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Dominik [7]
3 years ago
10

A direct variation always goes through the origin of the coordinate plane. a. True b. False

Biology
2 answers:
Afina-wow [57]3 years ago
4 0
True 

A direct variation always goes through the origin of the coordinate plane is a correct statement.
Nina [5.8K]3 years ago
4 0

Answer :  The given statement is TRUE.

Step-by-step explanation:  The given statement is

"A direct variation always goes through the origin of the coordinate plane."

We are to check whether the above statement is true or false.

In the two dimensional coordinate, let the Y-coordinate (y) varies directly as the X-coordinate (x).

Then, we can write

y\propto x\\\\\Rightarrow y=kx,~~\textup{where 'k' is the constant of proportionality}.  

We see that, for any real number 'k',

the equation y = kx is the equation of a straight line passing through the origin, because when x = 0, then y = 0.

So, (0, 0) is always a point on the line y = kx. That is, the line will always pass through the origin.

Thus, a direct variation always goes through the origin of the coordinate plane. The statement is TRUE.

If we take k = 2, then the equation becomes y = 2x. The graph of the line is shown in the attached figure. We see that the line passes through the origin.

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zheka24 [161]

Answer: IQUID WATER DUE TO LOW ATMOSPHERIC PRESSURE WHICH IS LESS THAN 1% OF THE EARTHS EXCEPT AT THE LOWEST ELEVATIONS FOR SHORT PERIODS.  ( FOR FURTHER INFORMATION GO TO MARS - WIKIPEDIA https://en.m.wikipedia.org)

Explanation: MARS IS THE 4TH PLANET FROM THE SUN . IN MARS THE IRON OXIDE PREVALENT ON ITS SURFACE GIVES IT A REDDISSH APPEAREANCE THAT IS DISTINCTIVE AMONG THE ASTRONOMICAL BODIES VISIBLE TO THE NAKED EYE.

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3 years ago
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What would happen to the concentrations of ATP, NADPH and Sugars if PSI stopped
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Answer:

Concentrations of ATP, NADPH and sugars would decrease

Further Explanation:

  1. Light energy is absorbed and transferred to the reaction center.
  2. A water molecule is split.
  3. Electrons are transferred from photosystem II to photosystem I.
  4. ATP is synthesized from ADP and inorganic phosphate.

Photosynthesis is a chemical pathway that’s integral to producing energy in plants and other primary producers. Energy in the form of molecules of glucose is produced from light, water and carbon dioxide while oxygen is released. This occurs in several complex steps, photosynthesis is a rate limited reaction, depends on several factors including carbon dioxide concentration, ambient temperature and light intensity; the energy is retrieved from photons, I.e. particles of light, and water is used as a reducing agent. This occurs in the thykaloids, where pigment molecules like chlorophyll reside.

The chloroplast is a membrane bound organelle found in plants. It contains several invaginations of a plasma membrane called the thylakoid membrane. This contains chlorophyll pigments, in stacks called granum, while the internal spaces of the organelle are called the lumen. Liquid surrounds the granum, forming the stroma.

During the light reaction:

  • Light is absorbed by pigments in phosystem II (PSII). This energy is transferred among pigments til it gets to the reaction center, and is transferred to P680; this promotes an electron to a higher energy level where it then goes to an acceptor molecule.
  • Water supplies the chlorophyll in plant cell with replacement electrons for the ones removed from photosystem II. Additionally, water (H2O) split by light during photolysis into H+ and OH- acts as a source of oxygen along with functioning as a reducing agent.
  • the electron moves down an electron transport chain (ETC) to PS I where it experiences continuous energy loss. This energy fuels the pumping of H+ from the stroma to thykaloid, leading to the formation of a gradient. The H+ move along their gradient and cross through ATP synthase, into the the stroma.
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  • The electron gets to photosystem I where it goes to pigments at P700. It absorbs light energy, the electron is promoted to a higher energy level, and passed to an electron acceptor. This leaves a space for another electron which is then replaced by one from photosystem II.
  • in the ETC, the molecule NADP is reduced to NADPH by providing H+ ions. NADP and NADPH are integral to the Calvin cycle where monosaccharides or sugars like glucose are produced after the modification of several molecules.

If PSI is stopped, this disrupts the ETC and prevents regeneration of NADPH along with ATP production. ATP is an energy storage molecule reuired for the producton of several compounds. Additionally, NADP and NADPH are integral to the dark reactions, or Calvin cycle where monosaccharides or sugars like glucose are produced after the modification of several molecules.

Learn more about Photosynthesis at brainly.com/question/4216541

Learn more about cellular life at brainly.com/question/11259903

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IceJOKER [234]

Answer:

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Explanation:

Storing food requiring a higher cooking temperature, this temperature pasteurizes the food that kills the bacteria inside it, and low temperature stops their growth. So, such biological contamination is seized by temperature variations.

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Answer:

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Explanation:

Hope that helps, if so may i please have brainliest, as well as i hope you have a wonderfully great day!!!

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