Membrane phospholipids are arranged in a bilayer with hydrophilic heads on the

Biology

1 answer:

Over [174]3 years ago

8 0

Answer:

A.) the phospholipid heads can interact with water inside and outside the cell

Explanation:

Phospholipid heads are hydrophilic - they are attracted to water. The tails are hydrophobic - they repel water. In the lipid bilayer arrangement - the heads interact with the water inside and outside of the cell, whereas the tails cluster together to avoid the water. These properties are what create the lipid bilayer arrangement which creates a selectively permeable membrane.

You might be interested in

Can water change the land quickly, slowly, or both? Explain.

Ivenika [448]

Answer: Yes, but slowly

Explanation: Flowing water causes sediment to move. Flowing water can erode both rocks and soil.

Materials can dissolve in water. With enough time, even rocks can be dissolved by water. This process happens really slowly. It may take over a million years to dissolve a rock. It doesn't matter how big the rock is. With enough time, flowing water can dissolve it. Moving water also has the ability to move small pieces of rock and soil. How can water move a rock? Doesn't it need energy? Of course, water gets its energy because it is moving. Moving water has kinetic energy. Things that have more energy can do more work. When water stops moving it will have no energy. It will no longer be able to move the rock and soil. When this happens the rock and soil will settle to the bottom of the calm water. Scientists call this process deposition. Faster-moving water has more kinetic energy. Therefore, it can carry larger particles. It can also carry more particles. What causes water to move faster? The steeper the slope, the faster the water flows. It's just like a toy car rolling down a ramp. It will roll the fastest when the ramp is steep. It will roll slower when the ramp is less steep. If the ramp is flat, it may have no motion. The slope of the land causes water to move faster. If a stream or a river is flowing down a mountain, it will move more quickly. If it is flowing across a flat area, it will move slowly. Some minerals dissolve in water. The minerals are then carried along in the solution. Small particles, such as clay and silt, are carried in suspension. They are mixed throughout the water. These particles are not dissolved in the water. Somewhat bigger particles bounce along the bottom. Particles, such as sand, move in little jumps near the stream bottom. They are nudged along by moving water. The biggest particles move in a different way. They are too big to hop. Instead, they roll along the bottom. Gravel and pebbles move in this way. These particles roll or drag along the bottom of the water.

5 0

3 years ago

Pressure _____ with increasing height above the earth. Decrease Increase

satela [25.4K]

Answer:

Decreases

Explanation:

There is less air above us as we go up.

8 0

3 years ago

I need help with prokaryotic and eurotokic cells. Please help to explain them to me.

Rus_ich [418]

Answer:

Prokaryotic has no nuculues in their cell, while eukariotic does

Explanation:

eukariotic cells have more than one chromosome, and are also bigger and found in more places.

5 0

3 years ago

Read 2 more answers

:-) :-) :-) :-) :-) :-) :-) :-) :-)

GenaCL600 [577]

Answer:

:-):-):-):-):-) How are you dping today???

3 0

3 years ago

Enzyme hot spring graphing what enzymes probably came from the digestive tract of the mondoni

AURORKA [14]

I found the full exercise on the internet and it describes that there are three enzymes and you want to know which are the two enzymes from the digestive tract of the mondoni and which one is the enzyme from a hot spring.
Attached are two graphs from the analysis of the activity of these enzymes regarding temperature and pH. I found these graphs with the full exercise.
The enzymes that probably came from the digestive tract of the mondoni were enzymes A and B. These enzymes were resistant two lower levels of pH which indicates that they could be present in a digestive tract, which tends to be acidic, while the enzyme C does not tolerate lower pH levels. Enzymes A and B were also more active when in lower temperatures that match temperatures of a normal living organism, whereas enzyme C was more active in higher temperatures matching its probable provenience - a hot spring.

6 0

3 years ago