Why do materials move across a membrane?

Answers

Answer 1

Answer:

they passively move from an area of high concentration to low concentration and also by active transport  

Explanation:

Answer 2

Answer:

Explanation:

Mass has a tendency to spread equally throughout available space. This is called diffusion


Related Questions

(02.07 LC)

A plant has to produce carbohydrates because

a) carbohydrates are needed to move ATP from cell to cell
b) carbohydrates are needed for building material
c) carbohydrates store the genetic material within the cells
d) carbohydrates store energy for a long time

Answers

i think the answer is A.

carbohydrates are needed to move ATP from cell to cell.

i am sorry if my answer was wrong .

A mutation in a polypeptide with the original amino acid sequence of: Met-Ala-Gln-Arg-Glu-Leu results in a mutant with the sequence: Met-Ala-Gln-Gly-Glu-Leu. Which describes the most likely type of mutation that has occurred?

Answers

Answer:

This question lacks options, however, it can be answered based on general understanding of the topic

The answer is SUBSTITUTION MUTATION

Explanation:

A mutation is any change that occurs in the nucleotide sequence of a gene. Mutation can be of different types depending on how it occurs. One type of mutation is SUBSTITUTION MUTATION, which is a mutation in which one or more nucleotide base is replaced by another in the sequence.

Nucleotide bases are read in a group of three called CODON. Each of these codons specify amino acid. Hence, if the nucleotide base sequence is altered during mutation, the amino acid sequence is altered likewise. In this case where the original amino acid sequence is: Met-Ala-Gln-Arg-Glu-Leu, the mutation affected the nucleotide bases coding for Arginine (Arg), hence changing it to Glycine (Gly).

This means that a base substitution mutation occured, replacing the amino acid Arginine with Glycine in the mutated sequence.

How do animals get nutrients?

Answers

Answer: by the consumption of other organisms. At the cellular level, the biological molecules necessary for animal function are amino acids, lipid molecules, nucleotides, and simple sugars. However, the food consumed consists of protein, fat, and complex carbohydrates

Explanation:im a expert in animals

compare and contrast glucose and starch

Answers

glucose is  a monosaccharide with a rather small mollecular mass

starch is a polysaccharide that is made of many units like glucose

starch can be transformed into glucose through a process called hydrolysis

Did the medical assistant have the syringe properly positioned

Answers

Answer:

the medical assistant could have positioned the syringe wrongly, as it could have been the one causing pain and irritation, and it was vital to confirmed..........

Experiment 2.) Pidge is able to clone each GLOW gene and express these proteins in yeast. She decides to test the function of the genes in the pathway based on their protein function in vitro. Pidge has generated a primary antibody to GLOW1. Pidge wants to demonstrate that the GLOW1 protein and physically interact with the GLOW2 and GLOW4 proteins. Question 9b.) What in vitro test can she perform? (3pts)

Answers

Answer:

Co-immunoprecipitation

Explanation:

Co-immunoprecipitation is a bio-technique use to analyze the physiological relevance of protein to protein interactions by binding the protein with special antibodies. With this vitro-test, a sample of a protein substance can be isolated and concentrated from thousands of other proteins.

The pointed or elongated stains that radiate out from the central area of a bloodstain
are called
O1) satellite spatters
O 2) spines
O3) strings
O4) sprays

Answers

Answer:

answerbis 2) spines

hopes this help u

Answer:

it would be called spines or blood tails.

Lysosones are organelles that contain enzyrnes. Which of the following is a function of lysosomes?
OA

OO

Lysosomes package lipids, carbohydrates, and proteins.
Lysosornes break down lipids, carbohydrates, and proteins.
Lysosomes store lipids, carbohydrates, and proteins
Back
Please answer quickly

Answers

Answer:

B break down lipids, carbohydrates, and proteins.

At this stage, the body is dry and mostly bones, cartilage, and dry Skin With oy
beetles present.
O1) Decay/Black Putrefaction
O2) Bloat/Putrefaction
O3) Post-Decay/Butyric Fermentation
O4) Dry/ Skeletal

Answers

Answer:

i m not sure but the answer may be dry /skeletol

Which organisms replicate cells by mitosis?

Answers

Answer:

All organisms, both prokaryotes and eukaryotes, can replicate cells by mitosis.

Explanation:

Mitosis is the process of cell division where, from a progenitor cell, two identical daughter cells are obtained. In the human being this process is carried out by somatic cells.

Cell division by mitosis is carried out by all living beings:

Prokaryotic organisms, unicellular, use it as a means to reproduce. Eukaryotic organisms, most of them pluricellular, use it in the processes of growth, development, repair and regeneration of tissues.

All living beings can perform mitosis as a process of cell replication, although with different objectives.

1 point
A man with type A blood marries a woman with type AB blood. Based on
what you know about blood types, what is the only blood type not possible
in any of their children? (remember, the 4 types are A, B, AB, and O)*
A
B
AB
0

Answers

They can't have a child with blood type O(I) because one of the parents has blood group AB(IV)

When does puberty occur? What causes the changes that occur during puberty?

Answers

Answer:

Explanation:

At the age of 10 or 11 and above because you are growing body developing

Answer:

Puberty can occur at many ages but usually around 10+

Explanation:

Assume it takes Venezuela 3 hours to produce a batch of apples and 7.5 hours to produce a batch of pumpkins, and it takes the United States 3 hours to produce a batch of apples and 8.5 hours to produce a batch of pumpkins. Which nation has an absolute advantage in producing pumpkins?

Answers

The nation with an absolute advantage in the production of pumpkins would be Venezuela.

In economics, absolute advantage refers to the ability of an entity to produce a good or service at a lower cost/time per unit given the same resources as another entity.

In other words, given the same quantity of input and time, an individual, a company, or a nation that produces greater output over the other has an absolute advantage at producing such an output.

Hence, if it takes Venezuela 7.5 hours to produce the same batch of pumpkins that the United States produces in 8.5 hours, then, Venezuela has an absolute advantage in producing pumpkins over the United States.

More on absolute advantage can be found here: https://brainly.com/question/13221821?referrer=searchResults

What of the following happens first?

Answers

Answer:

you should give options too

Answer:

it is c

Explanation:

because it is scientificly proven

Which of the following engulfs pathogens or an invading virus or bacteria
-t cell
-b cell
-macrophage
-red blood cell

Answers

Answer:

Macrophage

Explanation:

They do this through a process called phagocytosis

The following engulfs pathogens or an invading virus or bacteria - macrophage.

Macrophagea type of white blood cell of the immune systemengulfs and digests pathogens, an invading virus or bacteriait recognizes anything that does not have, on its surface, proteins that are specific to healthy body cells.surrounds and kills microorganisms, removes dead cells, and stimulates the action of other immune system cells.

Thus, The following engulfs pathogens or an invading virus or bacteria - macrophage.

Learn more:

https://brainly.com/question/1474358

Often in laboratory experiments you will want to amplify regions of the genome from several different preparations of gDNA. To do this, a mastermix will be created with all the common reagents to ensure easier pipetting, proper mixing, and controlling for variations in pipetting. Create a mastermix for running 8 identical reactions, including one negative control, each with different gDNA templates (7 total gDNA templates).

Answers

Answer:

Mastermix in PCR helps in providing faster and easier setup with pipetting, proper mixing, reduction in contamination and controlling fir variation in pipeting or tube to tube variability. Contents of PCR master mix for the desired reaction are as follows:

dNTPsPrimersthermostable DNA polymerasecofactor (MgCl2)Template DNA (for 7 samples)PCR-grade water

The only difference in negative control for the PCR master mix is template or the different primer rest the components are the same in the master mix.

Cellular Respiration takes place in these organisms.
Algae
Animals
Plants
All of the above

Answers

it takes place is all of them; all of the above

In the carbon cycle, what form of carbon do producers take in from the atmosphere to perform photosynthesis?
OA. carbohydrates
OB. CO2
O c. protein
OD.
solid carbon
O E.
water

Answers

Answer:CO2

Explanation:

What explanation provides support for continental drift theory

Answers

Answer:

All the continents seem to fit together like a puzzle.

Explanation:

Hope this helps!

Answer:

D

Explanation:

I think sorry if im wrong


Horses with genotype (BB) have a brown coat, horses with genotype (bb) have a white coat,
and horses with genotype (Bb) have a tan colat. Based on the information provided, the
alleles controlling coat color in horses show:

Answers

Answer: Incomplete dominance

What is the reason for the increased number of drug resistant bacteria being found in hospitals?

Answers

Answer: This rise is related to their natural resistance to most commonly used antibiotics and their capacity to acquire resistance to other antibiotics either by mutation (penicillins) or by transfer of resistance genes on plasmids and transposons (aminoglycosides and glycopeptides).

Explanation:

Which one is NOT a secondary consumer
A.
herbivore
B.
lion
C.
carnivore
D.
ominvore

Answers

Answer:

a. herbivore i think

Explanation:

ค้้้้้้้้้้้้้้้้้้้­้้้้้้้้้้้้้้้้้้้้­้้้้้้้้้้้้้้้้้้้้­้้้้้้้้้้้้้้้้้้้้­้้้้้้้้้้้้้้้ ฏ๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎­๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎­๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎­๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎­๎๎๎๎๎๎๎๎ํํํํํํํํํํํํ­ํํํํํํํํํํํํํํํํํํํํ­ํํํํํํํํํํํํํํํํ ค้้้้้้้้้้้้้้้้้้้­้้้้้้้้้้้้้้้้้้้้­้้้้้้้้้้้้้้้้้้้้­้้้้้้้้้้้้้้้้้้้้­้้้้้้้้้้้้้้้ ฏ๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎\ค้้้้้้้้้้้้้้้้้้้­้้้้้้้้้้้้้้้้้้้้­้้้้้้้้้้้้้้้้้้้้­้้้้้้้้้้้้้้้้้้้้­้้้้้้้้้้้้้้้ ฏ๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎๎

Answer:a

Explanation:

Please help me????!!

Answers

Answer:

push and pull

the answer is push and pull

Which of the following predictions is most likely consequence of the mutation?

Answers

Answer:

Explanation:

where are the following

17. Which organelle is not correctly matched with its function?
a. Cytoplasm-jellylike substance that supports the other organelles
b. Mitochondria- creates energy for the cell without the sun
c. Chloroplast- uses the sun's energy to create food
d. Cell wall- controls what comes in and out of the cell

Answers

The answer that is incorrect is most likely cell wall. cell membrane is what controls what comes in and out of a cell. A cell wall just supports the cell and keeps its shape.

Cells that are terminally differentiated:_________

a. will undergo apoptosis within a few days.
b. can no longer undergo cell division.
c. are unable to move.
d. no longer produce RNAs.

Answers

Answer:

b. can no longer undergo cell division.

Explanation:

Terminally differentiated cells are those cells completely specialized in their functions that have lost their ability to proliferate. They are cells that have a unique, very specific, function, whereas undifferentiated cells do not have specialized functions that serve to replace old and dead cells. Examples of terminally differentiated cells include skin cells derived from epithelial stem cells, red blood cells and white blood cells generated from hematopoietic stem cells, etc.

suggest two factors other than the rate of nitrogen fixation that may affect the avality of nitrogen in the marine ecosystem

Answers

Answer: run off from land/rivers and phytoplankton blooms

Explanation:

Nitrogen, particularly as nitrate is easily leached from soil. Human agriculture relies on fertilisers with significant nitrate content that applied at levels higher than it can be used. The balance end up as runoff, much of which ends up in

The two factors that are other than the rate of nitrogen fixation that fit the marine ecosystem are runoff from the land or rivers and the phytoplankton blooms

Waht is nitrogen fixation ?

Nitrogen fixation refers to the chemical process by which molecule N2 has a strong Tripple covalent bond and in the air, it gets coveted into NH3 or a related nitrogenous compound that is typically in soil or aquatic system.

The fixation is essential for life as inorganic nitrogen compounds are needed for the biosynthesis of nitgen-containing organic compounds like amino acids.

As nitrogen is easily found in soil and can be added by fertilizers it ends as runoff and damages the ecosystem.

Find more information about the marine ecosystem.

brainly.com/question/2305178

The Big Bang Theory explains that approximately 14 billion years ago an infinitesimally small, dense something rapidly expanded, creating all of the matter and energy in the Universe. Explain how the evidence of red shift (Doppler effect), distance between objects, cosmic microwave background radiation, and the relative abundance of elements in the Universe supports this scientific theory.

Answers

Answer: matter, but the physical laws that govern our ever-expanding cosmos. ... At this time, all matter was compacted into a very small ball with infinite density and ... This all began roughly 13.8 billion years ago.

Explanation:

I’m sorry but the Big Bang theory is not true..God is though.. he was here before time he is beyond time actually..Pray,repent, and read your bible✝️✝️ not trying to force my religion...and I m sorry but I don’t understand what the question is‼️

Cyanobacteria built ancient coral reefs known as

Answers

Answer:

stromatolite

Explanation:

if you want/need to know the details of the layering, it's on the internet (e.g. wikepedia) :)

Which of the steps below is NOT important for wellness?
A. focusing on quality of life
B.keeling all aspects of life at all times
C. creating balance
D.keeping all aspects of ife the same at all times
taking personal responsibility


PLSSSSS HURRY

Answers

Answer:

Possibly B? I'm not sure. Sorry if incorrect.

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