The four types of macromolecules in cells are nucleic acids, lipids, proteins, and carbohydrates.
the immediate source of energy that powers a cells activities is
pls i’m getting timed
Answer:
smoke good luck buddy..
Are fibrous proteins heavier than globular proteins in terms of molecular weight? Why?
Answer:
Proteins range in molecular weight from 1000 to more than 1 million daltons (Da), but the folded size of a globular protein is not necessary correlated to its molecular weight. Proteins composed of about 250 amino acids or less often have a simple, compact globular shape. Larger globular proteins are usually made up of two or more recognizable and distinct structures, termed domains or modules. These are compact, folded protein structures that are usually stable by themselves in aqueous solution. Typical domain structures consist of hydrophobic cores with hydrophilic surfaces. Individual domains often possess unique functional behaviors and often perform unique functions within the larger protein in which they are found.
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Answer:
it has the greatest mass
Explanation:
the bigger it is the more the gravity is.
Maria gets a kit that lets you grow a mineral. The instructions say to pour a packet of liquid into a small container and to place the container in a sunny area. Maria follows the directions and when the liquid evaporates, she observes tiny minerals that are left behind in the container.
What is this process called?
A. oxidation
B. crystallization
C. altering minerals
D. organic mineral formation
Answer:
d
Explanation:
Crystallization generates solids by organizing atoms or molecules into a crystal structure. Crystals develop via solution precipitation, freezing, or rarely gas deposition. Therefore, option (B) is correct.
What is crystallization?The formation of a solid involves a process known as crystallization, in which the constituent atoms or molecules become highly ordered into a structure known as a crystal. Crystals can form in a number of different methods, including by precipitating from a solution, freezing, or, although this occurs less frequently, deposition directly from a gas.
There are two primary stages involved in the crystallization process. The first step is called nucleation, and it refers to the formation of a crystalline phase from either a liquid that has been supercooled or a solvent that is supersaturated. Crystal growth is the term given to the second stage of the process, which involves an increase in the size of the particles involved and ultimately results in a crystallized form.
Therefore, when a solution is evaporated, some of the solvent evaporates, leaving behind a saturated solution. Cooling the saturated solution forms crystals. Filtration removes crystals.
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During aerobic respiration, which of the following directly donates electrons to the electron
transport chain at the lowest energy level?
A. NADH
B. ATP
C. ADP + Pi
D. FADH2
E. None of the above
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1
11
Answer:none above
Explanation:
ok
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The sodium-potassium ion pump simultaneously transports two different solutes. Is the sodium-potassium ion pump an example of a cotransporter? Justify your answer by explaining the mechanism of the pump.
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Answer:
The sodium-potassium ion pump does not simultaneously transport sodium and potassium molecules, but alternatively, it is a primary active transport and not a co-transport.
Explanation:
The sodium-potassium ATP-ase pump is considered an active transport mechanism, in charge of transporting sodium (Na⁺) and potassium (K⁺) ions from and to the exterior, in alternative form.
When the pump opening is inside it has a high affinity for Na⁺ ions, which it introduces into the cell. Once Na⁺ is transported, the pump changes its configuration, releases the Na⁺ ions and has its affinity increased by the K⁺, to which it binds and transports to the outside. This implies a primary active transport type.
The cotransport, a secondary active transport, can carry out the transport of molecules and ions simultaneously, since the configuration of the transporting protein allows it. An example of this is the sodium-glucose pump.
The Na⁺-K⁺ ATP-ase pump, being an alternate, non-simultaneous form of transport, is not considered a co-transport.
A diet that lacks a mineral
iron leads to a disease called
Answer:
anemia
Explanation:
Iron deficiency can lead to anemia.
Does Evolution Exist?
Answer:
yes evolution do exist in nowadays also.
What is opposite of the absolute value of -4?
Answer:
Explanation:
4......
Complete the following statement: Oxygen and glucose are products for _____(1)_____, while being reactants for _____(2)_____. (1) photosynthesis, (2) cellular respiration (1) cellular respiration, (2) photosynthesis (1) fermentation, (2) anaerobic respiration (1) aerobic respiration, (2) photosynthesis
Answer:
(1) aerobic respiration, (2) photosynthesis
Explanation:
Answer:
(1) aerobic respiration, (2) photosynthesis
Explanation:
How can traits affect fitness and how
can natural selection change the
presence of certain alleles over time?
Answer: Natural selection allows the survival of organisms with beneficial traits.
Explanation:
Natural selection can be defined as the differential survival and reproduction of the members of the population that have beneficial phenotypic traits to survive in unfavorable environment. These organisms reproduce and pass on their traits to the next generation such species does not extinct in future.
The natural selection allows evolution of species with the adaptation of new traits so as to allow the survival of the organism.
The purpose of the Darwin Finch lab was to establish that the relationship between food sources and beak shape was a taste preference.
a. True
b. False
Answer:
False. The purpose of the Darwin Finch lab was to establish that the relationship between food sources and beak shape was food availability.
Explanation:
Finches speciation was due to geographical isolation on islands and the differences in their picks were an evolutive adaptation that reflected feeding habits. Their speciation depended on or was the result of their adaptation to the island and its characteristics. The finches´ beaks evolved according to food availability. Large beaks are better for islands with larger seeds, while pointed beaks are better for getting insects out of trees.
Choose the equation that relates work to force and distance.
a
work =
force
distance
b
work
distance
force
c с
work = force x distance
d
work = force + distance
Answer:
c
Explanation:
work=force×distance
Answer: c
Explanation:
escribir una carta abierta explicando la importancia de promover la igualdad entre hombres y mujeres
Answer:
BOTH ME LA PELAN KEKEKE
Explanation:
revisions to predictions about scientific phenomena can be based on
The correct answer is D. All of these
Explanation:
Scientific predictions are based on previously recorded information, which includes observations, data gathered with precise instruments, mathematical models, measurements, among others. This allows scientists to understand phenomena objectively by using the scientific method and to make accurate predictions.
Despite this, scientific predictions might slightly, or completely change over time. This is because new tools or methods might provide scientists with new contradictory evidence about the phenomenon. Moreover, any type of evidence gathered as part of the scientific method is valid to evaluate a previous prediction such as observations, data, models, measurements, among others.
Why is "dysfunction of the brain" so hard to wrap your head around? How is it different
from, say "dysfunction of the pancreas"?
Answer: I would say it's because there is so much about the brain that we don't know about yet, it's harder for us to understand certain illnesses and dysfunctions because of the sheer complexity of the organ and the role it plays in our own existence. It's easier to understand an organ such as the pancreas because while both fragile and complex, it is not nearly as mysterious as the human brain and doesn't have even nearly the same range of function.
Explanation:
Which sentence best describes these two cell models?
LoNoN
olol colo
o
A
B
A. They have the same surface area, but model B has more volume.
B. They have the same surface area, but model A has more volume.
C. They have the same volume, but model B has more surface area.
O D. They have the same volume, but model A has more surface area.
The sentence that best describes the two cell models is they have the same volume, but model B has more surface area. The correct option is C.
What is a surface area?The surface area of any solid object is the total area covered by it. Surface area is calculated by adding all the areas, the top, base, and lateral.
Model A and B have the same volume but as a model, B is divided into four parts, it increased its surface area.
Thus, the correct option is C. They have the same volume, but model B has more surface area.
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Bar magnets placed on table may not point along N-S direction . Why? Give reasons.
Answer:
lt is because the magnetic field of the magnet is equal in magnitude to the Earth's horizontal magnetic field but it is in opposite direction
Explanation:
Thus the net magnetic field at these two points is zero
Include an explanation of how light, Carbon dioxide, and Chlorophyll are relevant
to the function of photosynthesis)l
Answer:
Photosynthesis is a process used by plants and other organisms to convert light energy into chemical energy that can later be released to fuel the organisms' activities. This chemical energy is stored in carbohydrate molecules, such as sugars, which are synthesized from carbon dioxide and water – hence the name photosynthesis, from the Greek phōs , "light", and sunthesis, "putting together". In most cases, oxygen is also released as a waste product. Most plants, most algae, and cyanobacteria perform photosynthesis; such organisms are called photoautotrophs. Photosynthesis is largely responsible for producing and maintaining the oxygen content of the Earth's atmosphere, and supplies most of the energy necessary for life on Earth.
Schematic of photosynthesis in plants. The carbohydrates produced are stored in or used by the plant.
Overall equation for the type of photosynthesis that occurs in plants
Composite image showing the global distribution of photosynthesis, including both oceanic phytoplankton and terrestrial vegetation. Dark red and blue-green indicate regions of high photosynthetic activity in the ocean and on land, respectively.
Although photosynthesis is performed differently by different species, the process always begins when energy from light is absorbed by proteins called reaction centres that contain green chlorophyll pigments. In plants, these proteins are held inside organelles called chloroplasts, which are most abundant in leaf cells, while in bacteria they are embedded in the plasma membrane. In these light-dependent reactions, some energy is used to strip electrons from suitable substances, such as water, producing oxygen gas. The hydrogen freed by the splitting of water is used in the creation of two further compounds that serve as short-term stores of energy, enabling its transfer to drive other reactions: these compounds are reduced nicotinamide adenine dinucleotide phosphate (NADPH) and adenosine triphosphate (ATP), the "energy currency" of cells.
In plants, algae and cyanobacteria, long-term energy storage in the form of sugars is produced by a subsequent sequence of light-independent reactions called the Calvin cycle; some bacteria use different mechanisms, such as the reverse Krebs cycle, to achieve the same end. In the Calvin cycle, atmospheric carbon dioxide is incorporated into already existing organic carbon compounds, such as ribulose bisphosphate (RuBP). Using the ATP and NADPH produced by the light-dependent reactions, the resulting compounds are then reduced and removed to form further carbohydrates, such as glucose.
The first photosynthetic organisms probably evolved early in the evolutionary history of life and most likely used reducing agents such as hydrogen or hydrogen sulfide, rather than water, as sources of electrons. Cyanobacteria appeared later; the excess oxygen they produced contributed directly to the oxygenation of the Earth, which rendered the evolution of complex life possible. Today, the average rate of energy capture by photosynthesis globally is approximately 130 terawatts, which is about eight times the current power consumption of human civilization. Photosynthetic organisms also convert around 100–115 billion tons (91–104 petagrams) of carbon into biomass per year.
The fact that plants receive some energy from light—in addition to air, soil, and water—was discovered in 1779 by Jan Ingenhousz.
largest phylum of animals
Answer:
you suck
Explanation:
Answer:Arthropoda
Explanation:(also known as the arthropod kingdom)
I hope that helped<3
How can natural selection result
in the adaptation of a population?
Answer: The traits of those who died before reproducing deemed "undisireable" (like a tale,scales,wings etc.) would have died out as they would not have had the opportunity to pass on these genes. Those of the same species who survived due to a lack of the "undisireable" trait would have the opportunity to reproduce and pass on the complete lack of the trait itself or a smaller version of the trait. This is what enables different species to adapt to live in different enviorments,you can observe this in different species that share a common ancestor.
Explanation: It's kind of in the answer
Which is the herbivore
Answer:
A herbivore is an animal that eats only plants. The animal has special teeth that are normally flat used just for their adaptation to eating the plants.
Explanation:
the way I remember this is the word herb reminds me of a plant
Which of the following statements is not true about the early history of psychology?
A. Psychology has its foundations in philosophy and physiology.
B. The first psychological laboratory was established by Wilhelm Wundt in 1879.
C. The first two major schools of thought were functionalism and behaviorism.
D. Psychoanalytic theory was one of many approaches that emerged in psychology.
Answer:C
Explanation:the first two major schools thought were functionalism &’ behaviorism .
Answer:
C. is the correct choice
Explanation:
Hope that this helps. Peace and Love
Suppose that black fur (B) is dominant over brown fur (b) in cows. If two heterozygous black cows are crossed, what percentage of their babies would be brown?
Answer:
25%
Explanation:
If you used a punnet square you would end up with BB, Bb, Bb, And bb. Sence only one out of the four are bb.
Why do the crocodile and whale bring their head repeatedly on air?
Answer: They have lungs.
Explanation:
Whales and Crocodiles use lungs to breathe (like us humans) rather than gills so, they need to come up to breathe.
I hope this answered your question, my first language is not english.
In this lab, you will go on a virtual fishing trip,
looking for flounder. Each time you catch a fish,
you will use your handy field guide to identify what
species the fish is.
Write a scientific question that describes the
broader skill you are learning by doing the above.
Answer:
How does a dichotomous key help you identify unknown specimens based on their traits?
Explanation:
see pic for edg
Answer:
Lesson Question: How does a dichotomous key help you identify unknown specimens based on their traits?
Compare your question to the lesson question above. Check all elements that you included.
a dichotomous key
a verb such as classify, identify, determine, recognize, or name
the specimens’ traits (such as body shapes, types of fins, tail shape, etc.)
Explanation:
Sandra was trying to water the flowers with the hose, but even with the water turned up to full force she could not get it to reach the farthest flowers. Her sister told her to cover part of the end of the hose mouth with her thumb. When she did this, the water shot out farther. Why did putting her thumb over the end of the hose make a difference?
A. The thinner stream of water could travel farther because it was lighter.
B. Sandra added more energy to the water by making it swirl inside the hose.
C. The same amount of energy in the water was forced through a smaller space.
D. The warmth of Sandra's thumb increased the amount of energy in the water.
Answer:
I think it's a sorry if its wrong
Answer
It's C, "Forced"
Explanation:
Crustal movements in one location can affect locations far away.What evidence from the text supports this conclusion?A. Steady advancement in technology has allowed geologists to better understand plate tectonics. B. The mantle is made up of elements like oxygen, silicon, and magnesium.C. Geologists mapped the ocean floor and discovered the mid-oceanic ridge.D. Divergent boundaries in the ocean create a chain reaction that pulls plates apart on land
The geologists mapped the ocean floor and discovered the mid-oceanic ridge. The correct option is C.
What is crustal movement?The movement of the plates that make up the Earth's crust is referred to as tectonic shift. The Earth is comprised of a many major plates and several minor plates.
The Earth is constantly undergoing change. The Earth's crust, known as the lithosphere, is made up of 15 to 20 moving tectonic plates.
Very active crustal movements in subduction zones, characterized by uplift and erosion in island arcs and subsidence and sedimentation in ocean trenches, continue indefinitely.
The upward movement of hot rocks from deeper parts of the Earth's crust is unavoidable due to uplift and erosion of the Earth's crust.
Geologists discovered the mid-oceanic ridge after mapping the ocean floor.
Crustal movements generate boundaries that are convergent, divergent, and transformative.
Thus, the correct option is C.
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