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Muscles
Muscles

... ________________ ______________ _____________. 28. The fine sheath of connective tissue surrounds each individual muscle fiber is the _______________. 29. The endomysium-wrapped fibers are grouped into ________________ bundles. 30. The surrounding layer of tissue around those is called _____________ ...
Collagen Binding Proteins Derived from the Embryonic Fibroblast
Collagen Binding Proteins Derived from the Embryonic Fibroblast

... eluted from collagen affinity columns by synthetic peptides containing the amino acid sequence arginyl-glycyl-aspartic acid (RGD). These data show that a number of collagen binding proteins exist on the embryonic fibroblast cell surface. Some of the proteins may be collagen receptors binding to RGD ...
Anatomy and Physiology II
Anatomy and Physiology II

... control, however, is much ___________________________ than that of the _______________________, the other major body system that acts to maintain homeostasis. Perhaps the reason for this is that the endocrine system uses chemical messengers, called ________________ instead of __________________. The ...
BACTERIA AND VIRUS REVIEW SHEET ANSWER KEY 1. In the
BACTERIA AND VIRUS REVIEW SHEET ANSWER KEY 1. In the

... Explain how the cell type in prokaryotes differs from that in eukaryotes. Prokaryotes do not have nuclei or organelles, but eukaryotes do have a nucleus and other organelles (vacuoles, chloroplast, etc) Why are viruses considered nonliving? They cannot reproduce on their own, they do not grow, and t ...
Chapter 4 Notes
Chapter 4 Notes

... exposed to both the inside of the cell and the exterior environment. Others extend only to the inside or only to the exterior surface. 5. There are many kinds of Proteins in membranes; they HELP to MOVE Material INTO and OUT of the Cell. 6. Some Integral Proteins form Channels or Pores through which ...
Embryology
Embryology

... The Second Week (characterized by the five 2s) -Embryoblast differentiates into two layers. What are they (both names)? -This structure is referred to as what type of disc? -Fluid accumulation in one of the layers (which one?) forms what structure? -The surrounding cells are now named differently. H ...
Antibiotics - MBBS Students Club | Spreading medical
Antibiotics - MBBS Students Club | Spreading medical

... A glycopeptide that inhibits cell wall synthesis by blocking transpeptidation but by a mechanism different from that of the β-lactam drugs. It binds directly to the D-alanyl-D-alanine portion of the pentapeptide, which blocks the transpeptidase from binding, whereas the beta-lactam drugs bind to the ...
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... neurons, through which, sensory stimuli & motor impulses pass b/w brain and other parts of the body. ...
Na - Thunderbird High School
Na - Thunderbird High School

... • Intercellular joining • Attachment to the cytoskeleton and extracellular matrix (ECM) ...
BIO XXX - Stephen F. Austin State University
BIO XXX - Stephen F. Austin State University

... Learning Outcome #1: Demonstrate a good knowledge base in biological concepts and be able to integrate knowledge with critical thinking skills to become problem solvers. Knowledge base will include: levels of complexity (molecular/cellular through population/communities/ecosystems); biological princ ...
The Vacuole - Konner Aldridge Enterprises
The Vacuole - Konner Aldridge Enterprises

Little Things
Little Things

... rigid. As in animal cells, vacuoles are also used for storage. Chloroplast Plant cells also contain chloroplast, which converts sunlight to food. This is the site of photosynthesis. Nucleus The nucleus contains the cell’s DNA. ...
SlidingFilamentModel2
SlidingFilamentModel2

... proteins understood as great and early breakthrough in cell/molecular biology— lots of protein available, (like Hemoglobin) I normally cover neurons and muscle together as part of unit on movement—see website ...
Transport Within Cells
Transport Within Cells

... membrane. The cell membrane is made of two layers of lipid molecules with proteins in it. When molecules move from an area of higher concentration to an area of lower concentration across the membrane, it is called diffusion. It occurs without the cell spending any energy. When water diffuses throug ...
BioH Ch7 sec1 PPT
BioH Ch7 sec1 PPT

... The Cell Theory In 1838, Matthias Schleiden concluded that all plants were made of cells. In 1839, Theodor Schwann stated that all animals were made of cells. In 1855, Rudolph Virchow concluded that new cells were created only from division of existing cells. These discoveries led to the cell theory ...
Active Transport Quiz Answers
Active Transport Quiz Answers

... Active  transport  is  the  movement  of  molecules  across  a  membrane  during  which   molecules  move  from  an  area  of  low  concentration  to  an  area  of  high  concentration.   ...
Plants and the Logic of Development
Plants and the Logic of Development

... and necessity in the evolution of developmental mechanisms. So, do plants and animals use the same genes for the same developmental processes, or is everything different? Part of the answer is known, but only part. So far, it seems that the general cellular functions of plants and animals are homolo ...
factors affecting growth of plant tissue
factors affecting growth of plant tissue

... Morphogenetic responses may be induced in organisms by hormones, by environmental chemicals ranging from substances produced by other organisms to toxic chemicals or radionuclides released as pollutants, and other plants, or by mechanical stresses induced by spatial patterning of the cells. ...
Intro Neurology
Intro Neurology

... channels than Na+, and this helps to create the electrochemical gradients that exist. Facilitated diffusion. 5. Sodium-potassium exchange pump- pumps 3 Na+ out and 2 K+ in; constantly working; helps to establish and maintain the electrochemical gradients that exist. Active transport. B. The nerve ce ...
Cultural Morphology File
Cultural Morphology File

... of Bacterial Cells Bacteria are prokaryotic, unicellular microorganisms, which lack chlorophyll pigments. The cell structure is simpler than that of other organisms as there is no nucleus or membrane bound organelles. Due to the presence of a rigid cell wall, bacteria maintain a definite shape, thou ...
Intro to Diffusion - Biology Fall Semester
Intro to Diffusion - Biology Fall Semester

AFM of cell organelles
AFM of cell organelles

... remarkable. • The results of evolution often converge on limited constituents or principles. • For example, the same material component will be found just slightly but effectively varied to obey different functions in the same organism (e.g. collagen occurs in bones, skin, tendons and the cornea). ...
الشريحة 1
الشريحة 1

... = cis side, t = trans side. Arrowheads point to the trans Golgi network. The swollen endoplasmatic reticulum (ER) is typical for this cell. On the ER, ribosomes can be recognized, except in the area where vesicles bud off. (By D. G. Robinson, Heidelberg.) ...
Project 1: Cells
Project 1: Cells

... ribosomes are on the membrane surface. Smooth and Rough ER have different functions. Smooth ER is important in the production of fats and membrane proteins. Rough ER is important in the synthesis of other proteins. 7. Vacuole a. Membrane bound organelles that store substances for the cell. b. Vacuol ...
Mycelium (n) - Madeira City Schools
Mycelium (n) - Madeira City Schools

... the cell walls of plants (however, it remains enclosed in the plasma membrane of the plant). Mycorrhizae – mutualistic relationship between plant roots and fungi -- Plant provides fungus with a steady supply of sugar -- Fungus increases the suface area for water uptake and also supplies plant with p ...
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Extracellular matrix



In biology, the extracellular matrix (ECM) is a collection of extracellular molecules secreted by cells that provides structural and biochemical support to the surrounding cells. Because multicellularity evolved independently in different multicellular lineages, the composition of ECM varies between multicellular structures; however, cell adhesion, cell-to-cell communication and differentiation are common functions of the ECM.The animal extracellular matrix includes the interstitial matrix and the basement membrane. Interstitial matrix is present between various animal cells (i.e., in the intercellular spaces). Gels of polysaccharides and fibrous proteins fill the interstitial space and act as a compression buffer against the stress placed on the ECM. Basement membranes are sheet-like depositions of ECM on which various epithelial cells rest.The plant ECM includes cell wall components, like cellulose, in addition to more complex signaling molecules. Some single-celled organisms adopt multicelluar biofilms in which the cells are embedded in an ECM composed primarily of extracellular polymeric substances (EPS).
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