To review:
Match the term cytoskeleton with the most closely related descriptions given below:
DNA (deoxyribonucleic acid) replication
Flattened membrane discs, packaging
Adjacent plasma membranes bound by bands of interlocking proteins
Packaging of materials for import into cell
RNA (ribonucleic acid) and protein; protein synthesis
Control center; stores genetic information
Cell vesicles with digestive enzymes
Embedded in the plasma membrane
Internal protein framework in the cytoplasm
Introduction:
Organelles are the structures that perform several functions in the cell. Cells may differ in the organelle composition. Organelles are classified into membranous and nonmembranous organelles. The cytoskeleton is a nonmembrane bound organelle.
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EBK HUMAN ANATOMY
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- 1. Organelles are compartments inside the cells. eukarya have many more than Bacteria and Archea. a. Name three major organelles that cells in the Eukarya developed and which were still missing in the cells of the Prokarya and Archea? ……………………….. …………………… ……………………….. b. How did the eukaryote cell get mitochondria or chloroplasts? .................................................................. c. How did the eukaryote cell get a nuclear envelop? .....................arrow_forwardAs they release hydrolase that digest old and damaged cells, the term 'suicidal bags' is used by cells biologists for the (a) Golgi bodies (b) lysosomes (c) glyoxysomes (d) peroxisomesarrow_forwardcertain cells in the pancreas of animals produce and secrete insulin. Which of the following organelles would be found in abundance in these cells? a.) centrioles and spindle fibers b.) lysosomes and peroxisomes c.) rough ER and golgi apperatusarrow_forward
- The term cellular differentiation refers to (a) the loss of genes from cells. (b) the acquisition of new functional capabilities by cells. (c) the production of functionally specialized cells. (d) the division of genes among different types of cells.arrow_forwardFIBROCARTILAGE CONNECTIVE TISSUE What is the main cell type in this tissue? [ Select ] [A."fibroblast", B."osteocyte", C."adipocyte", D."chondrocyte"] How are the cells arranged? [ Select ] [A."randomly, looks like bubbles", B."in perpendicular arrangement to neighboring collagen fibers", C."sits within clearly visible thick bundles of collagen fibers within the extracellular matrix"] What is the name of the structure that houses the main cell type? [ Select ] ["A.cytohome", B."cell house", C."osteon", D."lacuane"] True or false: this cartilage type has a perichondrium. ["false", "true"] What is the location of this cartilage? [ Select ] [A."epiglottis, par of external ear, auditory tubes", B."most…arrow_forwardWhich of the following is the most fundamental feature that enables the cell to function as a distinct entity, separate from its environment? (a) nucleus (b) ribosomes (c) nucleic acids (d) plasma membrane (e) proteinarrow_forward
- RETICULAR CONNECTIVE TISSUE Describe this tissue. A. ["contains collagen fibers arranged "regularly" in bundles", B."fine interlacing network of reticular fibers and reticular cells", C."fine interlacing network of elastic fibers and chondrocytes"] What is the location where this tissue can be found? A. ["stroma of liver, spleen, lymph nodes; red bone marrow; reticular lamina of basement membrane; around blood vessels and muscles", B."forms tendons, most ligaments, aponeuroses", C."fasciae, reticular region of the dermis, pericardium, periosteum, perichondrium, joint capsules, membrane capsules around organs, heart valves"] What is the function of this tissue type? A. ["strength, elasticity, support", B."tensile strength", C."forms stroma of organs; binds smooth muscle tissue; filters and removes work out blood cells in spleen and microbes in lymph nodes"] ADIPOSE CONNECTIVE TISSUE What is the main cell type in this tissue?…arrow_forwardWhich of these structures has a simple cuboidal epithelium? G a) The structure labelled B b) The structure labelledE c) The structure labelled G O d) The structure labelled Harrow_forwardELASTIC CARTILAGE CONNECTIVE TISSUE What type of cell sits within a threadlike network, and what kind of fibers are found in the extracellular matrix? [ Select ] [A."chondrocyte within bundles of collagen fibers", B."fibroblast within bundles of elastic fibers", C.chondrocyte within bundles of elastic fibers", " D.fibroblast within bundles of collagen fibers"] What is the location of this tissue? A. ["pubic symphysis, intervertebral discs, menisci, portions of tendons", B."epiglottis, par of external ear, auditory tubes", C."most abundant cartilage in the body; ends of long bones; anterior ends of ribs, nose, parts of the larynx, trachea, bronchi, bronchial tubes, embryonic and fetal skeleton"] What is the function of this tissue? [ Select ] [A."supports and joins structures together", B."strength and elasticity; maintains shape of certain…arrow_forward
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