Answers
Answer:
1) Diffusion : Is the movement of molecules / ions from a region of higher to lower concentration. It may or may not occur across a semi permeable membrane.
In diffusion there is no challenge involved as it is along the concentration gradient, but in active transport movement of molecules occur against concentration gradient ie; from lower to higher concentration.
2) For active transport, energy is vital for movement, in this case protein molecules function as molecular pumps to enable the cell accumulate glucose/ions, against concentration gradient. Here metabolic energy ATP is required.
3)Facilitated diffusion is a type of passive transport in which ions/molecules cross the semi permeable membrane because permeases present in the membrane facilitate the transport.
Like simple diffusion facilitated diffusion doesn't require metabolic energy and simply occurs across the concentration gradient.
4) Osmosis : is movement of water from hypotonic solution (lower concentration) to hypertonic solution (higher concentration) through a semi permeable membrane.
The cell membrane being permeable to water allows to and fro movement of water molecules along the concentration gradient.
Related Questions
11. Write the complementary sequence to following DNA strand:
A A T T C G C C G GT ATT A G A C GTT
Answers
Answer: T T A A G C G G C CA TAA T C T G CTT
Explanation: The A's always pair with T's. The G's always pair with C's.
pure water has a pH of_
a. 6
b. 7
c. 8
d. 9
Answers
Answer:
It has a pH of 7, so your answer is therefore B.) 7.
Answer:
7
Explanation:
Why do you suppose plants and forests appeared in large numbers before large animals did? Several of the choices may be correct. Select the options you expect to be the strongest contributing factors.
Choose one or more:
A. Plants had to change less to survive on land.
B. Animals need food, and there was none on land before plants.
C. The increased oxygen levels produced by land plants accelerated animal evolution.
D. The order was pure chance and could have gone either way.
E. Animals are more susceptible to radiation and needed more ozone in order to survive out of the water.
F. It was too cold for animals at first.
G. There was not enough oxygen for lungs to be effective before plants colonized land.
H. Plants were driven to land by scarce resources in the oceans, such as light and minerals.
Answers
Answer:
It Might Be G im not to sure, sorry if im wrong
7. A hen's egg with the shell dissolved is placed in a 10% salt solution. Relative
to the interior of the egg the salt solution is
A. Hypotonic
B. Isotonic
C. Hypertonic
D. Semi-permeable
Answers
The salt solution is Hypertonic.
Hypertonic fluids contain a higher concentration of solute compared to plasma and interstitial fluid.What is hypertonic solution?A solution that contains more dissolved particles than is found in normal cells and blood.Cells placed in hypertonic solution will shrink. Water moves from a high water concentration inside the cell to a low water concentration outside of the cell by osmosis.What is osmosis?Osmosis is the movement of water molecules from a solution with a high concentration of water molecules to a solution with a lower concentration of water molecules, through a cell's partially permeable membrane.Osmosis is a passive transport process during which water moves from areas where solutes are less concentrated to areas where they are more concentrated.To know more about osmosis here
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Carbon, Hydrogen, and Chlorine atoms combine chemically. What best describes this
combination that is the result?
Atom
Compound
Element
Answers
Consideting the definition of compound, the correct answer is second option: Carbon, hydrogen and chlorine atoms combine chemically, forming compounds.
A compound is any substance formed by the union of two or more types of chemical elements, linked together by chemical bonds.
In other words, A chemical compound is the substance that results from the combination of two or more different chemical elements linked under a certain arrangement and in certain proportions.
Each compound has a chemical name (which responds to certain nomenclature rules) and a formula that indicates the elements it is composed of and the number of atoms each contains.
Then, the correct answer is second option: Carbon, hydrogen and chlorine atoms combine chemically, forming compounds.
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https://brainly.com/question/6242391?referrer=searchResultshttps://brainly.com/question/14782984?referrer=searchResultsYou are an engineer moving around your community and you find out that they are floods everywhere. What will you advise the community to do to improve the drainage?
Answers
Answer:
it depends on the severity of the flooding, if its extreme id say build canals
Explanation:
Why is knowledge and skills important in animal care and breeding? Explain in 3 to 5 sentences.
Answers
Answer:
to be thorough and pay attention to detail.
the ability to use your initiative.
to be flexible and open to change.
patience and the ability to remain calm in stressful situations.
the ability to work well with others.
the ability to accept criticism and work well under pressure.
To be successful as an animal breeder, you should have knowledge of the animal breeding process
a passion for animal breeding,
and knowledge of the potential risks of animal breeding.
Ultimately, a top-notch animal breeder should be an effective communicator, have good organizational skills, and be physically fit.
A living thing that is made of one or more cells uses energy, moves, responds to its environment, adjusts, reproduces, has a metabolism, and ingest nutrients is a (an)
Metabolism
growth
organism
respiration
Answers
Define the term peristalsis and explain why is it so important
Answers
Answer:
Peristalsis is a series of wave-like muscle contractions that move food through the digestive tract. ... There, the food is churned into a liquid mixture called chyme that moves into the small intestine where peristalsis continues. Stretching out a piece of intestine will make it easier to see the wave-like motion
Peristalsis is an automatic and important process. It moves:
Food through the digestive system
Urine from the kidneys into the bladder
Bile from the gallbladder into the duodenum
Peristalsis is a normal function of the body.
How is carbon dioxide cycled between a tree and a fox what processes are involved
Answers
Answer:
The fox exhales carbon dioxide and the tree takes in the carbon dioxide and converts it into oxygen.
Explanation:
What is the main difference between mitosis and cytokinesis?
Answers
Answer:
Mitosis refers to a cell centre division into two, whereas cytokinesis refers to the further breakdown of the cell cytoplasm that forms two girl cells.
Specific cell organelles and cytoplasms are cytokinesis, whereas mitosis is only inherited through heritage.
Organelle division is not essentially equal during cytokinesis.
Explanation:
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which statement best compare the roles of organelles in making proteins?
Answers
Answer:
Vesicles modify proteins, while the Golgi bodies manufacture proteins. Rough ER transport proteins, while the cell membrane modifies proteins. Chromosomes modify proteins, while the nuclear membrane produces proteins.
Explanation:
which molecules determine the tissue specificity of hormones?
Answers
Answer:
Steroids. Which molecules determine the tissue specificity of hormones? Receptors. Hormones bind to receptors on target cells and trigger a cellular response.
Explanation:
The tissue specificity of hormones is determined by hormone receptors. Proteins called hormone receptors are found on the cell surface. A hormone's binding to its receptor starts a chain of actions that eventually affects the activity of the cell.
For various hormones, different cells have various receptors. This implies that a hormone can only attach to cells that also contain such receptors. The tissue specificity of hormones is a result of this.
For instance, the insulin hormone attaches to receptors on cells in the muscle, fat, and liver tissues. These receptors bind to insulin, which sets off a series of processes that eventually result in the absorption of glucose from the circulation by these cells.
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5. What muscle is below the deltoid and is attached to the ulnar process? How many heads does this muscle have?
Answers
Answer:
What muscle is below the deltoid and is attached to the ulnar process? How many heads does this muscle have?
Explanation:
Triceps is the muscle that is responsible for the extension of elbow joint and also contribute to extension of shoulder joint. This muscle have three origin, that's why the name triceps. The triceps muscle has three heads which are:
A. The long head originates from the infraglenoid tubercle of scapula.
B. The lateral head originates from above the radial Grove in humerus.
C. The medial head originates form below the radial Grove in humerus.
These heads meet to form the body of triceps which gets inserted as triceps tendon in the olecranon process of ulna just behind the elbow. The contraction of this muscle causes the extension of the elbow joint.
Deltoid muscles are in your shoulder, which is the ball-and-socket joint that connects your arm to the trunk of your body. Deltoid muscles help you move your arms in different directions.
What is Deltoid muscle?The muscle known as the triceps is in charge of extending the elbow joint and helping to extend the shoulder joint. The name triceps refers to the fact that this muscle has three origins.
The scapula's infraglenoid tubercle is the source of the long head. In the humerus, the lateral head develops from above the radial Grove. In the humerus, the medial head develops from below the radial grove.
The triceps body is formed when these heads come together, and it is placed as the triceps tendon in the ulna's olecranon process, right beyond the elbow. The elbow joint extends as a result of this muscle contracting.
Therefore, Deltoid muscles are in your shoulder, which is the ball-and-socket joint that connects your arm to the trunk of your body. Deltoid muscles help you move your arms in different directions.
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which of the following is not an abiotic factor in the prairie ecosystem a water b sunlight c grass d soil
Answers
Answer:
Grass
Explanation:
Biotic means living. There are some obvious abiotic factors here. The only gray area is what "soil" encompasses
grass-Biotic means living, all of the other choices are not living, and would therefore be abiotic factors
This is because it is a living thing (performs photosynthesis and cellular respiration).
Biotic means living, all of the other choices are not living, and would therefore be abiotic factors
An atom that has twelve protons in its nucleus has an atomic number of:
24
13
12
none of the above
Answers
Answer:
Protons-12, Electrons-12, Neutrons-12
Answer
12 would be the correct answer
Microorganisms often lead to infection because they-
Answers
Hi!
Infection occurs when viruses, bacteria, or other microbes enter your body and begin to multiply. Disease, which typically happens in a small proportion of infected people, occurs when the cells in your body are damaged as a result of infection, and signs and symptoms of an illness appear.
Define Photosynthesis and include chemical equation
pls help I’m not sure how to phrase it!!
Answers
Answer:
Photosynthesis is the process whereas plants convert light energy into chemical energy, through cellular respiration. That can later fuel the organism's activity.
Equation: 6CO2 + 6H2O → C6H12O6 + 6O2
Explanation:
Answer:
Hey there,
Photosynthesis means,
The process of using carbon dioxide and water as raw materials to produce food with the help of light energy in the chlorophyll areas of the plant.
The chemical equation is attached to the picture.
Hope this helps you.
Let me know if you have any other questions :-)
Which of the following is monocotyledonous seed? / खालीलपैकी एकबीजपत्र असणारे बी कोणते ?
sunflower / सूर्यफूल
lentils / मसूर
beans / घेवडा
maize / मका
Answers
lentils is monocotyledonous
Maple seeds spread so that new maple trees can grow.
Which way will these seeds most likely spread?
Answers
Answer:
Maple seeds travel on the wind by using their wings. The uneaten seeds will germinate some distance from the parent plant.
Hope it helps.
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Maple seeds are considered to be wind-pollinated.
These are very light seeds so they can easily transport by wind.What is the feature of seeds to disperse through winds?Lightweight.Silky hair.Wings. Seeds of plants like cotton, poppy and drumstick are dispersed by wind. Wind dispersed seeds have special adaptations which make their dispersal easier. They are light in weight. Some have wings that help them fly long distances.What are the methods through which dispersal of seeds take place?There are five main modes of seed dispersal:
Gravity, Wind, Ballistic,Water, Animals.To know more about seeds dispersal here
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seeds from a single sexually reproducing plant are harvested and later planted under identical conditions. what results should be expected?
Answers
Please hurry this is over due!
If you are correct I will give you all the points I possibly can and brainiest!
Which of these is NOT true about the outer core?
A) It is mostly made up of iron and nickel.
B) It is mostly liquid.
C) It has a higher temperature than the inner core.
D) Atoms within it form a powerful magnetic field.
Answers
Answer:
C. It has a higher temperature than the inner core
Explanation:
The inner core is higher in temperature then the outer core.
Which of the following objects will float in water based on there density?
Hint: density of water is 1 g/cm3
Lithium 0.534 g/cm3
Coal 1.1 g/cm3
Magnesium 1.7 g/cm3
Uranium 18.7 g/cm3
Answers
Answer:lithium
Explanation:
The density of lithium is smaller than that of water.
If two solutions are isotonic to each other then?
Answers
Vhich molecules store information related to the function of a cell in the form of a coded message!
A
nucleic acids
B
lipids
C
enzymes
D
carbohydrates
Answers
Answer: The correct answer is A. nucleic acids.
Explanation: The genetic information is stored in the form of nucleic acids i.e. deoxyribonucleic acids (DNA) or ribonucleic acids (RNA).
Nucleic acids are large macromolecules in cells and viruses. Nucleic acids store and express genetic data. Therefore, option (A) is correct.
What are nucleic acids?The biopolymers and macromolecules known as nucleic acids are fundamental to every known type of living being. Nucleotides, which are the monomers that make up nucleotides, are composed of a 5-carbon sugar, a phosphate group, and a nitrogenous base. They are the building blocks that make up nucleotides. Deoxyribonucleic acid and ribonucleic acid are the two primary subgroups that can be found among nucleic acids.
Nucleic acids, including deoxyribonucleic acid (DNA) and ribonucleic acid (RNA), are responsible for carrying genetic information. This information is read in cells and used to produce RNA and proteins, which are necessary for the functioning of living things.
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The ________ plate method involves spreading an inoculum onto the surface of a plate in a pattern that results in isolated colonies in some areas of the plate after incubation, whereas the ________ plate method involves diluting an inoculum into several melted agar tubes and then adding their contents into plates for solidification and incubation.
Answers
Answer:
Streak, pour.
What is the Greek name for each of the spheres?
Answers
Answer:
stone (litho) or ground (geo)
air or vapor (atmo)
water (hydro)
life (bio).
Explanation:
Describe how bacteria are used to produce enzymes for washing powders.
Answers
Answer:
By using genetic engineering to insert the gene for the desired enzyme into the bacterial chromosome, then growing large amounts of the modified bacteria in fermenters.
Explanation:
Answer:
Bacteria such as fungi or algae are inserted in fermenter and feedstock such as glucose, amino acid, sucrose are inserted to be a source of food for them.
Then they are left for a time for the bacteria to reproduce more and to produce more enzymes in their cells, Then if the enzymes are extracellular they are extracted directly from the filtrate, if they are intercellular they are separated from the feedstock and crushed to be separated with any solvent such as water.
By using genetic engineering to insert the gene for the desired enzyme into the bacterial chromosome, then growing large amounts of the modified bacteria in fermenters.
Explanation:
Poultry products are a likely source of infection by:
Answers
Poultry products are a likely source of infection by Salmonella enterica
which causes typhoid.
Most farm animals such as pigs, cattle and poultry have been found to be
infected with Salmonella enterica as a result of their contact and exposure
to a dirty environment.
This is why it is advisable to apply much heat on poultry products such as
eggs to kill the micro-organism.
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the nucleus acid (blank) copies DNA so (blank) can be made
Answers
Answer:
RNA, Protein
Explanation:
The cell uses RNA as a messenger to carry the instructions to make proteins.
