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- The cell theory is a list of ideas that describe the functions and importance of cells in living organisms. Which of the following statements is not a part of the cell theory? a) Cells divide to make copies of themselves. b) Cells can form from non-living matter. c) All living things are made of one or more cells. d) Cells are the smallest unit of life.Which of the following statements about cell membranes is NOT true? A) Membranes are sheet like structures, only two molecules thick, that form closed boundaries between different compartments. B) Membranes consist mainly of lipids and proteins. C) Membranes are very rigid, impermeable structures Membrane lipids are small molecules that have both hydrophilic and hydrophobic moieties. D)Which 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 H
- How many different cell types are found in the human body?What are considered as "Organelles for structural support, movement, and communication between cells"?Which of the following statements describes the function of plasma membranes? I. define the boundaries of the cell and its organelles and act as permeability barriers II. sites for specific biological and chemical functions III. possess transport proteins that regulate the movement of substances into and out of the cell and its organelles IV. contain protein molecules that act as receptors to detect external signals V. provide mechanisms for cell-to-cell contact, adhesion, and communication A. I and III B. I, III, IV C. I, III, IV, V D. I, II, III, IV, V
- Epithelial Tissue: Cell-Cell junctions: Which cell-cell junction attaches to the basal lamina? a) tight b) gap c) hemidesmosome d) desmosome Pick two (2) of your favorite cell-cell junctions, and draw and label them in the space below: Epithelial Tissue: Other shapes and cell types: Match the type of epithelial tissue with where it's found in the body: stratified squamous kidney ducts transitional stratified cuboidal Text Predictions: On Epithelial Tissue: Secretion Types: Match the secretion type with its mechanism: Merocrine Apocrine Holocrine skin urinary bladder entire cell becomes secretion exocytosis apical part of cell pinches off Draw your favorite secretion type in the space below: FocusDo membranes form only the outer wrapping of cells?Which of the following statements is NOT TRUE about tissues? A. The extracellular matrix of blood tissue is the plasma B. In adipose tissue, tiny cells are surrounded by very thick extra cellular matrix which is where all the fat is located C. Epithelial cells sometimes have cilia like the ones used in comb jellies and placozoans D. Nervous Tissue has only one cell type, the neuron
- Which of the below statements correctly describes the extracellular matrix? a)A layer that facilitates connections and communications with other cells in a tissue b)A gel like substance that resists compression c)All of the other answers are correct d)a complex mix of proteins and polysaccharides.Draw plant, animal and prokaryotic cells with its organelles (for those that have them) and define the functions of the organelles. Identify the location of ribosomes. What is found in ALL cells?Which of the following is NOT an accurate description for epithelial cells? a. glycoprotein-covered b. interconnected c. held together by tight junctions d. symmetrical