Answer:
cholesterol plays a distinct role in determining membrane fluidity.
Cholesterol has a specific impact on how fluid a membrane is. With their polar hydroxyl groups adjacent to the hydrophilic head groups of the phospholipids, cholesterol molecules enter the bilayer.
How does cholesterol regulate cell membrane fluidity?The phospholipid bilayer's random distribution of cholesterol molecules aids the bilayer's ability to remain fluid under a variety of environmental conditions.
Cells control membrane fluidity by modifying the lipid composition of the membrane. A lipid bilayer's fluidity fluctuates according to temperature. Lipid bilayers become more fluid, porous, or leaky at increasing temperatures (like butter melting on a hot day).
Cholesterol makes the cell membrane less fluid at higher temperatures and more fluid at lower temperatures.
Therefore, cholesterol is the chemical in the plasma membrane that has an impact on the fluidity of the membrane.
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Describe the significance of enzymes in our digestive system having different optimal pH and optimal temperatures. (Hint: What does this allow our bodies to do?)
Answer:
Digestive enzymes play a key role in breaking down the food you eat. These proteins speed up chemical reactions that turn nutrients into substances that your digestive tract can absorb. Your saliva has digestive enzymes in it. Some of your organs, including your pancreas, gallbladder, and liver, also release them.
For most enzymes to operate in the body, the optimal temperature is 37 degree Celsius or 98 degrees Fahrenheit. Most of the human enzymes have a maximal activity at pH around 7.2, which is the pH of most body fluids. However, there are exceptions such as, pepsin.
5. Water can break apart rock because when water freezes it
Answer: The water goes into cracks in the rock, and when it freezes it solidifies allowing the ices to spilt the rock.
This is called frost wedging
Explanation:
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There are 2 types of crust - Continental and Oceanic.
True
False
Answer:
true
Explanation:
cuz it's true also trust me I've done my research.
Answer: True
Explanation: Earth's crust is generally divided into older, thicker continental crust and younger, denser oceanic crust. The dynamic geology of Earth's crust is informed by plate tectonics.
Just need an answer
The right answer
AN AMERICAN HEART ASSOCIATION STUDY FINDS THAT E-CIGARETTES MAY NOT BE ANY BETTER THAN CIGARETTES FOR CARDIOVASCULAR HEALTH.
A.Yes B.No
Answer:
B. no
Explanation:
The was found to be no significant
affect on heart disease
In a living organism, what is a tissue
how to pass and study science
organisms that gain energy by consuming preexisting organic molecules are called:
Answer:
heterotrophs
Explanation:
PLEASE HELP! asap !
What evidence do we have that the lithospheric plates that makeup Earth's
surface have moved?
i need 3 pieces of evidenced possible please!
Evidence from fossils, glaciers, and complementary coastlines
Organelles are specialized structures that perform various functions in the cell. What are the
functions of the organelles in an animal cells?
Answer:
The function of organelles is to provide a specific function for the cell.
Explanation:
Eukaryotes have organelles not prokaryotes. All the cellular processes of prokaryotes occur in one cell. The advantage of having seperate spaces to do various functions is for regulation and maintance.
1. Bacteria reproduce rapidly through binary fisson
2. A parent bacterial cell is able to survive in the presence of the antibiotic penicillin. Subsequent
generations from this parent will be _vulnerable to penicillin
3. Something that potatoes and bacteria have in common is that they both reproduce through
asexual reproduction
4. In asexual reproduction, DNA from the parent cell
before it produces daughter
cells.
Bacteria are single-celled prokaryotic microscopic organisms that replicate via binary fission.
Bacteria:
They are single-celled prokaryotic microscopic organisms.
They reproduce through binary fission.Binary fission is an asexual mode of reproduction.Some bacteria have the ability to grow even in the presence of antibiotics.In asexual reproduction DNA of the parent cell, replicates before division.Therefore, bacteria are single-celled prokaryotic microscopic organisms that replicate via binary fission.
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i need help with this
Answer:
Explanation:
hubb
Which of the following equations best represents conservation of matter?
Option 1: 6H₂O + 10CO₂ -> C₆H₁₂O₆ + 4O₂
Option 2: 3H₂O + 3CO₂ -> C₆H₁₂O₆ + 6O₂
Option 3: 6H₂O + 6CO₂ -> C₃H₆O₃ + 3O₂
Option 4: 6H₂O + 6CO₂ -> C₆H₁₂O₆ + 6O₂
Answer:
4
Explanation:
How does pH affect plant growth?
Answer:
Soil pH directly affects the life and growth of plants because it affects the availability of all plant nutrients. Between pH 6.0 and 6.5, most plant nutrients are in their most available state. A nutrient must be soluble and remain soluble long enough to successfully travel through the soil solution into the roots.
Somebody help me please
Answer:
c
Explanation:
Drag the tiles to the correct boxes to complete the pairs
Potential energy is involved in each of these events. Match each event with its source of potential energy
a trampoline expands and contracts from
the weight of children
a chemical substance reacts with water to
give off heat
a skydiver jumps from a plane and free-falls
toward the ground
eravitational potential energy
elastic potential energy
chemical potential energy
Answer:
Refer to image
the reticular layer of the dermis consists primarily of
Answer:
The reticular layer of the dermis (RD) consists of dense irregular connective tissue, which differs from the papillary layer (PD), which is made up of mainly loose connective tissue (note the difference in the number of cells).
Explanation:
Hope this helps...
what type of acid breaks down food in your stomach?
Answer:
stomach acid or gastric acid
Explanation:
the merger between _____ resulted in the first production-distribution-exhibition firm with a truly national theater chain.
The merger between Famous Players-Lasky and Balaban & Kat resulted in the first production-distribution-exhibition firm with a truly national theater chain.
Famous Players-Lasky in collaboration (merged) with Balaban & Katz that was a chicago-based theater chain who had a lot of large auditoriums in the Midwest. The merger brought about the first production distribution-exhibition firm with a truly national theater chain. It was later named Publix Theaters. Paramount-Publix became the firm's name.Conclusively, we can say that the merger between Famous Players-Lasky and Balaban & Kat resulted in the first production-distribution-exhibition firm with a truly national theater chain.
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6) Write an equation with an infinite amount of solutions.
Answer:
any equation in the form of
ax+by+c=0
where a, b, c are constant numbers and x, y are variables
also why asking in biology
the monomer of lipids are ______ _______ and ________ the monomers of carbohydrates are _______
word bank:
fatty, acids, monosaccharides, glycerol
Answer:
1) Glycerol and Fatty, Acids - Lipids
2) monosaccharides - Carbohydrate
where in eukaryotic cells does the calvin cycle take place?
Answer:
chloroplasts
The two parts of photosynthesis—the light-dependent reactions and the Calvin cycle—have been described, as they take place in chloroplasts.
Explanation:
what is the name of the process that happens in the mitochondria?
Answer:
Oxidative phosphorylation
Explanation:
Pls also put this in a graph
How do we receive gold? (ex. do we mine? etc.)
Answer:
Ocean drifting
Explanation:
Most gold found today is sifted through sand on the shore of beaches.
PLEASE HELP I NEED ANSWER RIGHT NOW ASAP. 100 POINTS TO WHOEVER ANSWERS FIRST AND ALSO BRAINLEST!!!!!!!!!!!!! :)
Look at the following graph, which shows the average number of offspring had by mice per year with certain traits. Based on the data, which traits are advantageous to the species?
Explanation:
The traits more sensitive noses is advantageous to the species
American apple cells contain an enzyme that turns the tissues brown when an apple is peeled and left for a time. Boiled apple does not go brown. Explain why the boiled apple behaves differently.
Answer:
I think I got it from recipetips.com
When cooking apples it is not as much of a concern because once they are cooked, the browning will stop. When fresh apples are peeled or cut open, the apple's cells are exposed and react with the oxygen in the air. The reaction that occurs, which is called oxidation, is what turns the apple brown.
Explanation:
Enzymes are proteins. As such they are very specific. When the apple is boiled, the enzyme becomes denatured and as such doesn't turn the apple brown.
in eukaryotes, ribosomes become associated with endoplasmic reticulum membranes when:
Explanation:
When a ribosome begins to synthesize proteins that are needed in some organelles, the ribosome making this protein can become "membrane-bound". In eukaryotic cells this happens in a region of the endoplasmic reticulum (ER)
the answer pls?
bio
Answer:
sorry i don't know the answer btw do you have an ig
Who influenced Darwin to come up with the idea of Natural Selection (also sometimes called “Survival of the Fittest”)?
Answer:Jean Baptiste Lamarck was a botanist and zoologist who was one of the first to propose that humans evolved from a lower species through adaptations over time. His work inspired Darwin's ideas of natural selection.
Explanation:
I took the test