Answer:
both permeable
Explanation:
the cell wall is fully permable however the the cell membrane is selectively permable, there's little to no similarities between them, mainly differences as they're from two different cells completely
<span>Narrow junctions and desmosomes have different structures. Narrow junctions are made of a protein arranged inside the membrane. There are many intersecting lines that cause the cells to be sealed and together. Desmosomes contain the protein cadherin. There are cadherins in each cell and they join at this point sealing the cells together, the tight junctions have the function of preventing the materials that circulate between the cells. The desmosomes provide binding sites for the cells to be attached.</span>
Answer:
Proteins and phospholipids make up most of the membrane structure. The phospholipids make the basic bag, while the proteins are found around the holes and help move molecules in and out of the cell.
Answer:
The answer to this definition is: ACTION POTENTIAL
Explanation:
Action potential is a phenomenon in nervous system used to describe a change in electrical current that occurs when an impulse passes through a neuron or nerve cell. Action potential is induced when sodium (Na+) ions move from the extracellular environment into the intracellular environment.
Impulse travels across the axon of a neuron and thereby causes a difference in the electric potential i.e. - mv to + mv. This process, according to this question, whereby a change in electrical potential occurs due to the passage of an impulse through a nerve cell is termed ACTION POTENTIAL.
Answer:
Explanation:
A saprophyte derives its nutrients and energy form the organic matter of dead organism, wheras a parasite lives in or on another living organism and derives its nutrients and energy from that living organism.
Saprophytes derives their nutrition by feeding on dead and decaying organisms. Most saprophytes are fungus. The energy needed for performing their life functions are sourced from dead organisms. All saprophytes are therefore heterotrophs and consumers in the food chain.
Parasites are organisms that derives their nutrition from their host. They completely depend on their host to provide nourishment for them. Most parasites on the long run harms their host. An example is tapeworm and pig.
