Transporters and Channels select which solutes they help move across the membrane by : Channels distinguish between solutes primarily based on size and electric charge; transporters bind their solutes with high specificity, similar to how an enzyme binds its substrate.
Transporters and channels are membrane proteins that mediate the transport of metabolites, water, and ions across biological membranes. Membrane transport proteins are important for maintaining homeostasis and ensuring cell survival intracellularly or during environmental stress.
Channels are membrane-spanning water-filled pores through which substrates passively diffuse along electrochemical gradients when regulatory gates are open. Transporters undergo cycles of conformational changes associated with substrate binding and dissociation on opposite sides of the membrane. Membrane proteins that cause selective permeability are called ion channels, and other proteins called active transporters create and maintain ion gradients. As the name suggests, ion channels have pores that allow certain ions to pass through the nerve cell membrane.
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Which scenario describes a relationship of predator-prey?
Answer:
A tapeworm latches itself in the intestines of a rat, feeding off all the nutrients eaten by the rat.
Explanation:
Took the quiz enjoy your A+
Answer:
A polar bear catches a seal for dinner.
Explanation:
Don't listen to the other answer it is incorrect.
Which of the following is not a way humans affect the Carbon Cycle?
a
Volcanic eruption which spew tons of carbon dioxide and other carbon rich gases into the air.
b
Conversion of forest and ecosystems into cities and other areas.
c
Burning of fossil fuels through transportation and industry.
d
Increase in farming and ranching of animals, which changes land use and produces Carbon rich gases.
Answer:
D or B
Explanation:
I think this is correct
hope this helps :)
Cells divide for _. (check all that apply!)
a
repair
b
reproduction
c
growth
d
carbohydrate synthesis
Answer:
a. repair
b. reproduction
c. growth
Explanation:
the answers would be a, b, and c. hope this helps!
The energy of an object due to its temperature is called
a. Temperature Energy
b. Thermometer
c. Thermal Energy
d. Chemical Energy
Answer:
C. Thermal energy.
The energy of an object due to its temperature is called Thermal energy.
We can study DNA to trace the processes of evolution
A) True
B) False
Answer:
True
Explanation:
It's true because it wants to be true.
HELP ASAP PLS!
In the diagram below, which represents the male reproductive organs of the flower?
Structure A
Structure B
Structure C
Structure D
Answer:
C.
Explanation:
It's the stamens, they release the pollen which is a male reproductive cell in plants. Hope that helps!
Answer:
The answer is C)
Explanation:
Why do you think that it is important for health care workers to have corona virus vaccine?
Yes, I think it is essential for health care workers to receive the coronavirus vaccine. Health care workers, such as doctors and nurses, help patients with and without the virus. I believe that all health care workers should be vaccinated for their own health and their patients' health.
Mitosis occurs in certain types of eukaryotic cells called:
A. Gametes
B. Somatic cells
C. Sex cells
D. Egg and sperm cell
Answer: somatic cells
Explanation: the other three don’t cause mitosis, instead cause meiosis
Your mother asked you to put water soluble fertilizer around the roots of her prize winning rose bush. The following week, you noticed the leaves of her rose bush are beginning to turn yellow and wilt. In terms of tonicity and water movement, explain why the rose began to die after the addition of fertilizer. Bonus: What can you do to solve this problem
Answer/Explanation:
The water soluble fertilizer that was added created a hypertonic environment. Concentration of solute is higher around the plant cells thereby leading to the movement of water molecule away from the cells of the rose bush. This is why the rise bush began to wilt as the leaves turn yellow.
Solution:
Give the plants a reasonable amount of water to cause the solution to be isotonic. When the amount of fertilizer and water is relatively balanced, the plants would be able to utilize the fertilizer, feed well and grow well.
HELP ME PLEASE ILL GIVE YOU POINTS AND BRAINLIEST
word bank :
methane
reemitted heat
reradiated heat
solar radiation
carbon dioxide
label the diagram
Answer:
A= Methane
B= Carbon Dioxide
C= Solar Radiation
D= reemitted heat
E = reradiated heat
Sauce me brainliest
how do you prove the fact that green plant releases Oxygen gas in the process of photosynthesis explain the experiment.
Answer:
Aim : To prove that oxygen is produced during photosynthesis
Procedure : Place water plant in a beaker containing pond water.
Cover the plant with short stemmed funnel.Invert the test tube full of water and cover the stem of the funnel.While placing the test tube, ensure that the level of the water in beaker is above the level of stem of funnel.Expose the apparatus to the sunlight.
After few hours, gas bubbles will form and collect in the test tube.Test the gas in the test tube.
A glowing splinter bursts into the flame shows the presence of oxygen.
Observation: Gas bubbles in a test tube.
Result: Presence of oxygen.
Conclusion: Formation of gas bubbles prove that oxygen is produced by the green plants
Use the cladogram to answer the question. Which trait(s) does the salamander have?
Lancelet
(outgroup) Lamprey Tuna Salamander Turtle
Leopard
Hair
Amniotic e99
Four walking legs
Jaws
Vertebral column
amniotic edd and hair
vertebral column, jaws, and four walking legs
four walking legs only
vertebral column and jaws only
Answer:
everything plesiomorphic (ie ancestral) so 4 walking legs, jaws and vertebral column
Explanation:
hi guys so i have two pet frogs and yesterday my sister wanted to be a co owner of them she does nothing for them just takes pictures what should i tell her and she also wants to change their names to a name i dont like its my frog not hers and she wants it to be hers to and change the name what should i do
Answer:
You should tell her that it is you frog, and Since you have two let her name one of the frogs that way she does not get upset or mad or take turns with a frog like she gets a week and then you get it
trust me I am the oldest out of 4 kids so
Explanation
Hope this helps you
Which of the following cellular components would be most sensitive to phospholipases?
The lipid bilayer
Cholesterol
Microfilaments
Answer:
cholesterol
Explanation:
it enhances Chlorophile in plants thus also deals in rate of photosynthesis
The five factors that are common characteristics of living things include cellular composition, reproduction, response and adaptation, metabolism, and what?
A. diversity
B. systems
C. evolution
D. Phylogenetics
Answer:
option C is answer evolution
Five factors are common characteristics of organism reproduction, reaction and adaptation, metabolism, and evolution.
What are the five characteristics of living things?Big idea: All living things share certain properties such as tissue, fertility, growth and development, energy expenditure, homeostasis, response to the environment, and adaptability.
What are the characteristics of living things?Organisms have many characteristics of different pronunciations. They breathe, move, respond to stimuli, breed, grow and depend on the environment.
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Answer this question
What does Plato mean when he says education should be a cure?
Answer:
Plato believes that education is an attempt to cure a mental illness instead of using a medicine. he believes that this will help bring out their talents instead of keeping them inside.
Explanation:
What do these do ?Endocrine Glands, hormones :
A. Transports nutrients and oxygen to the body, removes waste
B. Sends chemical messages for growth, reproduction, and
: Kidneys, bla energy processes
C. Filters the blood to removes toxins, excess water, and other
wastes
D. Works with skeletal system to procide movement, helps
digest food, pump heart, and move blood through veins
temperature, detects stimuli fro
E. Produces sex cells (sperm and ovum), nurtures and protects growing fertilizer egg
F. Provides support and structure to the body, stores minerals, produces blood cells, works with muscular system for movement
Answer:
F. Provides support and structure to the body, stores minerals, produces blood cells, works with muscular system for movement
What happens in an ad hominem persuasive technique? A limited number of options are presented. A person is attacked rather than an argument. Loaded language is used to appeal to emotions. A quick judgment is made without the use of evidence.
Answer: B
Explanation:edg2021
In an ad hominem persuasive technique a person is attacked rather than give an argument.
What is an ad hominem argument?
An ad hominem reasoning argument is a type of argumentation where its validity is not based on an attribute.
An ad hominem argument is fallacious because it does not involve verifiable information to be proved.
This type of argumentation occurs when one person is attacked based on feelings of prejudice and or fallacious commentaries.
In conclusion, a person is attacked rather than give an argument in an ad hominem persuasive technique.
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es below carefully
Leaf A
Leaf B
Do not compare the size and colour of the leaves.
Based on the diagrams shown above,
state one similarity between Leaf A and Leaf B.
Answer:
They both have a petiole
Explanation:
Leaf A and Leaf B both possess a petiole.
A petiole is the part of the leaf found beneath it which attached the leaf to a stem.
Observing both leaves, they both have this in common. Therefore, they are similar because they both have petiole.
As atmospheric CO2 increases, the amount of CO2 dissolved in seawater is expected to increase as well. This produces more carbonic acid, which then dissociates into hydrogen ions and something else.
Answer:
(HCO3-) bicarbonate
Explanation:
1. Populations do not permanently remain at carrying capacity T/F
a butterfly has a long dash tube called dash
Answer:
cool what about it
Explanation:
Answer:
cool
Explanation:
What are TWO methods that can be used by the villagers to catch fish in the river?
Answer:
Hand operation
Hook and line
Explanation:
The order of the genes on a plant chromosome is A, B, C, where A and B are located 10 cM apart and B and C are located 3 cM apart. What is the probability that the trihybrid ABC/abc will produce any kind of recombinant gamete
Answer:
Double Crossing-over prob = 0.3% Simple Crossing-Over prob A-B = 9.7%Simple Crossing-Over prob B-C = 2.7%Total Crossing-Over prob = 12.7%Explanation:
Available data:
order of the genes on a plant chromosome is A, B, CA and B are located 10 cM apartB and C are located 3 cM apartThe genetic distance = recombination frequency x 100 expressed in map units (MU). One centiMorgan (cM) equals one map unit (MU).
We can use the provided map with the distances between genes to predict the occurrence of any kind of recombinant gamete.
We know that there is a probability of a simple crossing over to occur between genes A and B, or between genes B and C. And we also know that there is a probability of double crossing-over occurrence.
We can get the probability of the double-crossing over by multiplying the recombination frequencies between A-B and B-C. So,
DCO prob = recombination frequency A-B x recombination frequency B-C
= 0.1 x 0.03 = 0.003 = 0.3%
DCO prob = 0.3%
According to this, we would expect to find
0.15% AbC0.15% aBcNow we need to know what are the probabilities of getting a simple crossing-over, SCO. We already have the genetic distances between genes. 10 cM equals 0.1 of recombination frequency, and 3cM equals 0.03 of recombination frequency. However, we can not estimate the probabilities of simple crossing over using only this information, because this data is including the probabilities of the double crossing-over occurrence. So we need to substrate this percentage.
SCO prob A-B = 0.1 - 0.003 = 0.097 = 9.7%
SCO prob A-B = 9.7%
we would expect to find
4.85% Abc4.85% aBCSCO prob B-C = 0.03 - 0.003 = 0.027 = 2.7%
SCO prob B-C = 2.7%
we would expect to find
1.35% ABc1.35% abCThe total Crossing-over probability, TCO, is then the sum of all the crossing over probabilities,
TCO= SCO A-B + SCO B-C + DCO
TCO prob = 9.7% + 2.7% + 0.3%
TCO = 12.7%
Which best illustrates a result of natural selection? a bat that is born with a wing that is missing the web dark-colored hares living in a snowy area mosquitoes that transmit disease to humans giraffes having increasingly longer necks over time Mark this and return
Answer:
D) giraffes having increasingly longer necks over time
Explanation:
If two-parent with AB blood group claim and say that they have a baby with O blood group is born to them and it is their own baby and not adopted. Do you think they are speaking the truth?
What does it mean if a galaxy gives off light that has been shifted toward the red
end of the electromagnetic spectrum?
Answer: Redshift and blueshift describe how light shifts toward shorter or longer wavelengths as objects in space (such as stars or galaxies) move closer or farther away from us. ... When an object moves away from us, the light is shifted to the red end of the spectrum, as its wavelengths get longer.
Explanation:
Hi i need help with this, it shouldnt be too hard.
Describe the difference between gene mutations and chromosomal mutations, including:
- What are they?
- How do they occur, including their types?
- When will they result in a change in the phenotype of offspring?
Explanation:
Genetic alternations include chromosomal abnormalities and gene mutations. Chromosomal abnormalities generally arise during cell division. ... Gene mutations are permanent changes in DNA gene sequence. They can arise during normal DNA replication or in response to environmental factors.
Answer:
When a gene mutation occurs, the nucleotides are in the wrong order which means the coded instructions are wrong and faulty proteins are made or control switches are changed. The body can't function as it should. Mutations can be inherited from one or both parents. They are present in the egg and/ or sperm cells.
What type of mutation can affect offspring?
The only mutations that matter to large-scale evolution are those that can be passed on to offspring. These occur in reproductive cells like eggs and sperm and are called germ line mutations. No change occurs in phenotype. Some mutations don't have any noticeable effect on the phenotype of an organism.
1. What is a biogeochemical cycle?
2. What drives, or powers, the water cycle?
3. What causes water to condense and form clouds?
Answer:
1. In ecology and Earth science, a biogeochemical cycle or substance turnover or cycling of substances is a pathway by which a chemical substance moves through biotic and abiotic compartments of Earth.
2. The sun, which drives the water cycle, heats water in the oceans. Some of it evaporates as vapor into the air. Rising vapor cools and condenses into clouds.
3. Heated by sunshine, the ground heats the air just above it. That warmed air starts to rise because, when warm, it is lighter and less dense than the air around it. As it rises, its pressure and temperature drop causing water vapor to condense. ... The air cools as it rises, and eventually clouds form.
Explanation:
what is a reactant of photosynthesis
Answer:
water carbon dioxide and energy
the products are glucose and oxygen
Explanation: