In order for a muscle cell to contract, sodium ions (Na+) must be removed from
the cell and potassium ions (K+) must enter the cell. Both of these lons travel
against the cell's concentration gradient. This process is most likely achieved
througn-
A.Simole diffusion across the cell membrane using no energy
b. A channel protein using no eneray
C. A protein pump using energy
d. A channel protein using energy

Help asab

Answers

Answer 1
the answer to this question is B

Related Questions

What traditional christmas decoration is actually a parasitic plant?

Answers

Answer:

Mistletoes

Explanation:

How do we know that the ocean is continually absorbing carbon from the atmosphere, helping with climate stability?
O Increased carbon in the oceans have made them more acidic.
O Ocean pH has increased significantly in the last decade.
O There are bubbles like carbonation on the ocean surface.
O Fish we catch and eat from the ocean are made of carbon.

Answers

The concentration of carbon is increased in the oceans have made them more acidic.

Increased carbon concentration in the oceans which have made the ocean water more acidic is the indication that more carbon is absorbed by the ocean. When carbon absorbed by the ocean, the carbon reacts with water which produced carbonic acid.

This carbonic acid decrease the pH of the ocean water that adversely affect the marine organisms especially coral reefs. When the pH of the ocean water increases, bleaching of coral reef occurs because the algae living on them die so we can conclude that the concentration of carbon is increased in the oceans have made them more acidic.

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Answer:

A

Explanation:

Increased carbon in the oceans has made them more acidic.

What is the 11 year solar cycle?

Answers

The Sun's magnetic field goes through a cycle, called the solar cycle. Every 11 years or so, the Sun's magnetic field completely flips. This means that the Sun's north and south poles switch places. Then it takes about another 11 years for the Sun's north and south poles to flip back again.

hope this helps!

how are rat mice gerbils hamsters guinea pigs and chinchillas similar?​

Answers

They are all rodents. This means they probably belong to the same order which is rodentia.

What did Rosalind Franklin contribute to the understanding of DNA molecules?

A
An image indicating the shape of a DNA molecule

B
An analysis of the chemical makeup of a DNA molecule

C
A thought that DNA carries genetic information

D
A theory about how DNA conveys genetic information

Answers

A . An image indicating the shape of a DNA molecule.

What are the inner planets in order?

Answers

Answer:Mercury, Venus, Earth, and Mars

Explanation:

24. What energy transformation occurs
during the combustion of coal in a
power plant?
A Electromagnetic energy is
transformed to thermal energy.
B Nuclear energy is transformed to
electromagnetic energy.
C Chemical energy is transformed to
thermal energy
D Chemical energy is transformed to
noclear energy

Answers

Answer:

c

Explanation:

it's not really a chemical per se but c is close enuff

explain how oxygen is cycled between the tree and the fox shown in the picture. name the specific processes involved.

Answers

Answer:

Cellular respiration and photosynthesis.

Explanation:

Carbon dioxide is put out by the fox and the tree absorbs it. The tree puts out oxygen and the fox inhales it.

Examples of RNA viruses are Cvid19 or the virus that causes

Answers

Answer:

I think bacteria but im not sure

Explanation:

--------

DNA and RNA are ______ that serve as templates that form proteins

Answers

Answer:

In the first step, the information in DNA is

transferred to a messenger RNA (mRNA)

molecule by way of a process called

transcription.... The mRNA sequence is

thus used as a template to assemble-in

order-the chain of amino acids that form a

protein.

A type of RNA that is called as ribonucleic acid type called as transfer RNA that is used for the production of the amino acid at a time and the protein assembly takes place at the ribosomes.

What is the role of DNA and RNA for the sake of protein synthesis ?

       

DNA are responsible for the providing out the code for the cell's activities and the RNA are responsible for providing out the service to make them proteins.

Each group of 3 bases in the  mRNA constitutes a codon and each codon is specifying  a particular type  of  amino acid. The mRNA sequence therefore used as a template to make the  assembly in order of the chain of amino acids which form a protein.

It is found that in all biological cells , usually occurs in cytoplasm of cell though its production takes place in nucleus. Whereas DNA is  providing the code for cell's activities and RNA is responsible for converting that code into proteins which carry various cellular functions.

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a common fruit fly has eight chromosomes in a normal body cell. after a cell undergoes mitosis, how many chromosomes will each new cell have?

Answers

Answer:

Each daughter cell will have 8 chromosomes. That is correct. By the end of mitosis, there are two daughter cells. Each daughter cell will have the same amount of genetic material as the parent  8 chromosomes.

Explanation:

Hope this helps helps

Which of the following cooking methods is tailor-made for preparing a rib eye steak?
-frying
-marinating
-grilling
-roasting

Answers

Grilling is an excellent cooking method for preparing a rib-eye steak. Grilling can eliminate any type of bacterial contamination.

Grilling is a cooking method used to eliminate any type of harmful microorganism (e.g., bacteria).

This method (grilling) involves dry heat which is applied to the surface of the food as radiant energy.

Grilling cooking is a safe mode to eliminate bacterial contamination in meat (barbecue) and vegetables.

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If the DNA sequence is ATC-CGA, what is the complementary mRNA nucleotide sequence?
A
TAU-UAT
B
UAG-GCU
C
TAG-GCT
D
GCG-CGT

ASAPP

Answers

It would be letter b

Please help me with this it’s so hard

Answers

Answer:

1: Frond's

2:Pistil

3:Gametes and spore's

4: photosynthesis

5: Spore

6:Stigma or ovule

7:Ovary

Hope this helps!

7. What are the characteristics of living things (list 5)?​

Answers

MRS GREN
Movement
Reproduction
Sensitivity
Growth
Respiration
Excretion
Nutrition

what would do the most to reduce indoor air pollution in the developing world?

Answers

Answer:What would do the most to reduce indoor air pollution in the developing world? Using solar energy to cook and heat homes. Millions of people in the developing

Explanation:

your welcome

What do I do when this happen???

Answers

you have to click retry
and talk to your teacher if it doesn’t work.

What types of information can scientists learn from fossils?

Answers

how long life has existed on earth, an idea of an organisms size and how it has changed or evolved, and how some species may have gone extinct

Answer:

Types of information scientists learn from fossils is what it was like back then before we existed, these fossils also tells us our history and we might learn from the history and prevent any disaster that killed that animal or plant from happening to us

Explanation:

Hope this helps!

civil society is a voluntary and self mobilized social group.how​

Answers

Answer:

xtp7rx

Explanation:

xrpuorzuxulxiufzlzud'udlpxiflzuduld' ilfcgxotcgochpchpvph hpckcgogcupcblckxph jv jx,"'lv lh glad

100 POINTS PLEASE HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

Liar Its only 50 points

Explanation:

Answer:

I agree!! :))

Explanation:

how we can increase the fertile land? ​

Answers

Answer:

Add Compost. Compost is decomposed organic matter, and it is the best thing you use to improve the health of garden soil.

Get a Soil Test.

Mulch the Soil Surface.

Prevent Soil Compaction.

Rotate Crops Each Year.

Grow Cover Crops.

Add Aged Animal Manure.

Explanation: Soil fertility is the ability of soil to sustain plant growth and optimize crop yield. This can be enhanced through organic and inorganic fertilizers to the soil. Nuclear techniques provide data that enhances soil fertility and crop production while minimizing the environmental impact.

competition between species can be a limiting factor in an ecosystem
True
False

Answers

Answer:

True

Explanation:

because it can be a limiting factor in an ecosystem

How do mangroves and coral reefs show mutual relationship?

Answers

Answer:

The answers below⤵

Explanation:

Mangroves serve as a shoreline protection.

When situated near coral reefs, mangroves affect the reef communities in many interesting ways. Mangroves are trees that can grow in environments with poor oxygen content. ... Mangroves serve as shoreline protection, and, when situated near reefs, as nurseries for many species of reef fish.


Picture:

Help asap !!!! Which of these statements is true of the brightest stars? (1 point)
O They are yellow stars.
O Many are supergiants
O Several are white dwarfs.
O Each is part of the main sequence.

Answers

Answer:

Many are supergiants.

Explanation:

A star's size and core temperature determine its brightness. The brightest stars tend to be blue or blue white. Supergiants and red giants are in the region above the main sequence of stars, so that isn't true. Red are the dimmest. Yellow stars are in the middle of that spectrum. White Dwarfs are dimmer than the Sun, red giants and blue supergiants.

What is the name given to the process by which a parent cell becomes two identical daughter cells?(1 point)

A. meiosis
B. differentiation
C. senescence
D. mitosis

Answers

Answer:

D. mitosis

Explanation:

Mitosis is the process whereby the parent cell divides into two daughter cells that are identical.

Mitosis is the process by which a parent cell becomes two identical daughter cells. So, the correct option is (D)

What is mitosis ?

Mitosis is the process in which cell duplication, or reproduction takes place. Wherein one parent cell gives rise to two genetically identical daughter cells. Mitosis is the duplication and distribution of chromosomes which carries the genetic information.

It is an important process in single celled eukaryotes as it is the mode of asexual reproduction. The main function of Mitosis is to produce more cells.

Life starts with single cell in multicellular organism which is formed from two gametes. Mitosis takes place one cell is divided into two cells as this single celled multicellular organism only carries genetic information in the form of DNA but not enough cells. These two cells further divide mitotically into four cells, then into 8 , then 16 and then 32.

It is essential to life because it give rise to new cells for growth and replacement of dead cells. It may take few minutes or some hours, depending on the type of cells. It depends on time, temperature and chemicals.

Thus, mitosis is the process by which a parent cell becomes two identical daughter cells. So, the correct option is (D).

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The leakiest capillaries, which allow large substances and cells to cross the capillary wall, are called ________________.

Answers

Answer:

sinusoidal capillaries

Explanation:

What type of cells do humans have prokaryotic or eukaryotic?

Answers

Answer:

Eukaryotic cells

Explanation:

Because a Eukaryotic cell has a nucleus and membrane-bound organelles, and Prokaryotic cells DO NOT.

Construct a Venn diagram that compares and contrasts sexual and asexual reproduction.

Include the following phrases:

haploid (n)
diploid (2n)
gamete
somatic
mitosis
meiosis
cell division
chromosomes separate
genetically identical
genetically different

Answers

The Venn diagram makes a comparison between categories. Intersection: Cell division/Asexual: diploid, somatic, mitosis, genetically identica/Sexual: haploid, gamete, meiosis, chromosomes separate , genetically different.

------------

   

A Venn Diagram is represented as two or more circles with some degree of superposition between them. It is used to make comparisons expressing similitudes and differences between things.

Each circle represents a category -in this example, sexual and asexual reproduction-.

The superposed area is named intersection and shows things in common between the two categories.

We already know that sexual reproduction occurs by the process of meiosis, while asexual reproduction occurs by mitosis.

In superior organisms, there are two types of cells: Somatic cells and germ cells.

The somatic cells are diploid (2n), meaning that each cell has a pair of equal chromosomes. The somatic cells are all the body cells except for the sexual ones, and they reproduce by the process of mitosis.

In somatic cells, one of the sets of chromosomes is inherited from the maternal side, while the other homologous set of chromosomes is inherited from the paternal side. Hence, the number of chromosomes in these double sets of the somatic cells is diploid, 2n.

Mitosis is a process through which, from a diploid somatic cell (2n), two identical daughter diploid cells (2n) are produced.

First, occurs duplication of the cell content, and then the separation into two new cells happens.

Germ cells suffer mitosis and meiosis.  

Through meiosis, germ cells produce gametes, called sperm and egg cells, through the gametogenesis process.  

Gametes are haploid (n) with half the number of chromosomes that might be found in the somatic cells.  

During gamete formation, the pairs of homologous chromosomes separate after crossing over. Then, sister chromatids also separate. The result is the formation of four gametes.  

Each gamete has different information from the combination of homologous chromosomes belonging to the father and to the mother.

Gametes' destiny is to merge in the process of fecundation, during which a new diploid cell called zygote emerges through fertilization.

The zygote is a complete cell that suffers successive mitosis to form the new organism.  

Venn Diagram

Intersection area: Cell divisionAsexual: diploid, somatic, mitosis, genetically identicalSexual: haploid, gamete, meiosis, chromosomes separate , genetically different.

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a signal molecule which can bind to an enzyme and shut down its activity by altering the shape of the enzyme.

Answers

Answer:

Enzyme inhibitor

Explanation:

An enzyme inhibitor is a molecule that binds to an enzyme and decreases its activity. By binding to enzymes' active sites, inhibitors reduce the compatibility of substrate and enzyme and this leads to the inhibition of Enzyme-Substrate complexes' formation, preventing the catalysis of reactions and decreasing the amount of product produced by a reaction.

During fertilization, each haploid ____________ contains the entire genetic contribution from one of the two parents.

Answers

During fertilization each haploid gamete
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