in which part of cell are calcium ions usually found?

Answers

Answer 1

Answer:

The endoplasmic reticulum

Explanation:

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Related Questions

Which situation would increase the fluidity of a

phospholipid bilayer?

A. decreasing the temperature

B. increasing the number of proteins

C. increasing the number of cholesterol molecules

D. increasing the number of unsaturated fatty acids

Answers

Answer:

C

Explanation:

Cholesterol molecules stay in between fatty acid tails preventing them from sticking together

The situation that would increase the fluidity of the phospholipid bilayer is increasing the number of cholesterol molecules. The correct option is C.

What is a phospholipid bilayer?

A phospholipid bilayer is a layer around a cell. The cell membrane is composed of a bilayer of phospholipids. It contains fatty acids and alcohol.  

Bilayers of phospholipids are essential parts of cell membranes. The lipid bilayer serves as a physical barrier to the entry and exit of molecules and ions from the cell. However, allowing the selective transit of specific substances into and out of cells is a crucial role of the cell membrane.

Cholesterol is present between fatty acid molecules and prevents them from sticking to each other.

Therefore, the correct option is C.  increasing the number of cholesterol molecules.

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Categorize each carbohydrate listed as either a monosaccharide, disaccharide, or polysaccharide.
glucose

Answers

Answer: Glucose and Fructose are monosaccharides. Cellulose and starch are polysaccharides. And sucrose is a disaccharide.

How is molecular nitrogen (N2) utilized by plants and animals?
Before it can be utilized by plants and animals, molecular nitrogen (N2) must be converted by microbes that use N2 as a replacement for

Answers

Nitrogen is converted from atmospheric nitrogen (N2) into usable forms, such as NO2-, in a process known as fixation. ... The nitrogen is passed through the food chain by animals that consume the plants, and then released into the soil by decomposer bacteria when they die.

Answer:

Oxygen ✓

Explanation:

That's it and it's actually simple and correct

what is all of the dna in a set of 23 chromosomes referred to as?

Answers

Answer: The Genome

Explanation:

a change in DNA structure that might be beneficial, harmful, or neutral. What is all of the DNA in a set of 23 chromosomes referred to as? The genome

Why is the ability to perform photosynthesis an advantage to a Spotted Salamander

Answers

Answer:

the embryos release waste material, which the algae feed on. In turn the algae photosynthesis and release oxygen, which the embryos take in

Explanation:

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What is the relaxed form of dna in a cells nucleus?

Answers

Answer:

The relaxed form of DNA that can be found in the nucleus is referred to as chromatin. This form of DNA is observed when the cell is not dividing.

Explanation:

hope this helps

The relaxed form of DNA in a cell's nucleus is called chromatin.

CHROMATIN:Chromatin is a complex of DNA and histone proteins within the cell's nucleus. The DNA is too long to fit into the cell's nucleus, hence, is coiled around proteins called histones.

This complex forms the structure called chromatin, which then condenses during the prophase stage of cell division to form a more compact structure called chromosome.

Therefore, it can be said that the relaxed or uncondensed form of DNA in the nucleus of a cell is called chromatin.

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help please! (earth science/heat)

Answers

Answer:

4.

Explanation:

melting (changing from a solid to a liquid)

freezing (changing from a liquid to a solid)

evaporation (changing from a liquid to a gas)

and condensation (changing from a gas to a liquid).

Food Allergies ___________.
A. only impact Highly Susceptible Populations.
B. are very uncommon.
C. are serious and can be fatal.
D. are a cause of foodborne illness.

Answers

[tex] \: \: \: \: \: \: [/tex]

C. are serious and can be fatal.

hope it helps

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Answer: are serious and can be fatal

Which statement describes a similarity between a eukaryotic and a prokaryotic cell?
A
Both cell types contain DNA.
B
Both cell types contain a nucleus.
© Both cell types undergo cell division by mitosis.
D
Both cell types contain membrane-bound organelles.

Answers

Answer:

C.

Explanation:

Because for answer A, only eukaryotes have DNA, also for B, only eukaryotes have a nucleus and lastly, for D, only eukaryotes contain membrane-bound organelles. hope this helps :)

Both cell types undergo cell division by mitosis. Therefore, option (C) is correct.

What are eukaryotic and prokaryotic cells?

A nucleus and other membrane-bound organelles are exclusively found in eukaryotic cells, which is the main distinction between prokaryotic and eukaryotic cells. Prokaryotes and eukaryotes, respectively, are made up of prokaryotic and eukaryotic cells. Eukaryotes often have several cells, but prokaryotes are invariably unicellular. Eukaryotic cells are also between 100 to 10,000 times bigger and more complicated than prokaryotic cells.

Prokaryotic DNA is kept in the cytoplasm, while DNA in eukaryotes is kept in the nucleus. Additionally, double-stranded chromosomes that are compressed by histones are where eukaryotic cells store their DNA. Prokaryotic organisms, on the other hand, only contain one basic circular chromosome and a variety of plasmids, which are tiny DNA rings. In comparison to prokaryotic cells, the DNA of eukaryotic cells contains a higher percentage of non-coding DNA and proportionately less coding DNA.

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How do El Niño and La Niña differ?

Answers

Answer:

El Niño refers to the above-average sea-surface temperatures that periodically develop across the east-central equatorial Pacific. It represents the warm phase of the ENSO cycle. La Niña refers to the periodic cooling of sea-surface temperatures across the east-central equatorial Pacific.

Explanation:

List three limitations for measuring cell size​

Answers

Answer:

Cell size is limited by the cell's surface- area- to - volume ratio

what plant organelle does photosynthesis take place in?

Answers

Answer:

photosynthesis takes place in chloroplasts, which contain the chlorophyll. Chloroplasts are surrounded by a double membrane and contain a third inner membrane, called the thylakoid membrane, that forms long folds within the organelle.

Explanation:

Have a great day!

what we ever seen a super volcano erupts

Yes I do know if a super volcano erupts it would change the world like that one sun but have we ever seen one like in the past?

Answers

Answer:

no we havent

Explanation:

The last one was 26,500 or 74,000 years ago.

What are Mendel's two laws?​

Answers

Answer:

1) the law of segregation

2) the law of independent assortment

Explanation:

How does your body respond to a decrease in blood glucose

Answers

Answer:

When blood sugar drops too low, the level of insulin declines and other cells in the pancreas release glucagon, which causes the liver to turn stored glycogen back into glucose and release it into the blood. This brings blood sugar levels back up to normal.

Explanation:

hope this helps!

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Answer:

Glucose is a sugar that comes from the foods we eat, and it's also formed and stored inside the body. It's the main source of energy for the cells of our body, and is carried to each cell through the bloodstream. Our brains depend on glucose to function, even when we're sleeping.

The blood glucose level is the amount of glucose in the blood. When these levels (also called blood sugar levels) drop too low, it's called hypoglycemia (pronounced: high-poe-gly-SEE-me-uh). Very low blood sugar levels can cause serious symptoms that need to be treated right away.

Low Blood Sugar Levels in Diabetes

People with diabetes can have low blood sugar levels because of the medicines they have to take to manage their diabetes. They may need a hormone called insulin or diabetes pills (or both) to help their bodies use the sugar in their blood.

These medicines help take the sugar out of the blood and get it into the body's cells, which makes the blood sugar level go down. But sometimes it's a tricky balancing act and blood sugar levels can get too low.

People with diabetes need to keep their blood sugars from getting too high or too low. Keeping blood sugar levels in a healthy range means balancing when and what they eat, and when they exercise with when they take medicines.

Hope this helps...;-]

Explanation:

Which definition best explains the term gene expression?

Answers

Answer:

Answer:

Gene expression is the process by which the information encoded in a gene is used to direct the assembly of a protein molecule. ... Each group of three bases (codon) corresponds to one of 20 different amino acids used to build the protein.

OR

Gene expression is. the activation of a gene leading to the transcription, translation and synthesis of a specific protein.

I NEED HELP PLS THISS IS HARD

Answers

Answer:

I think it's 2 number not sure but definitely not the first one for sure

What is most responsible for the presence of groundwater in an area?

Answers

Answer:

precipitation

Explanation:

For people who need to study this

Answers

Answer

ok

Explanation:

Answer: okay thank you sir!

Have a great Day/Night

what is the relationship between monosaccharides and disaccharides

Answers

A disaccharide is the sugar formed when two monosaccharides are joined by glycosidic linkage. Like monosaccharides, disaccharides are simple sugars soluble in water. Three common examples are sucrose, lactose, and maltose.

Which is a point mutation and not a frameshift mutation?
mutagen
insertion
deletion
silent

Answers

Answer:

The correct answer is D. Silent

I can assure this is the correct answer because I took either the test or review, I don't remember but yeah I know its correct also, because of the other person so be sure to say thanks to them before me!

Hope I helped! <3

A silent mutation is a point mutation and not a frameshift mutation. Therefore, the correct statement is option D.

What are point mutations?

Mutagens are agents causing mutations in DNA sequence. Point mutations are due to a change in a single nucleotide base in a DNA sequence and frameshift mutations are due to changes that are the result of the insertion or deletion of nucleotide bases, thereby, shifting the reading frame of the sequence and the way is changed in which it is translated into a protein.

A silent mutation is a point mutation that does not change the amino acid sequence of a protein, as the mutated codon still codes for the same amino acid, thereby, not affecting the function of the protein.

Insertion and deletion mutations are frameshift mutations as they alter the reading frame of the sequence which results in a completely different amino acid sequence.

Therefore, the silent mutation is a point mutation.

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PLEASE HELP!!!! MULTIPLE CHOICE

Answers

Answer:

c

Explanation:

Which shows the order in which vertebrates evolved?

Answers

Answer:

Class

Explanation:

Vertebrate Classification. Vertebrates can be subdivided into five major groups: fishes, amphibians, reptiles, birds, and mammals. Amphibians, reptiles, birds, and mammals are ranked as classes.

WILL GIVE BRAINLIEST IF CORRECT! I NEED HELP

Answers

Unconformities is number 4
principles of originally horizontally is number 3
law of superstition is number 2
principles of cross-cutting relationships is number 1

What is the metabolic process that breaks down organic molecules to release energy to be used by cells?
A. cellular respiration
B. light dependent cycle
C. light independent cycle
D. photosynthesis​

Answers

Cellular respiration

Cellular respiration in living tissues is reduced at low temperatures. The amount of kinetic energy needed for chemical reactions like cellular respiration to occur decreases as temperature rises.  Thus, option A is correct.

What importance of cellular respiration in an organism?

As oxygen tension dropped, so did breathing rate, which eventually reached nil at low oxygen tensions.

Cell density had no bearing on this outcome. We provide a model to explain the observed impact of oxygen tension on cellular oxygen uptake.

As a result, increased cellular respiration is often associated with warmer temperatures.

Carbon dioxide concentration: The rate of respiration is inversely correlated with carbon dioxide concentration.

Increased carbon dioxide levels and a lack of oxygen have a negative impact on aerobic respiration rate.

Therefore, cellular respiration  is the metabolic process that breaks down organic molecules to release energy to be used by cells.

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The separation of the colors occurs because each different ____ of light ______, or bends a different amount

A frequency, wavelength
B wavelength, reflects
C wavelength, refracts

Answers

Answer: C

Explanation: Makes the most sense bc refraction is the bending of light

A commercial on television advertises a new medicine to boost immunity. Which source is least likely to provide accurate information?
a popular culture magazine
the studies that the television ad cites
a brochure from the doctor’s office
the Food and Drug Administration’s website

Answers

Answer:

a popular culture magazine

Explanation:

magazines can be filled with unreliable and false gossip and it's not all accurate.

Answer:

A. a popular culture magazine

Explanation:

got it right on edge :)

which is the only kind of bird that has no eyeballs?

Answers

Owls dont have eyeballs

3. Describe each one of the following types of fractures:
simple fracture
compound fracture
incomplete fracture
impact fracture
comminuted fracture​

Answers

Simple: The bone fracture does not break the skin
Compound: when the bone punctures the skin
Incomplete: the bone does not break completely
Impact: The bone fracture impacts another bone
Comminuted: The bone breaks into 3 or more pieces

a condition in which the number of red cells or the amount of hemoglobin is below normal

Answers

Answer:

The condition is anemia.

Explanation:

Anemia is a medical condition in which the red blood cell count or the hemoglobin is less than normal.

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jackie is saving money for a coat that costs $121 if she already has $61 and saves $15 each week in how many weeks can she buy the coat make a function table In a short paragraph of 75 to 100 words, describe each of the characters in "The Water of Life." How many different five-letterarrangements can be made from theletters in the word "PLUTO"?52560120 Question 7 of 10Which of the following graphs shows a positive linear relationship with acorrelation coefficient, r, close to 1?A.B.c.D.*A. Graph AB. Graph BC. GraphO D. Graph D What is the sum of 130+125+191? A. 335. B. 456. C. 446. D. 426. If we minus 712 from 1500, how much do we get? A. 788. B. 778. C. 768. D. 758.50 times of 8 is equal to: A. 80. B. 400. C. 800. D. 4000. 110 divided by 10 is: A. 11. B. 10. C. 5. D. None of these. FRIEND ME!!! HELP ME OUT PLEASE!!! According to the passage, which of these is true about seaplanes? A) They can carry large shipments of cargo. B) They are more practical than other planes. C) They can land in places other planes cannot. D) They are still used regularly by the military. Which process is involved in growing crops? irrigation transportation recreation condensation. Select the correct answer.A building has a triangular rooftop terrace which is modeled by triangle A BC. In triangle A BC, the measure of XA is 55. the measure ofXB is 65, and the measure of C is 60.Which side of the terrace has the greatest length? Some of the students in Johns study group are doing an excellent job. But some students do not show up on time and do not complete their part of the assigned tasks. What can John do to help the group identify who and what is working out well and what isnt? a. Hold a joint meeting and aggressively confront those who are not holding up their end of the assignments c. Ask a teacher, who has never seen the group work together, come in and make suggestions on how to deal with irresponsible students. B. Create assessments which rate how well each student is doing d. Any of these Please select the best answer from the choices provided A B C D. Identify the section which MOST CLEARLY supports the generalization that the printing press was the most important invention of all time.A)section oneB)section twoC)section fourD)section six At Charlie's Hats, 12% of the 75 hats are baseball caps. How many baseball caps are there? Malachi is practicing math fluency. He has 100 math operation flashcards with 42 addition problem cards, 56 subtraction cards, and 2 multiplication cards. He will time himself to see how fast he can solve the problems on two cards. He chooses his two cards and they are both multiplication cards. Is choosing two multiplication cards likely? Explain by running a simulation.Part A: State the problem or question and assumptions. (2 points)Part B: Describe the process for one repetition, including possible outcomes, assigned representations, and measured variables. (3 points)Part C: Use digits from a table of random digits or use your calculator to perform one repetition. Submit the list of random digits and indicate those that represent multiplication cards. (3 points)Part D: Suppose there were 5 times when both cards selected were multiplication cards after 1,500 repetitions of the simulation. State your conclusions from these results. (2 points)Essay Submission A farmer has 220 bushels of apples to sell at roadside stand. She sells an average of 14 3/5 each day. Represent the total change in the number of bushels has for sale after 6 days.The total change in the number of bushels has for sale is ???, please answer as a fraction A 20 metric ton train moves toward the south at 50 m/s. At what speed must it travel to have four times its original momentum Jason estimates that his car loses 12% of its value every year. The initial value is $12,000. Which best describes the graph of the function that represents the value of the car after x years? f(x) = 12,000(0. 12)x, with a horizontal asymptote of y = 0 f(x) = 12,000(1. 12)x, with a vertical asymptote of x = 0 f(x) = 12,000(0. 88)x, with a horizontal asymptote of y = 0 f(x) = (12,000 0. 88)x, with a vertical asymptote of x = 0. Congress can pass laws concerning ___. (Select all that apply.) why were the Beavers sent to a Faraway part of Idaho What is 2 rounded to the nearest whole number? Anthony sold 45 tickets to the school play and Katy sold 40 tickets. What is the ratio of the number of tickets Anthony sold to the number of tickets Katy sold? A 9:8 B 40:45 C 5 to 8 D 8 to 9 Liam bought 5 7/8 pounds of steak. He used 2 1/16 pounds of steak for a cookout.