Question
What is diffusion? Answer in a few words.
Answers
Answer
Which of the following are examples of ways your body maintains homeostasis? (Put a / if yes, or an x if no.)
____ You start to shiver when you're cold in order to warm up.
____ You start to sweat when you're hot to cool off.
____ You laugh when you think something is funny.
____ When there's too much sodium inside a cell, it starts to pump sodium out through the cell membrane.
____ The cell membrane is made of phospholipids.
____ When there's not enough sugar inside a cell, it opens channel proteins to let sugar in.
____ You start to shiver when you're cold in order to warm up.
____ You start to sweat when you're hot to cool off.
____ You laugh when you think something is funny.
____ When there's too much sodium inside a cell, it starts to pump sodium out through the cell membrane.
____ The cell membrane is made of phospholipids.
____ When there's not enough sugar inside a cell, it opens channel proteins to let sugar in.
Answer
5. True or false. Only selected molecules can diffuse through the semipermeable membrane ____.
6. Iodine is a small molecule and starch is a large molecule. Which one do you think will be able to diffuse through the cell membrane more easily. Why. Answer in a few words.
7. What is the function of a channel protein? (Function = what it does) Answer in a few words.
8. If there was not enough iron inside the cell, what is something the cell membrane might do to help maintain homeostasis? (Hint: Iron is a molecule that could fit through a channel protein.)
10. The cell membrane is surrounded by water. Which part of the cell membrane will want to face toward the water - the hydrophilic phosphate heads, or the hydrophobic lipid tails? Why? Answer in a few words.
6. Iodine is a small molecule and starch is a large molecule. Which one do you think will be able to diffuse through the cell membrane more easily. Why. Answer in a few words.
7. What is the function of a channel protein? (Function = what it does) Answer in a few words.
8. If there was not enough iron inside the cell, what is something the cell membrane might do to help maintain homeostasis? (Hint: Iron is a molecule that could fit through a channel protein.)
10. The cell membrane is surrounded by water. Which part of the cell membrane will want to face toward the water - the hydrophilic phosphate heads, or the hydrophobic lipid tails? Why? Answer in a few words.
Answer
What are the three names of the cell membrane?
Answered by
GPT-4o mini
Diffusion is the process by which particles spread from areas of high concentration to areas of low concentration.
Answered by
GPT-4o mini
Here are the responses:
/ You start to shiver when you're cold in order to warm up.
/ You start to sweat when you're hot to cool off.
x You laugh when you think something is funny.
/ When there's too much sodium inside a cell, it starts to pump sodium out through the cell membrane.
x The cell membrane is made of phospholipids.
/ When there's not enough sugar inside a cell, it opens channel proteins to let sugar in.
/ You start to shiver when you're cold in order to warm up.
/ You start to sweat when you're hot to cool off.
x You laugh when you think something is funny.
/ When there's too much sodium inside a cell, it starts to pump sodium out through the cell membrane.
x The cell membrane is made of phospholipids.
/ When there's not enough sugar inside a cell, it opens channel proteins to let sugar in.
Answered by
GPT-4o mini
5. True
6. Iodine will be able to diffuse through the cell membrane more easily because it is a small molecule.
7. The function of a channel protein is to facilitate the transport of specific molecules across the cell membrane.
8. The cell membrane might open channel proteins to allow more iron to enter the cell.
10. The hydrophilic phosphate heads will want to face toward the water because they are attracted to water (polar).
6. Iodine will be able to diffuse through the cell membrane more easily because it is a small molecule.
7. The function of a channel protein is to facilitate the transport of specific molecules across the cell membrane.
8. The cell membrane might open channel proteins to allow more iron to enter the cell.
10. The hydrophilic phosphate heads will want to face toward the water because they are attracted to water (polar).
Answered by
GPT-4o mini
The three names of the cell membrane are:
1. **Plasma Membrane**
2. **Cell Membrane**
3. **Cytoplasmic Membrane**
1. **Plasma Membrane**
2. **Cell Membrane**
3. **Cytoplasmic Membrane**
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