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When is a substance most likely to diffuse into a cell?
If there is the concentration of substance inside the cell is lesser than outside and cell membrane is permeable to the substance.
What processes could result in the net movement of a substance into a cell if the substance is more concentrated in the cell than in the surroundings?
Active transport or facilitated diffusion could result in the net movement of a substance into a cell if it is more concentrated inside the cell than in the surroundings. In active transport, energy is required to move the substance against its concentration gradient. In facilitated diffusion, specific carrier proteins help the substance move into the cell down its concentration gradient.
Which substance reacts with the starch grains in a potato cell and makes them more distinct in appearance?
Iodine is the substance that reacts with the starch grains in a potato cell and makes them more distinct in appearance. This reaction turns the starch grains blue-black.
Given that a nonpolar substance is more concentrated outside of a cell how does it get across a cell's plasma membrane without the expenditure of energy?
Osmosis and diffusion.
What is the most abundant substance in the cell?
Water is the most abundant substance in cells, making up approximately 70% or more of the cell's total mass. It plays a crucial role in various cellular processes, such as nutrient transport, waste removal, and maintaining cell structure.
If there is more sodium inside a cell than outside which process could the cell use to take in more sodium?
Active transport moves a substance across a membrane UP it's concentration gradient.
Is there more sodium inside a cell than outside which process could the cell use to take in more sodium?
Active transport moves a substance across a membrane UP it's concentration gradient.
If there is more sodium inside a cell than outside which process could the cell use to to take in more sodium?
Active transport moves a substance across a membrane UP it's concentration gradient.
What is the portion of the cell lying between the nucleus and the cell membrane?
The only thing in between the nucleus and cell membrane is more organelles, but mainly cytoplasm which is a jelly like substance that holds all organelles in place.
What molecule crosses a cell membrane more often than any other substance?
Water molecules cross a cell membrane more frequently than any other substance because of their small size and ability to move freely through the lipid bilayer. This process, called osmosis, allows water to maintain proper hydration levels inside the cell.
What is a substance that moves across a cell membrane without using the cells energy tends to move?
away from the area where it is more concentrated
What is the jellylike substance inside a cell that contains many cell materials such as proteins waste products and dissolved minerals?
The jellylike substance inside a cell is called cytoplasm. It fills the cell and surrounds organelles, providing a medium for chemical reactions to occur. Cytoplasm contains various molecules and structures necessary for the cell's function and metabolism.
