0
Steroids can diffuse across the cell membrane due to their lipid-soluble nature. They pass through the phospholipid bilayer of the membrane and bind to specific steroid hormone receptors inside the cell. These receptors then regulate gene expression and trigger various cellular responses.
Add your answer:
Earn +20 pts
What can you conclude about the cell membrane structure if liquid soluble molecules move across the membrane?
If liquid-soluble molecules can move across the cell membrane, it suggests that the membrane is permeable to these molecules. This could indicate that the cell membrane may contain specific channels or transport proteins that allow for the passage of these substances.
What is the barrier around the that lets substances move across it?
Cell membrane is the barrier around the cell that allows certain substances to move across it. It is selectively permeable, meaning it controls the movement of molecules in and out of the cell. This helps maintain the internal environment of the cell and ensures proper functioning.
What protein is an integral membrane protein that helps move molecules across a cell membrane?
An example of an integral membrane protein that helps move molecules across a cell membrane is a transporter protein. These proteins are embedded within the lipid bilayer and facilitate the movement of specific molecules such as ions or metabolites across the membrane through a process called facilitated diffusion or active transport.
The use of energy to move substances across a cell membrane describes?
Active transport, which requires energy in the form of ATP to move substances against their concentration gradient across a cell membrane. This process involves specific protein pumps that bind to the molecule being transported, consuming ATP to change conformation and move the molecule across the membrane.
What would happen to a cell if materials could not move across the cell membrane?
If materials could not move across the cell membrane, the cell would not be able to take in essential nutrients or release waste products, leading to a lack of energy production and buildup of toxins. This would eventually lead to cell dysfunction and death.
Do large cells move across the cell membrane quickly?
A large cell will never move across an intact cell membrane.
What does diffusion do in a cell?
Move things across the cell membrane.
Which one moves faster across the cell membrane the large or the small?
Small particles move faster across the membrane.
Which type of molecule can move passively across the membrane?
Small and non-polar molecules, such as oxygen and carbon dioxide, can move passively across the membrane through simple diffusion. This process does not require energy and occurs in the direction of the concentration gradient, from an area of higher concentration to lower concentration.
What 2 materials move across the cell membrane?
waste and nutrients
What uses a protein to move a molecule across a membrane without energy?
Facilitated diffusion uses proteins to move a molecule across the cell membrane without energy.
If the inside and outside of a cell are both isotonic does water still move across the cell membrane?
no
How do large cells move across the cell membrane?
There cannot be large cells inside a cell.
What used a protein to move a molecule across a cell membrane without energy?
Facilitated diffusion uses proteins to move a molecule across the cell membrane without energy.
How does cell membrane structure work to move molecules across the membrane passively and actively?
Cheese toast
What requires no energy to move things across the cell membrane?
ginger kids
What type of hormone does NOT require a messenger to move it across the cell membrane?
adh
