction. ...
... including the cell membrane, in maintaining homeostasis and cell reproduction. ...
A cell is like a car..
... is like the fuel line of a car. The fuel line carries gas from the fuel line to the gas tank, like an endoplasmic reticulum carries proteins . ...
... is like the fuel line of a car. The fuel line carries gas from the fuel line to the gas tank, like an endoplasmic reticulum carries proteins . ...
Chapter 3 Vocabulary
... The fluid surrounding a cell’s organelle and anything dissolved in it. Outside the nucleus. ...
... The fluid surrounding a cell’s organelle and anything dissolved in it. Outside the nucleus. ...
Unit 2 - Cell Structure and Function
... Note: In Eukaryotes, ORGANELLES float within cytoplasm and perform specific functions ...
... Note: In Eukaryotes, ORGANELLES float within cytoplasm and perform specific functions ...
Gross anatomy Microscopic anatomy Physiology Histology Organ
... organism and its parts The study of tissue ...
... organism and its parts The study of tissue ...
Guided Notes on Cell Parts Fill in the blank on your Sheet
... Reticulum is connected to the Nuclear membrane and acts like a conveyer belt. • It helps move Ribosomes and compounds around the cell. ...
... Reticulum is connected to the Nuclear membrane and acts like a conveyer belt. • It helps move Ribosomes and compounds around the cell. ...
Vocabulario y resumen de la sección
... 1. cell cycle: the life cycle of a cell 2. chromosome: in a eukaryotic cell, one ...
... 1. cell cycle: the life cycle of a cell 2. chromosome: in a eukaryotic cell, one ...
Cells and Cell Theory
... Cytoskeleton: 3-D network of small protein fibers. • Suspends organelles in the cytoplasm allowing movement • Three types: a. Microfilaments - very fine structures • bind the cell • important in cell division & cell movement. b. Intermediate fibers - help maintain cell shape c. Microtubules - large ...
... Cytoskeleton: 3-D network of small protein fibers. • Suspends organelles in the cytoplasm allowing movement • Three types: a. Microfilaments - very fine structures • bind the cell • important in cell division & cell movement. b. Intermediate fibers - help maintain cell shape c. Microtubules - large ...
LIVING CHARACTERISTICS Organization
... Energy - Living organisms need energy, which is obtained from the environment ...
... Energy - Living organisms need energy, which is obtained from the environment ...
Anatomy Chapter 3 section 3 Active Transport Diffusion or facilitated
... exposed on its outer surface. Proteins are receptors to which specific molecules from the fluids surrd cell can bind and selectively enter cell, while other types of molecules are left behind. Molecules that bind specifically to receptors are called – Ligands. EX: ...
... exposed on its outer surface. Proteins are receptors to which specific molecules from the fluids surrd cell can bind and selectively enter cell, while other types of molecules are left behind. Molecules that bind specifically to receptors are called – Ligands. EX: ...
Mitosis and Asexual Reproduction
... nucleus _________________ to produce two cells with nuclei having _________________ ______________________________________ eukaryotic cells often have a diploid number of chromosomes ...
... nucleus _________________ to produce two cells with nuclei having _________________ ______________________________________ eukaryotic cells often have a diploid number of chromosomes ...
Cell Growth and Division
... -The larger a cell becomes, the harder it is for a cell’s DNA to keep up with the entire cell. -Compare it to a growing town… -…….Library has enough books for a small town, when it continues to grow the library can no longer keep up with the demands of the citizens. ...
... -The larger a cell becomes, the harder it is for a cell’s DNA to keep up with the entire cell. -Compare it to a growing town… -…….Library has enough books for a small town, when it continues to grow the library can no longer keep up with the demands of the citizens. ...
CH 8 Notes - Haiku Learning
... A. Meiosis: process of nuclear division that reduces the number of chromosomes in new cells to half the number in the original cell 1. Gametes: haploid reproductive cells a) sperm cells and egg cells that are (1n) b) contain 23 chromosomes 2. Sperm and egg cell together form a zygote that contains 4 ...
... A. Meiosis: process of nuclear division that reduces the number of chromosomes in new cells to half the number in the original cell 1. Gametes: haploid reproductive cells a) sperm cells and egg cells that are (1n) b) contain 23 chromosomes 2. Sperm and egg cell together form a zygote that contains 4 ...
Meiosis
... number of chromosomes as the original cell Produces gametes (eggs & sperm) Occurs in the testes in males ...
... number of chromosomes as the original cell Produces gametes (eggs & sperm) Occurs in the testes in males ...
Cell Reproduction
... Cells divide to continue their life process just as multicellular organisms must reproduce – so do unicellular organisms. There are three major types of cellular reproduction: 1. binary fission – prokaryotic organisms (unicellular) 2. mitosis – eukaryotic organisms (multicellular) 3. meiosis – sex c ...
... Cells divide to continue their life process just as multicellular organisms must reproduce – so do unicellular organisms. There are three major types of cellular reproduction: 1. binary fission – prokaryotic organisms (unicellular) 2. mitosis – eukaryotic organisms (multicellular) 3. meiosis – sex c ...
Mitosis
Mitosis is a part of the cell cycle in which chromosomes in a cell nucleus are separated into two identical sets of chromosomes, each in its own nucleus. In general, mitosis (division of the nucleus) is often followed by cytokinesis, which divides the cytoplasm, organelles and cell membrane into two new cells containing roughly equal shares of these cellular components. Mitosis and cytokinesis together define the mitotic (M) phase of an animal cell cycle—the division of the mother cell into two daughter cells, genetically identical to each other and to their parent cell.The process of mitosis is divided into stages corresponding to the completion of one set of activities and the start of the next. These stages are prophase, prometaphase, metaphase, anaphase, and telophase. During mitosis, the chromosomes, which have already duplicated, condense and attach to fibers that pull one copy of each chromosome to opposite sides of the cell. The result is two genetically identical daughter nuclei. The cell may then divide by cytokinesis to produce two daughter cells. Producing three or more daughter cells instead of normal two is a mitotic error called tripolar mitosis or multipolar mitosis (direct cell triplication / multiplication). Other errors during mitosis can induce apoptosis (programmed cell death) or cause mutations. Certain types of cancer can arise from such mutations.Mitosis occurs only in eukaryotic cells and the process varies in different organisms. For example, animals undergo an ""open"" mitosis, where the nuclear envelope breaks down before the chromosomes separate, while fungi undergo a ""closed"" mitosis, where chromosomes divide within an intact cell nucleus. Furthermore, most animal cells undergo a shape change, known as mitotic cell rounding, to adopt a near spherical morphology at the start of mitosis. Prokaryotic cells, which lack a nucleus, divide by a different process called binary fission.