From the nernst potential given, the mg2+ ion is at a higher concentration outside the cell.
What is nernst potential?
The potential across the cell membrane that exactly opposes net diffusion of a particular ion through the membrane.
The nernst potential of an ion is calculated as follows;
[tex]E = \frac{RT}{zF} ln[\frac{ion \ outside \ cell}{ion \ inside \ cell} ][/tex]
The given nernst potential of mg2+ ion is +30 mv = +0.03 V, (positive volt).
A positive log can only be obtained when the numerator (ion outside cell) is greater than the denominator (ion inside cell).
Thus, from the information given, the mg2+ ion is at a higher concentration outside the cell.
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Life system: cyanobacteria begin photosynthesis and produce oxygen. Earth system: free oxygen reacts with rocks (axidation), resulting in increased rates of weathering for soil
production. Life system: land plants evolve and take root in terrestrial soil.
O Life system: cyanobacteria begin photosynthesis and produce oxygen. Earth system: free oxygen reacts with all available dissolved iron in the ocean. Life system: mass extinction
event of anaerobic organisms occurs from buildup of oxygen in the ocean.
• Earth system: oxygen moves from the ocean to the atmosphere through gas exchange. Earth system: free oxygen reacts with incoming solar radiation to form ozone. Earth system:
ozone collects in the stratosphere to form the protective ozone layer.
O Earth system: molten Earth forms into layers based on density and pull of gravity. Earth system: Earth cooled, and the water vapor in the atmosphere condensed and created the
oceans. Life system: cyanobacteria evolved.
The cyanobacteria were already there without the oxygen, so that rules out A, and a lot of prokaryotes were anaerobic, so that rules out Finally, Photosynthesis does not require oxygen. Instead, Oxygen is a waste product of it.
What is photosynthesis?Photosynthesis is a process that occurs in the chloroplast organelle of plant cells. The typical light reaction of photosynthesis takes place inside the thylakoid membrane of the chloroplast. The chief reactants such as water and carbon dioxide participate in the reaction. The water gets oxidized in the reaction to release oxygen as a product. The carbon dioxide gets reduced.
Thus, Photosynthesis is a process that occurs in the chloroplast organelle of plant cells
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HELP ME FAST PLSS
The sun's energy is transferred through a vacuum of space to earth. What kind of heat transfer is this?
conduction
radiation
convection
electromagnetic radiation
1. What are the similarities between all cells?
Answer:
Similarities between all cells.
*All cells contains a cell membrane.*All cells have a vacoule.*All cells contains cytoplasm.Hope it helps.what are two ways plants compete against each other
Answer:
One thing I know from school is that plants can end up taking all of the water from other plants if you don’t spread them out enough. They also can end up growing over another plant which can eventually if not fixed strangle the other plant and that ends up killing it.
Explanation:
these are my own examples I’m learning about this isn’t science or I was earlier this year which is why I know this.
Answer:
Two different ways that plant compete against eachother is...
1. Competing for food, light, water etc.
2. If you grow two plants next to eachother they will take over eachother's sunlight and start to shade eachother.
Explanation:
I learned this just a few months ago in my biology class.
how does diffusion helps in absorption of minerals by roots????
Answer:
The soil water enters from the higher concentration to the lower concentration by the process of diffusion.
What does it mean for a cell to be
undifferentiated?
A. It just went underwent mitosis and is awaiting instructions.
B. It is not yet specialized and has the potential to become any type
of cell.
C. It has lost its DNA and has no instructions.
short debate of the ten percent plan and the Wade Davis Bill
Answer:
a
Explanation:
why is mushroom kept in kingdom fungi
please fast answer please
Answer:
Because mushrooms are a type of fungi they're basically fungi
Explanation:
3. What do you think most public water is used for?
Answer:
The Earth might seem like it has abundant water, but in fact less than 1 percent is available for human use. The rest is either salt water found in oceans, fresh water frozen in the polar ice caps, or too inaccessible for practical usage. While population and demand on freshwater resources are increasing, supply will always remain constant. And although it's true that the water cycle continuously returns water to Earth, it is not always returned to the same place, or in the same quantity and quality.
Current understandings of cell membranes incorporate the __________________________ model, where a flowing, phospholipid "sea" contains mobile glycolipids, sterols, and proteins.
Select one:
a. expanding balloon
b. quilt
c. temperature filtering
d. fluid mosaic
Which of these is made up of organs?
Choose 1 answer:
(A) a cell
(B) an organ system
(C) a tissue
Answer:
Organ System
Explanation:
A group of cells make a tissue.A group of tissues make an organOrgans combined together form an organ system.An organ system is made up of organs.
What are organ systems?An organ system is a biological system consisting of a group of organs that work together to perform one or more functions. Each organ has a specialized role in a plant or animal body, and is made up of distinct tissues.
Moreover, the 11 organ systems include the integumentary system, skeletal system, muscular system, lymphatic system, respiratory system, digestive system, nervous system, endocrine system, cardiovascular system, urinary system, and reproductive systems.
Hence, they are Integumentary System, Skeletal System, Muscular System, Nervous System, Endocrine System, Cardiovascular System, Lymphatic System, Respiratory System, Digestive System, Urinary System, and Reproductive System (Female and Male).
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17. What is meant by the transition interval of an indicator?
The pH range over which an indicator alters the color defines the transition interval of an indicator.
What do you mean by Transition?A Transition may be defined as a condition or process where one state of a compound changes into the other.
A Transition interval is a point where the color of indicators may change. For example, Phenolphthalein changes pink from colorless at a pH of 8-10. So, this point is called the transition interval.
Therefore, the pH range over which an indicator alters the color defines the transition interval of an indicator.
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Conclusions 2. Two new species of plants were introduced into an area that was low in available nitrogen compounds in the soil. One formed nodules and one did not. Which species would you expect to grow more robustly? Explain. (4 points) Answer here..
Answer:
The one forming nodules would grow better.
Because it may be a leguminous plant.
Rhizobium bacteria will reside in the root nodules and fix atmospheric nitrogen for these plants by symbiotic relation.
They will fix nitrogen in the soil and increase soil nutrient quality.
What calculators are allowed on the ap biology exam?.
Answer:
fourfunction, scientific, or graphing calculator
Explanation:
5. What is the difference between the meanings of the terms evolution
and natural selection?
Answer:
Evolution is a gradual change in the inherited traits of a population over many generations. Natural selection is a mechanism where the members of a population best suited to their environment have the best chance of surviving to pass on their genes.
Social networks and the reciprocal norms associated with these networks that encourage people to do things for each other are known as a. social capital. c. networking. b. state capitals. d. the digital divide. please select the best answer from the choices provided a b c d
Social networks and the reciprocal norms which are associated with these networks and encourages people to do things for each other is: A. social capital.
What is social capital?Social capital can be defined as the social networks and the reciprocal norms which are associated with these networks, and it is designed to encourage people to do things for each other.
This ultimately implies that, social capital is a network of relationships existing between people who live and work in a specific society, which enables it to function effectively and efficiently.
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Mom has heterozygous Type B blood. Dad has heterozygous Type A blood. What is the probability of them having a child with Type O blood? Use the Phenotype/Genotype chart to do a punnett square cross. )
0%
25%
50%
75%
Answer: The answer is 50% percent
Explanation:
The parents type mixes and creates an O or a different blood type.
Whats a independent variable and dependent varivle
Answer: The independant variable is what you change on purpose in the expirament and the dependant is the outcome of the expirament
Explanation:
Answer:
The dependent variable is the one thing that stays the same throughout the experiment.
The Independent variable is the one thing that changes in the experiment.
Example: You are measuring how far a marble will roll off of a ramp. The marble and distance is the dependent variable. The height of the ramp is the independent variable because you change the height every test
Explanation:
What would happen if eardrum is damaged ?
Answer:
A ruptured eardrum can result in hearing loss.
Explanation:
your middle ear can also be more prone to infections A ruptured eardrum usually heals within a few weeks without treatment (i got help from mayoclinic.com)
Answer:
You would not be able to hear as well, or, a damaged eardrum can even lead to hearing loss.
Bacteria are
genetically modified
to grow...
A. crops to farm.
B. insulin and human growth hormone.
C. ingredients for make up products.
D. growth media for microbiology.
Answer:
B.
Explanation:
Have a nice day :),and hope this helps
Answer: B. insulin and human growth hormone.
Explanation:
n this experiment the bag contains a hypertonic solution (sucrose), while the beaker only contains water. If you leave the bag inside of the beaker for approximately 45 minutes; the movement of water will occur from the ________ to the _________.
The water will move from beaker to the bag of sucrose due to concentration difference.
In which direction the water will move?The movement of water will occur from the beaker to the bag because the concentration of water is lower in the bag and higher in the beaker. So due to the process of diffusion, the water will move from the higher concentration region to lower concentration region.
So we can conclude that the water will move from beaker to the bag of sucrose due to concentration difference.
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The water in vegetables evaporates over time causing the vegetables to wilt. Why do grocery stores spray water on their vegetables?.
Answer: For aesthetic reasons and to charge extra.
Explanation: Shoppers are more drawn to vegetables with water because they look more hydrated and “fresher”. Vegetables absorb moisture, so they will weigh more, therefore shops can charge more.
Through transpiration, water is released
back into the atmosphere through the
plant's?
Answer:
Yes!
Explanation:
The process in which, water is evaporated from plant parts ( leaves and sometimes stem ) into the atmosphere, is called transpiration.
hope it helps..
please mark brainliest
Answer: Yes
Explanation:
what is the purpose of life? 0ω0
Answer:
Live, Laugh, Love ♡
Have a blessed day! ^^
(yes I'm being one of those cheesy ppl that says that )
Answer
"The meaning of life is to find your gift. The purpose of life is to give it away"-Pablo Picasso
Explanation:
How do you know there’s is DNA in fruit
Answer:
It is a plant
Explanation:
took the test
How is the biosphere interacting with the hydrosphere and geosphere in this river?
The biosphere interacts with the hydrosphere and geosphere in this river by drawing water and nutrients from there for their survival.
What is Biosphere?This is referred to the part of the Earth where different life forms exist and is also known as ecosphere.
Plants get nutrients from the geosphere while organisms derive water from the hydrosphere.
The correct question is:
How does the biosphere interact with the hydrosphere and geosphere in a river?
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which type of drosophila probably changed the least over time?
The type of Drosophila that probably changed the least over time is the Drosophila melanogaster.
What do you mean by Drosophila?A Drosophila may be defined as a fruit fly that serves as one of the most important model organisms in the field of biological sciences due to its large chromosomes, high reproduction rate, and various varieties.
As compared to Drosophila willistoni, Drosophila equinoxialis, Drosophila equinoxialis caribbensis, etc. Drosophila melanogaster changed very least over time after analyzing its evolutionary pathway.
It is because it may consist of a large chromosome but a simple arrangement of genes, its well-specified segment polarity genes, pair-rule genes, and maternal effect genes.
Apart from this, it may also be because of less natural selection applied to Drosophila melanogaster.
Therefore, the type of Drosophila that probably changed the least over time is the Drosophila melanogaster.
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Pls HELP ASAP !!!!!!!
what is the meaning of extincion?
Extinct: (of a species, family, or another group of animals or plants) having no living members; no longer in existence.\
Extinction: the fact or process of a species, family, or another group of animals or plants becoming extinct.
Help help pls!!!!! I will mark brainliest!!!!!
How does the small intestine and large intestine work together to break down food???
Answer:
the small intestine moves water from your bloodstream into your GI track to help break down to help break down food. The small intestine also absorbs nutrients. in the large intestine more water moves from your GI tract into your bloodstream