13 Label the pictures in the diagram by selecting the correct response from the drop down menu. Cells prokaryotic cells eukaryotic cells bacteria cells animal cells plant cells
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- Prokaryotes stain as Gram-positive or Gramnegative because of differences in the cell wall cytoplasm nucleus chromosome2. Write PRESENT if the organelle in column 1 can be found in prokaryotes (column 2) and eukaryotes(column 3), otherwise write ABSENT. ORGANELLE PROKARYOTE EUKARYOTE Nucleus Cell membrane/plasma membrane Cytoplasm Flagella Mitochondria Endoplasmic reticulum Ribosome Vacuole ChloroplastsIn the diagram below, identify the structures of a cyanobacterial cell based on the following descriptions: a) Outer cellular covering which includes: Mucilaginous layer – outermost layer covering the cell wall; protects the cell from harmful factors of the environment Cell wall – found just below the mucilaginous layer; 2 or 3-layered, the inner layer lies in between the outer wall layer and plasma membrane; the outer layer is made of peptidoglycan Innermost plasma membrane – selectively permeable membrane enclosing the cytoplasm b) Cytoplasm – found below the plasma membrane; the protoplasm which contains structures of different shapes and functions. Lamellae, which contain pigments such as chlorophylls, carotenes, xanthophylls, phycoerythrin and phycocyanin, are located in the peripheral region of cytoplasm. Ribosomes may also be found scattered in the cytoplasm. c) Nucleic material – the nucleoplasm that is centrally located in the cell and contains chromatin in the form…
- 14 Question 18 Il Pause Q Zoom Q Review /v Finish Te ABG Section 1 - Question 18 Directions: The picture below shows cells being viewed through a scanning electron microscope. The microscope is set at an extremely high magnification in order to view the cells that are less than 2 micrometers in size. Use the picture to answer any questions that Which type of cells are most likely shown in this picture? prokaryotic cells, because they lack a nucleus even when viewed under follow. high magnification eukaryotic cells, because they are round and clustered when viewed under high magnification prokaryotic cells, because they are large enough to be seen under a scanning electron microscope eukaryotic cells, because some appear to be dividing even when viewed under high magnification D ©2021 IIluminate EducationTM, Inc e 9 0 10:2904.PMA.Blology Which of these comparisons correctly characterizes prokaryotic and eukaryotic cells? OOnly prokaryotic cells have flagella, while only eukaryotic cells have cilia. O Only prokaryotic cells have cell membranes, while only eukaryotic cells have cell walls. OOnly prokaryotic cells have chloroplasts, while only eukaryotic cells have mitochondria. OOnly prokaryotic cells have free DNA, while only eukaryotic cells have membrane-bound DNA.Find and label the cell wall, cytoplasm, vacuole bounded by tonoplast, nucleus (if visible) of this plasmolyzed cell.
- Many of the first prokaryotes to be cultured in a scientific lab were human or animal pathogens. Why would these species he more readily cultured than non-pathogenic prokaryotes? Pathogenic prokaryotes are hardier than non-pathogenic prokaryotes Non-pathogenic prokaryotes require more supplements in their growth media Most of the necessary culture conditions could be inferred for pathogenic prokaryotes Pathogenic bacteria can grow as free bacteria, but non-pathogenic bacteria only grow as parts of large colonies.The cell wall is ___________ . interior to the cell membrane exterior to the cell membrane a part of the cell membrane interior or exterior depending on the particular cellProkaryotes depend on to obtain some materials and to get rid of wastes. ribosomes flagella cell division diffusion
- Figure 13.6 Which of the following statements is true? a. Gram-positive bacteria have a single cell wall formed from peptidoglycan. b. Gram-positive bacteria have an outer membrane. c. The cell wall of Gram-negative bacteria is thick, and the cell wall of Gram-positive bacteria is thin. d. Gram-negative bacteria have a cell wall made of peptidoglycan, while Gram-positive bacteria have a cell wall made of phospholipids.The presence of a membrane-enclosed nucleus is a characteristic of. prokaryotic cells eukaryotic cells all cells virusesFigure 22.16 Which of the following statements is true? Gram-positive bacteria have a single cell wall anchored to the cell membrane by lipoteichoic acid. Pori ns allow entry of substances into both Gram-positive and Gram-negative bacteria. The cell wall of Gram-negative bacteria is thick, and the cell wall of Gram-positive bacteria is thin. Gram-negative bacteria have a cell wall made of peptidoglycan, whereas Gram positive bacteria have a cell wall made of lipoteichoic acid.
