Answer:
A
Explanation:
The correct answer would be that the cell was submerged in a hypertonic solution.
A hypertonic solution is a solution with a higher concentration of solutes than that of the cytosol of a cell suspended in it. When a cell is suspended in a hypertonic solution, water moves osmotically from the cytosol to the hypertonic solution. This causes the cytoplasm to collapse and the cell becomes flaccid.
The correct option is A.
Answer:
D. The cell was submerged in a hypertonic solution.
Explanation:
when something is frozen does it increase or decrease in density?
Answer:
Water expands when it freezes making it less dense than the water from which it freezes. In fact, its volume is a little over 9% greater (or density ca.
Answer:
Depends on what is freezing. Generally it increases density.
Explanation:
water when frozen has a lower density. but generally freezing increases density because it packs the molecules tighter
list 5 types of bacteria d their unique home.
Describe the term "semi-permeable" (or "selectively-permeable) membrane. Why is it important?
Answer:
A semi-permeable membrane is a type of biological or synthetic, polymeric membrane that will allow certain molecules or ions to pass through it by osmosis. The rate of passage depends on the pressure, concentration, and temperature of the molecules or solutes on either side, as well as the permeability of the membrane to each solute. Depending on the membrane and the solute, permeability may depend on solute size, solubility, properties, or chemistry. How the membrane is constructed to be selective in its permeability will determine the rate and the permeability. Many natural and synthetic materials which are rather thick are also semipermeable. One example of this is the thin film on the inside of the egg.
Explanation:
An example of a biological semi-permeable membrane is the lipid bilayer, on which is based on the plasma membrane that surrounds all biological cells. A group of phospholipids (consisting of a phosphate head and two fatty acid tails) arranged into a double layer, the phospholipid bilayer is a semipermeable membrane that is very specific in its permeability. The hydrophilic phosphate heads are in the outside layer and exposed to the water content outside and within the cell. The hydrophobic tails are the layer hidden in the inside of the membrane. The phospholipid bilayer is most permeable to small, uncharged solutes. Protein channels are embedded in or through phospholipids, and, collectively, this model is known as the fluid mosaic model. Aquaporins are protein channel pores permeable to water. Information can also pass through the plasma membrane when signaling molecules bind to receptors in the cell membrane. The signaling molecules bind to the receptors, which alters the structure of these proteins. A change in the protein structure initiates a signaling cascade. The G protein-coupled receptor signaling provides is an important subset of such signaling processes.
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1) There is a glass of soda water sizzling do you think the oxygen atoms in the water will still exist as oxygen a million years from now
2) a glass of soda water water is sizzling do you think the water molecules will exist as water molecules in a million years
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The broadest group an organism can be classified into is its:
A. kingdom
B. domain
C. order
Answer:
B. Domain
Explanation:
In order from broadest to most specific:
Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species
Answer
Explanation:
The broadest category in the Linnaean system is the kingdom. Figure above shows the Animal Kingdom because Homo sapiens belongs to that kingdom. Other kingdoms include the Plant Kingdom, Fungus Kingdom, and Protist Kingdom. Kingdoms are divided, in turn, into phyla (phylum, singular)
What is the double layer that makes up cell membrane
Answer: phospholipids.
Explanation: hope this is helpfull
i am horrible at science. please help
breathing more deeply and frequently
Which statement about water best illustrates the property of adhesion?
Answer:
The correct answer is- water droplet found on a spider web in the morning
Explanation:
Hope this helps u
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Which table shows the most likely process and agent of erosion responsible for this rounded
sediment?
Answer:
B
Explanation:
They settle mostly in ocean an seas
How many valence electrons does carbon have? Is this atom satisfied? Explain.
Answer:
4 valence electrons
Explanation:
Because of the relative stability, these atoms often form covalent bonds rather than ionic bonds that need a charge. One example is Carbon. It has 4 valence electrons, so it can make a 4+ or a 4- charge.
Answer:
Carbon has 4 valence electrons. It is not satisfied. To be satisfied, it needs to covalently bond with 4 electrons to achieve octet (8 valence electrons).
Suppose you have two pieces of modeling clay. One piece contains more clay than the other. How do the two pieces of clay differ?
Which is the answer A B C Or D
Answer:
I believe that it might be choice A, but I'm not entirely sure.
The diffusion of a substance into or out of a cell requires
Answer:
Diffusion is one principle method of movement of substances within cells, as well as the method for essential small molecules to cross the cell membrane. Gas exchange in gills and lungs operates by this process. Carbon dioxide is produced by all cells as a result of cellular metabolic processes.
Explanation:
The diffusion of a substance into or out of a cell requires a process called diffusion, by which the molecules pass out through the plasma membrane.
What is diffusion?Diffusion is a key mechanism for material transfer within cells and for the passage of critical tiny molecules across the cell membrane. This process controls the exchange of gases in the gills and lungs. All cells release carbon dioxide as a byproduct of biological metabolism.
There are two processes by which the molecules pass through a semi-permeable membrane. The processes are osmosis and diffusion. When the material transfer from low concentration to higher concentration.
Thus, diffusion is the process by which molecules travel through the plasma membrane to allow material to enter or exit a cell.
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Which of the following is not a reason that nonnative species are reared outside their native ecosystems?
a. They are commercially important.
b. They are used to replace native species.
C. They are used for restocking programs.
d. None of the above
Answer:
D
Explanation:
All of the given reasons are reasons that nonnative species are reared outside their native ecosystems. The correct option is D.
What are nonnative species?Non-native species are animals, plants, and other organisms that do not develop natively in a region but are instead introduced through intentional or unintentional human activity.
Non-native species, unlike invasive species, do not necessarily threaten or threaten the existence of other species within the ecosystem.
Native plants and animals may go extinct as a result of invasive species, which can also decrease biodiversity, compete with native species for scarce resources, and disrupt habitats.
Ecosystems along the coast and in the Great Lakes may be severely disrupted, with significant negative economic effects.
They are employed in restocking efforts, to replace native species, and for commercial purposes.
Thus, the correct option is D.
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You need to find out why the GBR water is inhibiting (stopping) photosynthesis in the algae. The three major parts of photosynthesis are PSI, PSII and the Calvin cycle. The database has provided 3 things that could be inhibiting photosynthesis: high sea temperatures, paraquat, and diuron.
Answer:
Explanation:
The question is not complete below is the remaining part of the question
Justify your choice by writing a hypothesis to explain how it has stopped the algae from making ATP, NADPH and sugars. You will be able to revise your hypothesis as you do more experiments
Explanation:
The hypothesis will be
High sea temperature inhibit Algae growth
Herbicides reduces algae photosynthesis rate
Algae respond to temperature differently some thrive at a low temperature, some at a moderate temperature but when the temperature is very high the rate of photosynthesis will reduce because they can not undergo the normal body physiological function as a result of harsh environment. In green plant at a very high temperature stomata closes to regulate water loss this prevent Carbon dioxide from coming in and photosynthesis rate reduces
Paraquat and Diuron are herbicide that prevent the growth of plants, when they are sprayed Algae is affected they die from immediate action of this chemical and their colour changes since chloroplast the green pigment is where light hit for photosynthesis to occur when the color changes the active site is affected photosynthesis can no longer occur.
Answer:
Diuron
Explanation:
Increasing the temperature only decreases the sugar, not the ATP and NADPH. I predict that Diuron will be inhibiting photosynthesis because photosynthesis as a whole should not work if Photosystem II is interfered with. Also, because Paraquat only lowers NADPH and sugar and not ATP, Diuron is the only choice left.
What is genetic tagging?
O a technique that uses specific antibodies to
visualize features of cells
O a technique that visualizes how specific
genes are used within a cell
O a technique in which cells are purposefully
grown under specific conditions
o an imaging technology used to study features
smaller than the human eye can see
Answer:
a technique that visualizes how specific
genes are used within a cell
Explanation:
9. Which will most likely result if there is increased upwelling in a coastal
area?
A.Less living organisms in that area
b. Water will be warmer
C. Water will be colder
D.more aquatic life
Answer:
D more aquatic life
Explanation:
How far does a runner travel if they maintain a speed of 8.5 m/s for 240 s?
A population is growing at a rate of 2, 4, 8, 16, 32. Which type of growth does this describe?
Answer:
it is doubling
Explanation:
that is the answer
Answer:
x(2)
Explanation:
It's multiplying by 2
8. Write down the definition for the term "cross section” ?
Sitting down at her favorite restaurant, Aliyah is looking at the menu trying to figure out what she would like to have. She notes an asterisk next to one of the dishes and finding the note at the bottom of the menu, it says, “Although we will cook to order, be aware that consuming this dish raw or undercooked may increase your risk of contracting salmonella.” Which menu item is MOST likely being referenced here?
A. Eggs Benedict
B. Blackened Salmon
C. Chocolate Cake
D. Spinach Lasagna
Answer:
my guess is A. Eggs Benedict
Explanation:
eating eggs raw may lead to illness.
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DOC 1 Questions:
A. Is the suspected father actually the father of this child?
B. How do you know?
Answer:
He is not the father
Explanation:
As it says, the DNA matches up half of the time. The mother and child have 2/4 markers lined up, while the suspected father has no similar geonomes.
which cell is the only cell in a human body that could be seen with the naked eye
What is the role of creatine kinase in the myofibril?
Answer:
Creatine kinase (CK) has several functions in cellular energy metabolism. It catalyzes the reversible transfer of high-energy phosphate from ATP to creatine, facilitating storage of energy in the form of phosphocreatine.
The evidence suggests that the myofibrils' creatine kinase is sufficient to maintain typical tension and relaxation, typical Ca sensitivity, and typical kinetic properties.
What is myofibril?On the long axis of the myocytes, groups of myofibrils—long contractile fibers run parallel to one another (long single multinucleated cells that combine to form the muscle).
On the cell's long axis, the myocytes are situated next to one another in parallel.
Creatine, a molecule found in your muscle cells that aids in the production of energy by your muscles, needs a phosphate group added to it by CK.
Creatine becomes the high-energy molecule, phosphocreatine, which your body uses to produce energy, when CK attaches phosphates to it.
According to the research, the myofibrils' creatine kinase is enough to keep their regular kinetic features, like tension and relaxation and Ca sensitivity, in place.
Thus, this is the role of creatine kinase in the myofibril.
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which part of the cell membrane in nonpolar and prevents the cell from dissolving
Answer:The part of the cell membrane that is nonpolar and prevents the cell from dissolving is called the Nonpolar Fatty Acids.
Explanation:The part of the cell membrane that is nonpolar and prevents the cell from dissolving is called the Nonpolar Fatty Acids.
A feral cat needs to eat two mice a day to survive. A mouse needs to eat 5 seeds a day to survive. How many seeds are required to feed a feral cat for a week (7 days)?
Answer:
70 seeds
Explanation
5 is the food for a mouse (day)x2 mice for cat=10. 10x7(week)=70 seeds
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The genetic material is arranged differently in the cell of bacteria compared with animal and plant cells.
Describe two differences.
Answer:
unlike bacteria cells, plant and animal cells both have membrane. Bacteria cells lack membrane. Bacteria multiple by binary fission.
Animal and plant cells contain linear chromosomes. Bacteria have one circular chromosone and no nucleus. Plasmids carry genetic material in some bacteria.
What is bacteria?Bacteria are unicellular organisms that are very tiny. Bacteria can be found practically anywhere on Earth and play an essential role in the ecosystems that exist there. Some animals are able to survive in environments with both high temperatures and high pressures.
Both plant and animal cells store their genetic material in the form of chromosomes, which are linear structures. Bacteria do not possess a truly organized nucleus and instead contain a single chromosone that is round. Plasmids are tiny circular pieces of genetic material that can be carried by some bacteria. These plasmids carry additional genetic material.
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which member of the food chain has the most sunlight energy available to it
Answer:
The answer is the first trophic level.
Explanation:
This level contains the producers, which are all of the photosynthetic organisms.
What is the function of the excretory system?
remove waste
break down food
respiration
transport nutrients
Answer:
The excretory system removes waste
Phenylalanine is required for the production of many bodily proteins, but none of your cells are capable of synthesizing this essential amino acid. What type of metabolic pathway must be responsible for providing phenylalanine to your cells? How would your diet effect the mount of Phenylalanine that is available?
Answer and explanation:
Phenylalanine is an amino acid that is very important for our bodies to function correctly but it isn't synthesized in our cells, so the only way to incorporate it is by having it in our diets, this is why phenylalanine is an essential amino acid.
Phenylalanine can be found in milk, eggs, chicken, and liver, among other foods known to be good protein sources. Given the fact that phenylalanine is an essential amino acid, the amount we ingest of it in our diet will directly impact on the availability of this amino acid in our body.
Phenylalanine is an amino acid and, as such, it will enter the metabolic pathway of protein catabolism, where it will be degraded to be fully usable for the body. Phenylalanine will be metabolized into acetoacetic acid and fumaric acid, and is the precursor of catecholamines such as epinephrine and norepinephrine, while also being part of the structure of several neuropeptides.