Answer:
a. Valinomycin carries Kt into the mitochondrial matrix, reducing the electrical component of the electrochemical gradient across the inner mitochondrial membrane.
Explanation:
Oxidative phosphorylation is a process by which cells generate ATP (the energy coin of the cells) by coupling an electrochemical potential gradient across the inner mitochondrial membrane created by the electron transport chain to phosphorylation of ADP. Moreover, an ionophore is a molecule that reversibly binds ions. Ionophores are often involved in the movement of ions across the cell membrane. Valinomycin is an ionophore that mediates the transport of potassium (K+) ions down a concentration gradient, which is capable of disrupting the gradient across the membrane by modifying the K+ gradient. Valinomycin binds to K+ ions and enables them to pass more rapidly across the mitochondrial inner membrane, thereby neutralizing the excess of negative charge inside the mitochondrial matrix and thus slowing ATP synthesis.
WhiWhich of the following statements about traits is true?
A. All organisms within a population will have the sametraits.
B.A trait that is helpful in one environment will benefit organisms in all environments.
C. Organisms with helpful traits are more likely to survive and pass those traits on to their offspring.
D. An organism cannot have traits that would help it survive in environmental conditions that are different from the conditions of its habitat.
Answer:
C
Explanation:
Survival of the fittest
Answer:
I believe the correct answer is
C. Organisms with helpful traits are more likely to survive and pass those traits on to their offspring.
Define protein synthesis
Answer:Protein synthesis is the process in which cells make proteins
Explanation:
Protein synthesis is the process in which cells make proteins. It occurs in two stages: transcription and translation. Transcription is the transfer of genetic instructions in DNA to mRNA in the nucleus. It includes three steps: initiation, elongation, and termination
why animals need to move quickly
Answer:
Animals move for a variety of reasons, such as to find food, a mate, a suitable microhabitat, or to escape predators. For many animals, the ability to move is essential for survival and, as a result, natural selection has shaped the locomotion methods and mechanisms used by moving organisms.
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What makes a fossil an index fossil
A.The fossil does not contain trance of DNA
B. The fossil Connor be dated using radioactive dating
C. The fossil comes from an Anaimal that did not evolve
D the fossil was formed only during certain shot time period
Answer:
A
Explanation:
How does the body structure evolve for animals as they transmit between the two environments?
Answer:
Biologists believe that new species evolve from existing species by a process called natural selection. ... Organisms that inherit that favorable new gene are likely to become more abundant than others of the species. Sometimes the population of a species becomes separated into two areas, by geography or by climate.
Explanation:
The simple sugar in DNA is
O glucose
Deoxyribose
o
ribose
0
starch
Answer:
deoxyribose
Explanation:
answer above
A certain plant species has an adaptation that makes it contain a bad-tasting chemical. Which is the MOST LIKELY result of this adaptation? The plant is able to live in many different environments. Animals are more likely to eat the plant. The chemical aids in photosynthesis. • Animals are less likely to eat the plant.
Answer:
Animals are less likely to eat the plant
Explanation:
It tastes bad so they wont want to eat it again
Animals are less likely to eat the plant and It tastes bad so they wont want to eat it again.
What are Adaptation?The process by which organisms adapt to their environment in order to increase their chances of surviving in that environment is known as evolutionary adaptation, or simply adaptation.
The biological process through which organisms adapt to brand-new surroundings or alterations in their current environments is known as adaptation.
Wallace and Darwin both went beyond basic adaptation when formulating the notion of evolution by natural selection by describing how organisms adapt and evolve.
Therefore, Animals are less likely to eat the plant and It tastes bad so they wont want to eat it again.
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Part C Firefly luciferase is the enzyme that allows fireflies to illuminate their abdomens. Because this light generation is an ATP-requiring reaction, firefly luciferase can be used to test for the presence of ATP. In this way, luciferase can test for the presence of life. The coupled reactions are 1.2.luciferin+O2ATP⇌⇌oxyluciferin+lightAMP+PPiΔG∘=−31.6 kJ/mol If the overall ΔG∘ of the coupled reaction is -4.80 kJ/mol , what is the equilibrium constant, K, of the first reaction at 6 ∘C ?
Answer:
K = 9.620 × 10⁻⁶
Explanation:
From the given information:
Temperature T= 6° C
= (273 + 6)K
= 279 K
The correct and well presentation of the reactions are:
1. [tex]Luciferin + O_2[/tex] ⇆ oxyluciferin + light ΔG₁°
2. ATP ⇄ AMP + PP[tex]_i[/tex] ΔG₂° = -31.6 kJ/mol
The overall ΔG° = -4.80 kJ/mol
Let's first determine the ΔG₁° for the equation (1)
ΔG° = ΔG₁° + ΔG₂°
- ΔG₁° = - ΔG° + ΔG₂°
ΔG₁° = ΔG° - ΔG₂°
ΔG₁° = ( -4.80 - (-31.6) ) kJ/mol
ΔG₁° = 26.8 kJ/mol
Using the formula:
ΔG° = -RTIn K
[tex]In \ K =\dfrac{-\Delta G^0}{RT} \\ \\ log \ K = -\dfrac{\Delta G^0}{2.303RT}[/tex]
[tex]log \ K = -\dfrac{\Delta G_1^0}{2.303RT} \\ \\ log \ K = -\dfrac{26.8 \times 10^3 \ J/mol}{2.303\times 8.314 \ J/mol/K \times 279 \ K} \\ \\ log \ K =- 5.017[/tex]
K = antilog (-5.017)
K = 9.620 × 10⁻⁶
Sounds lower than what the human ear can sense are ultrasound True or false?
Answer:
True
Explanation:
we cannot hear ultrasound waves
Is there an unconformity? ___________
2. 5 is a _____________________ ______________.
Answer:
what is short sightedness?
A population of 24000 has couples that have 2 babies. What is the number of babies?
Answer:12000 babies
Explanation: 24000/2 = 12000
This paramecium has a nucleus and is comprised of one cell. Which terms best describe this organism?
Answer: The term that best describes this organism is that it's a UNICELLULAR PROTISTA.
Explanation:
Unicellular organisms are that are made up of just one cell. They are also called single- celled organisms. Examples of unicellular organisms include: Amoeba, chlamydomonas and paramecium.
The paramecium is a protist which is SINGLE-CELLED and is made up of eucaryotic cells in which the cell structure is complex with a well-defined NUCLEUS.
The structure of this organism helps it to survive in its environment. It has cilia that helps it move food into its gullet.
The food vacuole circulate along a definite path in the cytoplasm. The anterior and posterior contractile vacuole, with radiating channels draining into them, helps to get rid of excess water from the body. The food vacuoles circulate along a definite path in the cytoplasm. The anterior and posterior contractile vacuole, with radiating channels draining into them, helps to get rid of excess water from the body.
The NUCLEUS is used by the organism for sexual reproduction. This occurs in a process known as conjugation whereby the whole organism pair with another similar whole organism and exchange their nuclei.
Help i need all 3 done
Answer and Explanation:
1. Transform
2. Convergent
3. Divergent
Sorry, it took me a while to add this but my mum wanted me for something..
In a study published in the journal Nature, scientists studied eight ponds in Florida: four that were populated by a species of fish and four that were not. As they studied the ponds, they noted that the areas around the four fish-populated ponds showed decreased populations of dragonflies and dragonfly larvae, whereas the four without fish showed abnormally large populations of dragonflies and larvae. Dragonflies feed on bees, butterflies, and other pollinators.
Required:
Predict what would happen to the rate of pollination of flowers in a field next to a pond with no tish.
Answer: the rate of pollination of flower, in a field next to a pond with no fish, will DECREASE.
Explanation:
POLLINATION is defined as the process by which flowering plants, through the aid of external agents such as insects,wind, water and other animals, are able to transfer pollen grains from an anther to a receptive stigma. Insects are the most common pollinators. They visit flowers to obtain nectar and pollen as source of food. Flowers use various features, such as colour and scent, to attract and guide insects to the food source within them. In the process of reaching their source of food, insects bring about pollination.
From the study conducted by scientist in Florida, eight(8) ponds where subjected to the the study. The first four (4) ponds had species of fishes that fed on dragonflies and dragonfly larvae, hence the reason for a decrease in the population of the dragon flies in the area around it. While the remaining four (4) ponds had NO fish and the area around it is populated with dragonflies and dragonfly larvae. This is so because of the absence of fish.
It was then noted that the dragon lies fed of the insect pollinators such as the bees and butterflies. Since these dragonflies and its larvae are abundant in the field which is close to the pond with no fish, they will grossly depend on the insect pollinators as their source of food thereby decreasing the rate of pollination in the field next to the pond with no fish.
Which of the following nutrients is organic?
iron
water
sodium
protein
Answer:
Protein is the answer
Explanation:
Proteins are considered organic molecules because they are made up of carbon atoms with hydrogen, oxygen and nitrogen attached
Renewable Energy is the best solution to Coal, Petroleum, Nat Gas, and Nuclear
True or false
Explanation:
coal , petroleum,Net Gas , Nuclear are the non renewable source of energy .
so
False is the answer of your question
why most plants cannot survive in deserts?
Answer:
maybe beacuse there not enough water and its too hot the sun will dry them up
Explanation:
Answer:
Because the ground is not fertile.
and there is too much of sunlight.
Suppose the stereocilia of one hair cell become permanently bent toward the kinocilium. What will most likely happen as a consequence
Answer:The options are not given, here are the options from another website.
a. A single pitch will be constantly perceived
B. A single pitch will no longer be perceivable
c. A or B depending on the hair cell's location
d. A or B depending on the bending's direction.
The correct option is d.
A or B depending on the bending's direction
Explanation:
This is because stereocilia are normal bent where there is a shearing force that occur when there is a up and down movements of the basilar membrane . When stereocilia bend towards the kinocilium, it make it depolarizes the cell and lead to the afferent activity to rise up and when the stereocilia bend away from the kinocilium , it hyperpolarizes the cell and lead to a reduction in afferent activity.
The consequences of this are that a single pitch will be noticed, or no pitch will be noticed. This will depend on the direction the stereocilia have bent.
We can come to this answer because:
Stereocilia are cellular accessories that help cells move around.They can curve up or down, generating different but very important effects.If the curvature is made towards the kinocilium, we can notice the formation of a pitch, as the cell becomes polarized.If the curvature is in the opposite direction to the kinocilium, the cell will be depolarized and it will not be possible to visualize the pitch.In this case, we can state that the consequences of the curvature of the stereocilia will depend on the side towards which this curvature is directed.
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If the frequency of the p allele is 63 in the population then what is the frequency of the q allele?
040
0 55
0 37
O 137
Which Texas ecoregion described below was formed due to weathering and erosion? A Edwards Plateau - home to rare organism that live in canyons B. Piney Woods - high density of vegetation, pines, oaks, and croplands with nutrient rich soil CC Crosstimbers - high concentration of trees, plains and parries with soil that drains water easily D Post Oak Savannah - transitional area of plant life ranging from grasslands to forests with fertile soll can yi
Answer:
d
Explanation:
because
state the role of light photosynthesis
Answer:
the role of light photosynthesis is to absorb the sunlight so the the photosynthesis can happen if there is no light, or sunlight them photosynthesis cannot happen, light I intensity is a very important role to photosynthesis
Explanation:
hope that helped
the word root that means lung is
Answer:
I think is Pulmonarycorrect me if I'm wrong
The theory of Copernicus contained six hypotheses:
The sun is at the _______ of the planets.
The Earth is ______ of the planets.
All the planets _______around the sun.
Each planet revolves around the sun in its own______ and at different _______
.
The moon______ around the Earth.
The stars are ______part of the solar system.
Answer:
The theory of Copernicus contained six hypotheses:
The sun is at the center of the planets.
The Earth is one of the planets.
All the planets orbit around the sun.
Each planet revolves around the sun in its own orbit and at different distances.
The moon orbits around the Earth.
The stars are not part of the solar system.
Explanation:
hope this helps :)
A phase when the cell focuses solely
on growing:
Answer: A cell spends most of its time in what is called interphase, and during this time it grows, replicates its chromosomes, and prepares for cell division. The cell then leaves interphase, undergoes mitosis, and completes its division.
Which characteristic could help you distinguish between types of fungi
Answer: The correct answer would be the spores made by the fungi.
The major phyla of the fungi are usually classified on the basis of characteristics of sexual structures.
For instance, the chytridiomycota produce zoospores, the blastocladiomycota undergo sporic meiosis, the ascomycota forms ascospores et cetera.
Fungi are mainly classified into seven phyla:
Microsporidia
Chytridiomycota
Blastocladiomycota
Neocallimastigomycota
Glomeromycota
Ascomycota
Basidiomycota
Hope I helped.
2. When an object gets warmer it is:
a. loosing energy
b. keeping the same energy
c. gaining energy
Choose one correct answer.''
what has the most biodiversity: tundra, taiga, temperature forest, tropical rain forest, grassland, or desert?
4
Select the correct answer.
Why does temperature decrease with higher altitude?
A.
Air is held strongly together by gravity, so there is less heat transfer.
B.
Air density is lower, so there is less heat transfer.
C.
Air density is higher, so there is less heat transfer.
D.
Air pressure is higher, so there is less heat transfer.
Answer:
air density is lower, so there is less heat transfer
Explanation:
Radiation is absorbed by the ground of Earth and this heats the surroundings along with tropospheric air through conduction and convection process. ... Thus, we can conclude that temperature decrease with higher altitude as air density is lower, so there is less heat transfer.
Answer:
The correct answer would be B.
Air density is lower, so there is less heat transfer.
I got this right on a test. I hope this helps!
The digestive system contains a variety of parts that perform specific functions within the body. The small and large
intestines have some similarities and some differences. Which function is only performed in the small intestine?
O water absorption
O vitamin absorption
O mineral absorption
O production of chyme
Answer:
d
Explanation:
Answer: d
Explanation:
What process releases
the phosphate minerals?
Answer: weathering
Explanation: