According to the concepts of totipotency, pluripotency, and multipotency: 1. Which of the following structure has the most powerful cellular potency: Zygote? Embryo? Or fetus? Explain why.
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According to the concepts of totipotency, pluripotency, and multipotency:
1. Which of the following structure has the most powerful cellular potency: Zygote? Embryo? Or fetus?
Explain why.
Step by step
Solved in 2 steps
- Which of the following statements is correct about the three classical postulates of cell theory: I. All organisms are composed of one or more cells. (Virchow)(1858) II. The cell is the basic unit of life in all living things. (Schleiden & Schwann)(1838-39) III. All cells are produced by the division of preexisting cells. (Virchow)(1858)Is tricellular junction important in cell junction specification? https://en.wikipedia.org/wiki/Cell_junction#:~:text=Cell%20junctions%20(or%20intercellular%20bridges,the%20extracellular%20matrix%20in%20animals.1. Lysosome is regarded as a body that is covered by membrane, a little smaller than mitochondrion and functions as storage for several hydrolytic enzymes. The enzymes in lysosome can digest substances that are engulfed by the cell and under certain conditions can destroy the cell itself. (a) Name ONE type of cell in the human body that contains many lysosomes. Explain why the cell contains many lysosomes. (b) State ONE different between the lysosome membrane and the mitochondrion membrane. (c) State ONE special feature of the lysosome membrane. (d) Explain how lysosome acts to release its enzymes in the cell.
- 9. Recall that many cells have polarity (as in directionality, in this case). Consider the apical location of a particular protein (A) expressed in epithelial cells, illustrated in the figure above. Which type of defect described below is the most likely to cause the redistribution of that protein around the entire cell? A) A nonfunctional enzyme glycosylase. B) The deletion of a junctional protein. C) The truncation of a protein found in the extracellular matrix. D) A nonfunctional flippase. Answer: Explanation: apical plasma membrane lateral plasma membrane basal plasma membrane basal lamina protein A tight junction-Mature parent cell Budding- cell 1 μη Test II. Examine the micrograph of the yeast cells. The scale bar under the photo is labeled 1 um. The scale bar works in the same way as a scale on a map, where, for example, 1 inch equals 1 mile. In this case the bar represents one thousandth of a millimeter. Using the scale bar as a basic unit, determine the diameter of the mature parent cell and the new cell. Start by measuring the scale bar and the diameter of each cell. The units you use are irrelevant, but working in millimeters is convenient. Divide each diameter by the length of the scale bar and then multiply by the scale bar's length value to give you the diameter in micrometers.The cell theory was developed over many years. What are its four basic concepts?
- TRUE / FALSE (if false put the correct word in) Voltage-gated sodium channels open to allow the influx of positive ions to move the vesicles containing neurotransmitters in synaptic transmission. During cleavage, daughter cells become smaller and smaller as interphase consists of S phase only. The inner cell mass consists of pluripotent cells.What are the four assumptions of the cell theory?35: Which of the following statements makes it necessary for animal cells, although they have no cell walls, to have intercellular junctions? Cell-to-cell communication requires physical attachment of one cell to another. Maintenance of connective tissue shape requires cells to adhere to one another. Cell membranes do not distinguish the types of ions and molecules passing through them. Large molecules, especially proteins, do not readily get through one, much less two adjacent cell membranes. 21: Living things are made up of cells. Cells are organized at different levels to form very complex living organisms like your body. Each level has a specific role or job to perform. Which of the following correctly describes the order of organization from the simplest to the most complex? tissues, cells, organs, organisms, organ systems cells, tissues, organs, organ systems, organisms organs, organ systems, organisms, cells, tissues organisms,…
- (AKS 1b1 / DOK 2) Patients with a genetic condition known as cystic fibrosis struggle with symptoms such as lung and digestive problems. The cells of patients with the disease do not transport water or other materials out of the cell efficiently. Therefore, patients' cells have a build up of water and other substances inside the cell. Which of the following BEST describes how cystic fibrosis impacts cells? O A. Cystic fibrosis affects the cell membrane increasing cellular transport and homeostasis B. Cystic fibrosis affects the lysosomes increasing cellular transport and homeostasis C. Cystic fibrosis affects the Golgi decreasing cellular transport and homeostasis D. Cystic fibrosis affects the cell membrane decreasing cellular transport and homeostasis E:17 AM P Type here to search IOI & 7 %23 3 $ 4 RGive the biological terms for (a) cellular reproduction and (b) cell death.Match the organelle/cellular component to its function: Contains enzymes that break down and digest unneeded cellular components, such as a damaged organelle (can be thought of as part of the "wrecking crew". 6 3 X *** Jelly-like fluid inside the cell. Makes and modifies proteins destined for the cell membrane or for export from the cell Packages and delivers proteins and lipids. Cellular respiration takes place here. It is the "energy transformer" of the cell". Membrane-bound "container" used for transporting substances. Neutralize poisons such as alcohol. Scaffolding of the cell. Synthesizes lipids and steroid hormones. Used for movement of cells. 2. Ribosome 3. Smooth Endoplasmic Reticulum 4. Golgi Apparatus Cytosol 5. Vesicle 6. 7. 8. 9. Lysosome Mitochondria Cilia and Flagella Cytoskeleton 10. Rough endoplasmic reticulum 11. peroxisome