Answer:
B) This is an example of energy coupling
Explanation:
Energy coupling is a process by which cells carry out thermodynamically unfavorable, endergonic (energy-requiring) reactions to other exergonic (reactions that liberate free energy) reactions.
Reactions which are endergonic do not occur spontaneously as they result in a decrease in entropy and a positive free energy change, ∆G.
Exergonic reactions occur spontaneously as they result in an increase in entropy and have a negative free energy change, ∆G.
For example, the active transport of ions against their concentration gradients in cells is a non-spontaneous endergonic process which is coupled to the hydrolysis of ATP, an exergonic process in other for the reaction to proceed. ATP hydrolysis phosphorylates an amino acid side chain in the transport protein which then drives the forward process of transport of the ion.
Considering the above,
Option A: The hydrolysis of ATP is endergonic, and the active transport is exergonic is false because ATP hydrolysis is exergonic while active transport is endergonic.
Option B: This is an example of energy coupling is true.
Option C: Both ATP hydrolysis and active transport are spontaneous because they result in an increase in entropy of the system is false because only ATP hydrolysis is spontaneous
Option D: Neither ATP hydrolysis nor active transport is spontaneous is false because ATP hydrolysis is spontaneous.
Option E: ATP is acting as a transport protein to facilitate the movement of the ion across the plasma membrane is false because ATP is not a protein, rather it serves to activate the transport protein by phosphorylating it.
the analysis and comparison of DNA to better understand relationships between species
Answer:
comparative genomics
Explanation:
Comparative genomics is a field of biological research in which the genomic features of different organisms are compared. The genomic features may include the DNA sequence, genes, gene order, regulatory sequences, and other genomic structural landmarks.
Enzymes have specific _____ that determine their function. carbohydrates starches lipids shapes
Which correctly lists three agents that loosen and carry away rock during the erosion process?
animals,heat,sedimentheat
heat, wind, plants
plants, animals, wind
sediment, heat, plants
Answer:
Plants, animals, wind
Explanation:
I used the process of elimination. Heat and sediment cannot move dirt and/or rocks
Animal and plant movement is a factor in biological weathering. For instance, a plant may grow in a gap in a rock and, as its roots spread, cause the crack to widen. Even you have the potential to weather! Thus, option C is correct.
What loosen and carry away rock during erosion process?The dirt is kept in place by plants. Some animals scrape pebbles as they eat to weather them. Other creatures alter the surface of the Earth by digging into it and shifting stuff.
The majority of the vegetation can be destroyed by an excessive number of animals, which speeds up erosion.
Earthen materials are worn away during erosion, a geological process in which they are moved by wind or water.
Therefore, Earthen materials are worn away during erosion, a geological process in which they are moved by wind or water.
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consider this animal cell.
a) to temporarily store water, waste products, food, and other cellular material.
b) to produce proteins for the cell.
c) to move proteins and other substances through the cell.
d) to contain digestive enzymes that break down waste material and debris in the cell.
This organelle labeled is called the rough endoplasmic reticulum. It consists of channels that interconnect. On the outside, the rough endoplasmic reticulum contains ribosomes that play a role in protein synthesis
Exposing skeletal muscle fibers to ________ removes ions and ATP from the cells and disrupts the troponin-tropomyosin complex such that it can no longer block the active sites on the actin molecules.
Answer:
Glycerine/Glycerin
Explanation:
This is a colourless ,odourless syrup liquid which is sweet to taste .it is non toxic,it is also refers to as glycerol.Its medicinal uses includes anti bacteria and anti viral for wound treatments,and as a marker in liver diseases.
Chemically it contains three hydroxyl (OH) group bonded together.This structure is an adaptation for dissociation in water and also accounts for its hygroscopic nature.
When a muscle fibre is exposed to Glycerine,these cells contracts,reducing the space among the cells.Hence the fibres contraction is affected,follow by reduction in length.
Basically, during glycerine is applied to muscle cells,this substance punctures the sacolemma, creating holes.The latter aid the diffusion of ca+ and ATPs across this membrane in the muscle cells.
Generally the ca+ from the Sacroplasmic reticulum binds with the troponin,leading to the change in its shape to bind with the actin filament.Protein tropomyosin also binds with the actin filaments on different positions. Thus these proteins forms the troponin-tropomyosin complex on the filament.The proteins exposes part of the actin molecules, as the binding site for the myosin head cross bridges between the two filaments types.
Hydrolysis of ATP supplies energy for the withdrawal of the myosin head from the actin filaments and its tilts back to the filaments to ensure contraction and relaxation of muscles muscles fibres.
Now.if glycerine created holes in the sacrolemma,Ca+ ions will be reduced,ATPs molecules hydrolysis will be also be affected,therefore, troponin-tropomyosin complex can not be formed.Thus actin filaments would not be exposed,for myosin head to bind, (therefore the myosin binding site is blocked on the actin molecules)this eventually prevent muscles contractions without the nervous transmission.
Hair of the axilla can be considered what
Answer:
A. Determinate
B. Indeterminate
The answer is Determinate hair
Explanation:
Hair of the axilla which is also referred to as axillary hair is found under the arm.
A hair is referred to as being determinate if it is being replaced from time to time as a result of it getting old and wearing out.
The underarm hair is an example of the type of hair which undergoes the determinate type of growth process.
Indeterminate hair growth such as the one on the scalp continues to grow continuously and rarely wears out.
Which term describes an organism that has identical alleles for a trait?
Answer:
h;o;m'o;z'y'g'o'u;s; - two identical alleles
sorry, ignore the punctuation brainly wouldn't let me post the word together :/
Explanation:
Heterozygous would be two different alleles :)
A student recorded the height of each student in the school. She then made a bar graph of her results. She observed that
the results form a bell-shaped curve. The student could use her graph as evidence to support which argument?
Height is affected by multiple pairs of genes on different chromosomes.
The alleles for tall height and short height are codominant.
The allele for being tall is dominant to the allele for shorter heights.
There are three alleles for height that demonstrate incomplete dominance.
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Answer:
Height is affected by multiple pairs of genes on different chromosomes.
Explanation:
The results of the graph made by the student shown above, show that in relation to the height of people, there is a very large variation of phenotypes. This variation is due to environmental action in a variation of genotypes, which is very common in characteristics resulting from polygenic inheritance.
In this way, we can guarantee that according to the graph, height is affected by multiple pairs of genes on different chromosomes, which interact with each other, determining very variable characteristics.
Answer:
Height is affected by multiple pairs of genes on different chromosomes.
Explanation:
Just took the test on edg., got 100%
hope this helps! <3
During which eon did oxygen begin to build up the most in Earth’s atmosphere? a.)Phanerozoic b.)Proterozoic c.)Hadean d.)Archean
Answer:
b) Proterozoic eon
Proterozoic builds an oxygen layer in the earth's atmosphere.
What is a Proterozoic zone?The Archean Eon, the oldest of the two Precambrian periods, is older than the Proterozoic Eon. The Paleoproterozoic (2.5 billion to 1.6 billion years ago), and Mesoproterozoic (1.6 billion to 1 billion years ago).
All of the continents' recognized proterozoic rocks are significant sources of metallic ores, including iron, gold, copper, uranium, and nickel. The atmosphere and oceans underwent substantial alteration during the Proterozoic.
The fossilized remains of bacteria, blue-green algae, and the first oxygen-dependent organisms,the the Ediacarana fauna, may all be found in the Proterozoic rocks.
Therefore, Proterozoic builds an oxygen layer in the earth's atmosphere.
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Which activity is part of managing water resources
studying water to see whether it is polites
taking a long hot bath to say warm
drinking water and using it for swimming and boating
transporting water to areas where it is needed
Answer:
The correct answer is - transporting water to areas where it is needed
Explanation:
Water Resources Management (WRM) is the way toward developing, planning, and managing water assets, as far as both water amount and quality, over all water uses.
Water resources management is a significant issue from different retrospectives, for example, improvement of water bodies for future, assurance of accessible water bodies from contamination and over exploitation.
Water management can be done through storage in dams; redirecting water from overabundance zones to shortage zones through waterways linking; falsely recharging ground water; desalinating ocean water; towing chunks of ice from the Antarctic to water shortage locales; controlling contamination and recovering dirtied water through reusing; and cloud seeding.
Thus, the correct answer is - transporting water to areas where it is needed.
Which gland secretes chemicals that exert subtle effects on the sexual behavior and physiology of other people
Answer:
The Apocine glands.
Explanation:
These glands secrete sex pheromones This is the chemical substances which exhibits subtle effects on the sexual behavior and physiology of other people.
They are located at the axilla,anogenital region, at the areola and the nipple etc,The breast is a modified apocrine gland.It contains the mammary gland which secrets the best milk.Thus it is an example of apocrine gland.Basically,pheromones are has a significant reproductive effect on the opposite organism concerned.It aids mating,
Their hormonal secretions is released through the plasma membrane by budding off from the extracellular membrane,
Label the parts of the brain
Answer:
not sure if this is what you were looking for.
Explanation:
which two characteristics are used to classify stars on the hertzsprung-russell diagram?
a: size and density
b:density and composition
c: composition and temperature
d:
temperature and absolute brightness
Answer:
D.
Explanation:
Temperature is on the x-axis and Brightness is on the y-axis.
Answer:
It d
Explanation:
I just took the test
Into which layer of the Earth do plate boundaries extend?
-outer core
-lithosphere
-lower mantle
-asthenosphere
Answer:
The correct answer is B. Lithospehere. I took this on edge. Glad I could help!
Answer:
lithosphere
Explanation:
what is inflammatory bowel disease please answer wrong answer will be reported also friend meeee
Answer:
Hope this helps u
Explanation:
Inflammatory bowel disease is a problem when your chronic inflammatory problems begin. Prolonged inflammation results in damage to the GI tract.
Answer:
Inflammatory bowel disease is a problem when your chronic inflammatory problems begin. Prolonged inflammation results in damage to the GI tract.
Explanation:
what is 6.9 times 10 to the 7th power
Answer:
69000000
brainlest please and its acually not hard you just have to mutiply everything yk
Answer:
69000000
Explanation:
Since there are seven zeros in powers of ten notation it would be ten million
10000000 times 6.9 will give you 69000000
Which of the following statements is correct?
a) Insulin suppresses the activity of glycogen synthase
b) Insulin mediates glucose uptake in the brain
c) "Prediabetes" is a condition characterized by an increased risk for the future development of type 2 diabetes
d) The rise in insulin concentration after meal ingestion is reduced in type 1 but not in type 2 diabetes
Answer:
C) Prediabetes is a condition characterized by an increased risk for the future development of type 2 diabetes.
Explanation:
Prediabetes is a condition where there's a higher than normal blood sugar level but not high enough to be classified as type 2 diabetes. It is most likely to progress to type 2 diabetes if there are no lifestyle changes to mitigate the risk.
This progression can be stopped if the necessary lifestyle changes such as physical exercise, eating a healthy diet, weight control etc, are implemented.
Prediabetes doesn't usually present with any signs and symptoms though one possible sign is the darkening of the skin on the neck, armpit and elbows.
When signs like frequent urination, excessive thirst and fatigue are noticed, it is most likely the onset of type 2 diabetes.
homestyler in the regulation of an organism's internal environment to maintain conditions suitable for life
The question is incomplete as the nature of question is not clear, however the correct question is as follows:
homeostasis is the regulation of an organism's internal environment to maintain conditions suitable for life. homeostasis requires....
Answer:
The correct answer is - Homeostasis requires balances between many factors in the body such as the body temperature, chemical and physical balance, pH etc
Explanation:
Homeostasis is the ability of an organism to regulate or maintain its internal environment or conditions according the condition require for survival of organism or cell.
It is the characteristic feature of living organisms and life to adapt or maintain the equilibrium of cell's chemical, physical environment.
Thus, the correct answer is - Homeostasis requires balances between many factors in the body such as the body temperature, chemical and physical balance, pH etc
The mammary glands enlargement during pregnancy primarily as a consequence of what hormonal process?
a- hormonal anaplasia
b-compensatory hyperplasia
c-hormonal hyperplasia
d- hormonal dysplasia
e- none of the above.
Answer:
c-hormonal hyperplasia
Explanation:
When there is increase in the number of cells and tissues that appear normal under the microscope,Hyperplasia is said to occur.If these occur in cells of an endocrine gland of a system,then it is refers to as hormonal hyperplasia.
Therefore during pregnancy,the proliferation of the glandular epithelium in a pregnant woman (and at puberty in a females are examples of hormonal hyperlasia.
Its possible causes are;
a surge in local production s of growth factors,
In the numbers of growth factors receptors on the cells receptive to the factors,
and due to activation of specific intrancellular signalling pathways.
What happens to electrons when pigments in Photosystem II absorb light? They combine with oxygen and hydrogen to produce water. They are pumped across the membrane into the thylakoid. They move through an electron transport chain to Photosystem I. They become excited and break down the pigments to release ATP.
Answer:
The correct answer is They move through an electron transport chain to Photosystem I.
Explanation:
Luminous energy is trapped by a chlorophyll molecule in the Photosystem II. When the pigment molecules absorb light, electrons get in a higher energy level. These excited electrons go through the electron transport chain to an inferior energy level in the photosystem I. When the excited electrons leave photosystem II, they are replaced by new electrons that are extracted from the water molecules. As electrons go through the transport chain, their released energy is used to produce ATP molecules. Luminous energy absorbed in the photosystem I move the electrons to another electron acceptor from where they are transported again and used to produce NADPH molecules. When electrons are eliminated from Photosystem I, they are replaced by new electrons that are coming from the photosystem II through the transport chain.
When DNA is replicated, the two strands are first separated through _________; each strand then becomes a _________ against which two new strands are made.
Answer:
Answered below
Explanation:
Deoxyribonucleic acid, DNA, replication is the process whereby DNA makes a copy of itself and it occurs during cell division.
When DNA is replicated, the two strands are first separated through unzipping at the origin of the replication fork. This is catalysed by the enzyme helicase. Helicase breaks down the hydrogen bonds which hold the complementary base pairs of DNA together.
Each strand of DNA to then becomes a template against which two new strands are made. One of the strands is called the leading strand and the other is called the lagging strand. Both are oriented in opposite directions.
Question 2
The structure of DNA is described as a:
Answer:
Double-Stranded Helix
Explanation:
DNA is the molecule that holds the instructions for growth and development in every living thing. Its structure is described as a double-stranded helix held together by complementary base pairs.
Answer:
Double helix
Explanation:
Which of these viral cytopathic effects is most likely to be associated with the development of cancer?
Answer:
loss of contact inhibition
Explanation:
From the different options provided the one that is associated with the development of cancer is loss of contact inhibition. Contact Inhibition is a process of arresting cell growth when the cells come in contact with each other causing them to stop proliferating when they form a monolayer. Loss of contact inhibition would allow cells to continue replicating which leads to cancer.
Hi where is the Mumbai tribe from
The process by which a semipermeable membrane allows water molecules, small molecules and ions to pass through while retaining the larger molecules is known as:_______
a) Dilution
b) Hydration
c) Solvation
d) Dialysis
e) Titration"
Answer:
The answer is Dialysis.
Explanation:
Dialysis is the process by which a semipermeable membrane allows the water molecules, small molecules and ions to pass through while retaining the larger molecules. Thus, the correct option is D.
What is Dialysis?
Dialysis is the process of separating molecules in a solution by the difference in the rates of diffusion through a semipermeable membrane. Membranes such as dialysis tubing. Dialysis is a common technique which operates on the same principle as the medical dialysis.
One of the most common application of dialysis is the removal of unwanted small molecules such as salts, reducing agents, or dyes from the larger macromolecules such as proteins, nucleic acids like DNA, or polysaccharides. Dialysis is also commonly used for the purpose of buffer exchange and for the drug binding studies.
Therefore, the correct option is D.
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explain the flow of energy in an ecosystem determines how many of each type of organism the ecosystem can sustain
Answer:
In environment, energy flow , likewise called the calorific flow, alludes to the flow or the progression of energy through an food chain, and is the focal point of study in ecological energetics. In an environment, biologists look to evaluate the overall significance of various part of species and feeding connections.
in any biological system in light of the fact that these living beings carry energy to other tropic level. A food chain can typically support close to six energy transfers before all the energy is used up.
What response do you expect to happen as the body tries to restore homeostasis
Answer:
Cells swell as water moves into them. Cells swell as water moves out of them. Cells shrivel as water moves out of them.
hope this answer is correct
Identify internal and external factors that regulate cell division
Answer:
External factors can be cell to cell contact. Internal factors can be when the DNA is disrupted or a cell already has two of a part then will be divided.
Explanation:
Cell to cell can make a cell think it has already been divided while if DNA is disrupted it could cause nonstop growth, known as cancer.
Cells in contact with one another can be considered an external force. Internal factors can play a role in cell division, such as when the DNA of a cell is damaged or when it already contains two copies of a particular component.
What are factors regulating cell cycle?Signals that come from the outside can be either physical or chemical. Contact between individual cells is an illustration of a physical component. Once they come into contact with other cells, the vast majority of mammalian cells will cease their dividing. One example of a chemical signal would be growth factors, which are proteins that encourage cell proliferation and are also an example of chemical signals.
Internal factors such as kinases and cyclins are responsible for regulating cell division. Cyclin-dependent protein kinases are responsible for determining, once cells reach a checkpoint in the middle of the cell cycle, whether or not they will continue the process of cell division or call an end to it.
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____________activity reflects the extent to which an individual is alert,resting, sleeping, or dreaming.
Answer:
"EEG (electroencephalogram) " is the correct answer.
Explanation:
An EEG (electroencephalogram) seems to be a device that is being utilized to measure brain electrical performance. Parts of the mind have electrical stimulation that share information or interact with one another. This could be used to improve performance identify possible issues associated with this operation, monitor as well as combined total brain wave variations.So that the above would be the right answer
An abnormal increase in the forward curvature of the lower or lumbar spine is known as __ .
Answer:
The correct answer is - Lordosis
Explanation:
Lordosis is characterized as an excessive internal bend of the spine. It varies from the spine's ordinary bends at the cervical, thoracic, and lumbar regions, which are, to some extent, either lordotic (closer to the low back) or kyphotic (close to the neck).
Certain ailment procedures can antagonistically influence the structure of the spine and lead to lordosis.
Thus, the correct answer is - Lordosis