Exam Review Notes
... DNA must be copied (replicated), so that when one cell divides into two cells each cell gets a copy of all the DNA, located in the nucleus. Each thin strand of DNA called “ chromatin”, is copied or replicated, so that there are two sets of DNA. The copies of chromatin stay uncoiled for a while. The ...
... DNA must be copied (replicated), so that when one cell divides into two cells each cell gets a copy of all the DNA, located in the nucleus. Each thin strand of DNA called “ chromatin”, is copied or replicated, so that there are two sets of DNA. The copies of chromatin stay uncoiled for a while. The ...
ANATOMY LECTURE EXAM 1
... 10. Which of the following tissues is voluntary and striated? a. stratified squamous epithelium b. simple squamous epithelium c. cardiac muscle d. dense irregular connective tissue e. skeletal muscle 11. Centers of ossification contain predominately _____. a. chondroblasts b. osteocytes c. osteobla ...
... 10. Which of the following tissues is voluntary and striated? a. stratified squamous epithelium b. simple squamous epithelium c. cardiac muscle d. dense irregular connective tissue e. skeletal muscle 11. Centers of ossification contain predominately _____. a. chondroblasts b. osteocytes c. osteobla ...
Specialized Cells, Tissues, Organs And Organ Systems
... living things are organized as well as humans. The hierarchy of structures starts with the smallest part (a cell) and works up to the largest structure which is the whole body of a living thing. This includes plants, animals, and other microscopic organisms that are MULTICELLULAR. Unicellular or ...
... living things are organized as well as humans. The hierarchy of structures starts with the smallest part (a cell) and works up to the largest structure which is the whole body of a living thing. This includes plants, animals, and other microscopic organisms that are MULTICELLULAR. Unicellular or ...
OB41 - OB42
... may harm cells if not removed • examples of toxic substances are carbon dioxide and urea www.juniorscience.ie ...
... may harm cells if not removed • examples of toxic substances are carbon dioxide and urea www.juniorscience.ie ...
Chapter 1: Cells, Reproduction, and Heredity
... • Nerves in your hand send a message to the spinal cord. • A reflex takes place when nerves in the spinal cord send signals to muscles in your hand that cause you to jerk it off the stove. • Nerves send a message up the spinal cord. • The brain receives pain from the burn. ...
... • Nerves in your hand send a message to the spinal cord. • A reflex takes place when nerves in the spinal cord send signals to muscles in your hand that cause you to jerk it off the stove. • Nerves send a message up the spinal cord. • The brain receives pain from the burn. ...
ZOO 362-COMPARATIVE ANIMAL PHYSIOLOGY The study
... Neurons are primary structural and functional unit of the nervous system which consists morphologically of CELL BODY which may be oval or irregularly star shaped. Each neuron has one to many DENDRITES; usually transmits impulses toward the cell body. In addition are the AXONS which transmits impulse ...
... Neurons are primary structural and functional unit of the nervous system which consists morphologically of CELL BODY which may be oval or irregularly star shaped. Each neuron has one to many DENDRITES; usually transmits impulses toward the cell body. In addition are the AXONS which transmits impulse ...
DOC
... 3. Endoplasmic Reticulum (ER) It is a network of folded membranes forming sheets, tubes or flattened sacs in the cytoplasm. The function of ER is for transport of large molecules inside the cell and other metabolism. It can provide a structural skeleton to maintain cellular shape. a) Rough ER ER att ...
... 3. Endoplasmic Reticulum (ER) It is a network of folded membranes forming sheets, tubes or flattened sacs in the cytoplasm. The function of ER is for transport of large molecules inside the cell and other metabolism. It can provide a structural skeleton to maintain cellular shape. a) Rough ER ER att ...
Cells
... A. mitochondrion B. vacuole C. chloroplast D. endoplasmic reticulum 2. Some prokaryotes and eukaryotes have whip-like projections that help propel the cell through liquid. What is the name of this whip-like projection? A. a cilium B. a villus C. a flagellum D. a pilus 3. Which of the following organ ...
... A. mitochondrion B. vacuole C. chloroplast D. endoplasmic reticulum 2. Some prokaryotes and eukaryotes have whip-like projections that help propel the cell through liquid. What is the name of this whip-like projection? A. a cilium B. a villus C. a flagellum D. a pilus 3. Which of the following organ ...
doc
... All of the autosomal cells of a given organism share the same genetic material (the organism’s genome) Differentiation and morphogenesis result from differences in gene expression among cells, i.e., different portions of the common genome are expressed in different cells Differentiation occurs as ti ...
... All of the autosomal cells of a given organism share the same genetic material (the organism’s genome) Differentiation and morphogenesis result from differences in gene expression among cells, i.e., different portions of the common genome are expressed in different cells Differentiation occurs as ti ...
Chapter 3 The Basic Structure of a Cell
... and lower it until it contacts the liquid. The liquid should spread across the whole area of the cover slip. • Never use a slide under the microscope without a cover slip. Its major purpose is to protect the objective lens for the liquid on the slide. • Unless otherwise instructed, wipe the sample a ...
... and lower it until it contacts the liquid. The liquid should spread across the whole area of the cover slip. • Never use a slide under the microscope without a cover slip. Its major purpose is to protect the objective lens for the liquid on the slide. • Unless otherwise instructed, wipe the sample a ...
Zoology * Chapter 9 * Multicellular and Tissue Levels of Organization
... contains the __________ and hollow, oral tentacles. Anemones have limited __________________. They glide on their pedal disks, crawl on their sides, and walk on their __________________. Anemones feed on invertebrates and __________. Anemones have both __________________ and __________________ repro ...
... contains the __________ and hollow, oral tentacles. Anemones have limited __________________. They glide on their pedal disks, crawl on their sides, and walk on their __________________. Anemones feed on invertebrates and __________. Anemones have both __________________ and __________________ repro ...
lecture1 - University of Agriculture, Abeokuta
... clear line of demarcation between the buccal cavity and the next region, the pharynx, but developmentally the former is lined with ectoderm and the latter by endoderm. The two regions can be called the bucco-pharyngeal region. ...
... clear line of demarcation between the buccal cavity and the next region, the pharynx, but developmentally the former is lined with ectoderm and the latter by endoderm. The two regions can be called the bucco-pharyngeal region. ...
Unit 2 – Cells and Systems
... Small organisms are made of small microscopic cells; large organisms are made up of cells. ...
... Small organisms are made of small microscopic cells; large organisms are made up of cells. ...
tissues
... • Smooth muscle contracts more slowly than skeletal muscle but can remained contracted for a longer period. ...
... • Smooth muscle contracts more slowly than skeletal muscle but can remained contracted for a longer period. ...
files/Ch 29 Study Guide
... 1. What type of parenchyma cell is found in the nonwoody parts of plants, and what are the functions of this cell type? _____________________________________ _________________________________________________________________ 2. Describe the appearance, primary function, and location of collenchyma ce ...
... 1. What type of parenchyma cell is found in the nonwoody parts of plants, and what are the functions of this cell type? _____________________________________ _________________________________________________________________ 2. Describe the appearance, primary function, and location of collenchyma ce ...
Review Guide for Body Systems and Cells Test
... Key Concept 1: Each organelle has a different and specific job that the others rely on for the total survival of the cell, like the waste removal role of the lysosome. Key Concept 2: The function of each organelle’s essential task can be compared with the functions of organisms to obtain energy, suc ...
... Key Concept 1: Each organelle has a different and specific job that the others rely on for the total survival of the cell, like the waste removal role of the lysosome. Key Concept 2: The function of each organelle’s essential task can be compared with the functions of organisms to obtain energy, suc ...
Page 1 Edexcel 2011 Biology B2 Topic 1 The building blocks of
... 1.20 Recall that stem cells in the embryo can differentiate into all other types of cells, but that cells lose this ability as the animal matures 1.21 Demonstrate an understanding of the advantages, disadvantages and risks arising from adult and embryonic stem cell research 1.22 Describe how the ord ...
... 1.20 Recall that stem cells in the embryo can differentiate into all other types of cells, but that cells lose this ability as the animal matures 1.21 Demonstrate an understanding of the advantages, disadvantages and risks arising from adult and embryonic stem cell research 1.22 Describe how the ord ...
Characteristics Eukaryotic Cells
... not found in, or are different from, the eukaryote? Nucleus Cell Membrane Cell Wall Endoplasmic Reticulum Golgi Vesicles Mitochondria Ribosome Cytoskeleton For a drug target you want to be able to target the parasite and not the host! ...
... not found in, or are different from, the eukaryote? Nucleus Cell Membrane Cell Wall Endoplasmic Reticulum Golgi Vesicles Mitochondria Ribosome Cytoskeleton For a drug target you want to be able to target the parasite and not the host! ...
Review 2 - Allen ISD
... a. A newly formed daughter cell has less DNA than its parent cell. b. Cells divide at random times. c. New cells formed by cell division can replace dying cells in an organism. d. The phases of cell division can occur in any order. ...
... a. A newly formed daughter cell has less DNA than its parent cell. b. Cells divide at random times. c. New cells formed by cell division can replace dying cells in an organism. d. The phases of cell division can occur in any order. ...
Wipe Out
... a. A newly formed daughter cell has less DNA than its parent cell. b. Cells divide at random times. c. New cells formed by cell division can replace dying cells in an organism. d. The phases of cell division can occur in any order. ...
... a. A newly formed daughter cell has less DNA than its parent cell. b. Cells divide at random times. c. New cells formed by cell division can replace dying cells in an organism. d. The phases of cell division can occur in any order. ...
Wipe Out
... a. A newly formed daughter cell has less DNA than its parent cell. b. Cells divide at random times. c. New cells formed by cell division can replace dying cells in an organism. d. The phases of cell division can occur in any order. ...
... a. A newly formed daughter cell has less DNA than its parent cell. b. Cells divide at random times. c. New cells formed by cell division can replace dying cells in an organism. d. The phases of cell division can occur in any order. ...
Neuronal lineage marker
A Neuronal lineage marker is an endogenous tag that is expressed in different cells along neurogenesis and differentiated cells as neurons. It allows detection and identification of cells by using different techniques. A neuronal lineage marker can be either DNA, mRNA or RNA expressed in a cell of interest. It can also be a protein tag, as a partial protein, a protein or a epitope that discriminates between different cell types or different states of a common cell. An ideal marker is specific to a given cell type in normal conditions and/or during injury. Cell markers are very valuable tools for examining the function of cells in normal conditions as well as during disease. The discovery of various proteins specific to certain cells led to the production of cell-type-specific antibodies that have been used to identify cells.The techniques used for its detection can be immunohistochemistry, immunocytochemistry, methods that utilize transcriptional modulators and site-specific recombinases to label specific neuronal population, in situ hybridization or fluorescence in situ hybridization (FISH). A neuronal lineage marker can be a neuronal antigen that is recognized by an autoantibody for example Hu, which is highly restricted to neuronal nuclei. By immunohistochemistry, anti-Hu stains the nuclei of neurons. To localize mRNA in brain tissue, one can use a fragment of DNA or RNA as a neuronal lineage marker, a hybridization probe that detects the presence of nucleotide sequences that are complementary to the sequence in the probe. This technique is known as in situ hybridization. Its application have been carried out in all different tissues, but particularly useful in neuroscience. Using this technique, it is possible to locate gene expression to specific cell types in specific regions and observe how changes in this distribution occur throughout the development and correlate with the behavioral manipulations.Although immunohistochemistry is the staple methodology for identifying neuronal cell types, since it is relatively low in cost and a wide range of immunohistochemical markers are available to help distinguish the phenotype of cells in the brain, sometimes it is time-consuming to produce a good antibody. Therefore, one of the most convenient methods for the rapid assessment of the expression of a cloned ion channel could be in situ hybridization histochemistry.After cells are isolated from tissue or differentiated from pluripotent precursors, the resulting population needs to be characterized to confirm whether the target population has been obtained. Depending on the goal of a particular study, one can use neural stem cells markers, neural progenitor cell markers, neuron markers or PNS neuronal markers.