Which of the following is NOT a property or function of the cell membrane? A) The cell membrane performs selective permeability and acts as a gatekeeper only allowing certain molecules to enter the cell. B) Metabolic reactions such as the production and breaking of chemical bonds occurs on the cell membrane. C) The cell membrane provides a barrier to the extracellular matrix and structural support for the shape of the cell. D) All of the above are components that define the cell membrane.
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The question asks to identify which statement is NOT a property or function of the cell membrane. This means we need to find the incorrect statement among the given options. Show more…
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#3. Among the Functions of the cytoplasmic membrane we can count: A. All the Above B. Photosynthesis: All membranes have photosynthetic pigments on foldings called chromatophores C. ATP production: Contains enzymes that produce ATP D. Selective permeability: allows the passage of all molecules. #5. What will happen to a plant cell if placed in a hypertonic solution? A. The cell will become crenated. B. The cell will undergo lysis. C. The cell will swell slightly. D. The cell will undergo plasmolysis. E. The cell will remain unchanged. #11. Which of the following statements regarding the effect of cellular pH are true? A. Intracellular pH is a non-critical factor of the intracellular environment. B. b and c C. Cells can be affected by changes in intracellular pH. D. Cells have developed different mechanisms for regulating intracellular pH. #14 What is required for facilitated diffusion to take place? A. energy from ATP B. a transmembrane protein C. movement down a concentration gradient D. the transport of small nonpolar molecules E. the transport of large food particles #15. In the cell membrane: A. None. B. Its components can be destroyed by antibiotics (polymyxins) or by disinfectants (alcohol, quaternary ammonium compounds). C. Phospholipids move freely for various functions. D. Proteins keep a rigid structure that cannot be changed or moved laterally.
Adi S.
The cell membrane performs which of the following function(s) in a bacterium? - It retains the cytoplasm and its contents. - It acts as a selectively permeable barrier. - It provides the location for a variety of metabolic processes performed by the cell. - All of the above. The chemical make-up of the cortex of the spore is closest to the chemical make-up of the: - Cell wall - Cell membrane - Chromosome - Ribosome Which of the following must have energy to take place? - Osmosis - Passive diffusion - Facilitated diffusion - Active transport Hepatitis would be an ___________ virus because it infects an organ.
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