When proteins move cargo throughout the cell, they do so via the (a) __________ of the cytoskeleton. These proteins are composed of double (b)_________  which allow roation. Each 'head' can attach to the microtubule when bound to (c)_____________ . When ATP is hydrolysed, there is a  (d) ____________ where the angle of the head changes and the cargo moves along the microtubule. Then, the second head binds and the process repeats.

Trace the cytoplasmic route of a protein that the cell will utilise. Please number the steps in the cell in the order they appear. To get full credit, you must explain each organelle and transport vesicle through which the product passes, as well as how each organelle alters the protein in detail.

IN the figure for D: The organization of a protein that normally resides in the plasma membrane in shown in the figure below. The boxes labeled 1,2 3 and 4 represent membrane-spanning sequences and the arrow represents a site of action of signal peptidase. Given this diagram, which of the following statements must be true? (C) (D) oplasmic Reticulum The N-terminus of this protein is in the ER lumen The mature version of this protein will span the membrane twice, with both the N- and C-terminus in the cytoplasm. Two of the answers are correct The C-terminus of this protein is in the ER lumen

Lysosomes are involved in the following: a. Na-K-ATPase Protein Pump O b. Phagocytosis O c. Pinocytosis d. Exocytosis Oe. All of the Above

The following table depicts the rate of transport of a molecule into a cell as the external concentrations are changed. Based on what you know about the characteristics of membrane transport, the molecule is most likely transported by: a) passive transport b) simple diffusion across the membrane c) facilitated diffusion d) active transport

Pinocytosis can bring all of the following substances into most eukaryotic cells, with the exception of: the human immunodeficiency virus (HIV) vitamin B12 an erythrocyte (red blood cell) iron the influenza virus

An antibiotic kills bacterial cells by preventing export of hydrogen ions from the cytoplasm across the cell membrane to the cell exterior. Shortly before, bacteria with flagella that are treated with the antibiotic die, they become unable to move. Suggest a reasonable explanation for this loss of mobility. Describe the process/s involved in movement of flagella? Give typing answer with explanation and conclusion

Name three possible routes for a substance to be degraded by the lysosome

In eukaryotic cells, metabolic pathways occur in specific locations, such as the mitochondrion or the cytosol.What sort of transport processes are required as a result?

Facilitated diffusion and active transport are two different mechanisms that the cells use to transport molecules into and out of the cell. Compare and contrast these two types of cellular transport.