What is the difference between \"free\" and \"attached\" ribosomes? Free ribosom

Question

What is the difference between "free" and "attached" ribosomes? Free ribosomes are in the cytoplasm, whereas ribosomes are anchored to the endoplasmic Free ribosomes produce proteins in the cytosol, whereas attached ribosomes produce proteins that are exported from the cell. Free ribosomes produce proteins that are exported from the cell, whereas attached ribosomes produce problems is cytosol. Both A and B Both A and C A cell the following molecules and structures: enzymes, DNA, ribosomes, plasma membrane and mitochondria. It be a cell from a bacterium. an animal, but not a plant. a plant, but not an animal. a plant or an animal. any kind of organism. What is the voltage across a membrane called? water potential chemical gradient membrane potential osmotic potential shock potential Secondary active transport is associated with a symport protein can drive the transport of glucose against its concentration gradient uses ATP directly A and B A, B, and C Tay-Sachs disease is a human genetic abnormality that results in cells accumulating and becoming clogged with very large, complex, undigested lipids. Which organelle must be involved in this condition? the endoplasmic reticulum the Golgi apparatus the lysosome mitochondrion nucleus The major factor limiting cell size is the concentration of water in the cytoplasm. need for energy. presence of membrane-enclosed organelles. ratio of surface area to volume composition of the plasma membrane Cytochalasin D is a drug that prevents actin polymerization. A cell treated with cytochalasin D will still be able to. divide in two contract muscle fibers undergo cell migration cell move vesicles within a cell None of the above

Explanation / Answer

6) D Both A and B.

Free ribosomes are located in the cytoplasm freely floating.Bound ribosomes are attached to the surface of the endoplasmic reticulum. The endoplasmic reticulum to which ribosomes are attached is called rough endoplasmic reticulum.Free ribosomes float in the cytosol make proteins are used in the cell. Attached ribosomes attached to ER make proteins are either used inside the cell or are transported outside the cell.

7) D A plant and an animal.

All eukaryotic cells have molecules and structures like as enzymes, DNA, ribosomes, plasma membrane and mitochondria. Both plants and animals are eukaryotes.

8) C Membrane potential.

Nerve cells have cell membrane potentials because of the differences in potassium and sodium ions in and outside of their cells. These ions are electrolytes, which can pass through the selectively permeable membrane of nerve cells to create a voltage-driven gradient.

9) D. A and B

secondary active transport include symport. The transport proteins responsible for secondary active transport are referred to as secondary active transporters. It utilizes the Na+ electrochemical gradient to drive the uphill transport of glucose into the cell. secondary active transport consumes ATP to generate the gradient down which a molecule is moved, the energy is not directly used to move the molecule across the membrane.

10) C The lysosome.

Lysosomes have lysosomal enzymes,which can hydrolyse proteins, fats, polysaccharides, and nucleic acids.The lysosomes lack sufficient amounts of enzymes necessary for the metabolism of
lipids.

11) D. Ratio of Surface area to Volume.

When the size of a cell increases, then Cell volume and Surface area of the cell increases.

12) D Move vesicles within a cell.

Transport vesicles can move molecules between locations inside the cell, e.g., proteins from the rough endoplasmic reticulum to the Golgi apparatus.

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