What does the word cycle tell you about the chemical reactions of the Calvin cycle

QUESTION POSTED AT 14/02/2020 - 05:30 PM

Answered by admin AT 14/02/2020 - 05:30 PM

Well cycle means that it will keep on going through the sequence of events until something causes the cycle to end. thats it get it or not
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Related questions

What happens to the bonds between atoms when chemical changes occur

Chemical reaction happens, reaction occurs when two or more molecules interact and the molecules change.

ANSWERED AT 22/02/2020 - 10:43 PM


QUESTION POSTED AT 22/02/2020 - 10:43 PM

The process of respiration is part of the ____________________. a. water cycle c. carbon cycle b. wind cycle d. nitrogen cycle

I think it's D ?? not sure though

ANSWERED AT 22/02/2020 - 06:21 PM


QUESTION POSTED AT 22/02/2020 - 06:21 PM

My test is timed PLse answer What is the basis of all sounds? A.Vibrating molecules in the air B.wave cycles C.nodes D.waveforms

I wanna say the answer is a 

ANSWERED AT 22/02/2020 - 05:17 PM


QUESTION POSTED AT 22/02/2020 - 05:17 PM

An example of chemical energy

Batteries  are an example  of chemical energy 

ANSWERED AT 22/02/2020 - 04:35 PM


QUESTION POSTED AT 22/02/2020 - 04:35 PM

What "powers" the "Water Cycle"?

It is the sun because without the sun it would be could and the rain will turn to hail

ANSWERED AT 22/02/2020 - 04:19 PM


QUESTION POSTED AT 22/02/2020 - 04:19 PM

You can sometimes figure out the meaning of a phrasal compound by looking at the words' context. What is context?

Context refers to the place in a scentence the word is used. I.e. The place of a word in a sentence.

ANSWERED AT 22/02/2020 - 03:59 PM


QUESTION POSTED AT 22/02/2020 - 03:59 PM

Write a 250 word research report on a pathogenic bacterium that is not discussed in this unit (you may choose one from the gram-positive cocci table). Include the history, the scientific name of the bacterium, vectors, symptoms, etc.

The one I chose is very interesting I think you will enjoy it.

Staphylococcus aureus (MRSA)

First diagnosed in 1884 MRSA is a Flesh Eating Disease that can easily spread through contact with an infected host. It's scientific name is Methicillin-resistant Staphylococcus aureus. MRSA's symptoms include pimples, boils, Red lumps, etc. These areas often contain pus, lots and lots of pus. Some antibiotics can treat this, but it is rapidly adapting to these are growing resistant to antibiotics that previously worked. This is very lethal.

Hope this helped. Have a great night! :)

ANSWERED AT 22/02/2020 - 03:36 PM


QUESTION POSTED AT 22/02/2020 - 03:36 PM

What is the difference between an exergonic reaction and an endergonic reaction

An exergonic reaction proceeds with a net release of free energy and is spotaneous. Endergonic reactions are nonspontaneous; they must absorb free energy from the surroundings.

I hope this helped!! Have a great day :))

ANSWERED AT 22/02/2020 - 03:17 PM


QUESTION POSTED AT 22/02/2020 - 03:17 PM

Which of the following is required for dark reactions to take place? a. light b. oxygen c. atp d. water please select the best answer from the choices provided a b c d

Answer:

c. atp

Explanation:

Photosynthesis occurs in autotrophs such as green plants. It completed in two phases, light reactions and dark reactions. Light reactions are the light- dependent and dark reactions are the light-independent stage. During light reactions, green plants produce ATP and NADPH using solar energy.  During dark reactions products of light reactions such as ATP and NADPH are used  to fix carbon dioxide into sugar molecule. The dark reactions occur in the stroma of a chloroplast.

ANSWERED AT 22/02/2020 - 01:13 PM


QUESTION POSTED AT 22/02/2020 - 01:13 PM

7. In fruit flies, the gene for wing shape has an unusual allele called ‘curly’ (designated ‘Cy’). The normal (wild type) allele is designated ‘cy.’ A fly homozygous for cy (cy cy) has normal, straight wings. The heterozygote (Cy cy) has wings which curl up on the ends (and, incidentally, can’t really fly). The homozygote for the Cy allele (Cy Cy) never hatches out of the egg. In other words, this allele is lethal in the homozygous condition. If two curly winged flies are mated, and the female lays 100 eggs, predict the following, showingappropriate work:a. How many eggs will produce living offspring?b. How many straight winged flies do you expect among the living offspring?c. What percentage of the living offspring do you expect to be curly winged like the parents?

A) The answer is 75
b) The answer is 25.
c) The answer is 66%

The genotype of a curly winged fly is Cycy. So the cross between two curly winged flies would look like:
Parents:          Cycy         x         Cycy
Offspring:    CyCy      Cycy   Cycy       cycy

So, 1 of 4 (25%) will be dominant homozygotes (CyCy) which is lethal, 2 of 4 (50%) will be with curly wings (Cycy), and 1 of 4 (25%) will be recessive homozygotes (cycy) with normal wings. 

a) How many eggs will produce living offspring?
Of total 4 combinations, only one of them is lethal (CyCy), thus, 3 of 4 combinations (2 Cycy and 1 cycy) will hatch out. Therefore, 75% of the eggs will survive. If there are 100 eggs, 75% is 75 eggs:
100 eggs : 100% = x : 75%
x = 100 eggs * 75% : 100%
x = 75 eggs

b) 
How many straight winged flies do you expect among the living offspring?
Of the total 100 eggs, 75 eggs will survive. According to the crossing square, 3 combinations will survive - 
2 Cycy and 1 cycy. Among those living offspring 1 is with straight wings. So, it is 1 of 3 or ≈ 33%. Since we have 75 eggs as 100% of living offspring, 33% is 25:
75 eggs : 100% = x : 33%
x = 75 eggs * 33% : 100%
 25 eggs

c) 
What percentage of the living offspring do you expect to be curly winged like the parents?
We have already calculated that 75 eggs will survive. Among the living offspring (3 combinations), 2 of them are with curly wings. So, the percentage is 2 of 3 or 2/3 or 66%

ANSWERED AT 21/02/2020 - 06:37 PM


QUESTION POSTED AT 21/02/2020 - 06:37 PM

Convert the volume of CO2 you measured in the glucose reaction to moles of CO2 using the Ideal Gas Law to solve for n. Assume P is 1 atm. n = PV/RT where P is the atmospheric pressure in the lab, V is the volume in liters of CO2, n is the number of moles of CO2, R is the gas constant 0.082 L-atm/mole-Kelvin, and T is the temperature in Kelvin. Convert the gas volume to L by dividing the volume in mL by 1000.

The assumption in this problem is that the gas, CO2, is ideal and that the ideal gas law is applicable such that,
                                     n = PV/RT
We simply substitute the given values to the equation above,
                                 n = (1 atm)(V) / (0.082 Latm/mol.K)(T)
                                           n = 12.20 V/T

ANSWERED AT 21/02/2020 - 12:04 PM


QUESTION POSTED AT 21/02/2020 - 12:04 PM

In photosynthesis, chlorophyll functions in changing A) glucose molecules to starch B) water and carbon dioxide to sugar C) light energy to chemical D) hydrogen bonds to water

C) light energy to chemical

The chlorophyll traps the light, then converts it and uses it to chemical energy.

The chemical energy is used in the grana and lamella of the chloroplasts to change water and carbon dioxide into glucose and oxygen.

ANSWERED AT 21/02/2020 - 10:31 AM


QUESTION POSTED AT 21/02/2020 - 10:31 AM

Substance that accelerates any chemicl reaction but is not consumed in the action

The answer is enzyme.

ANSWERED AT 20/02/2020 - 10:52 PM


QUESTION POSTED AT 20/02/2020 - 10:52 PM

Biogeochemical cycles recycle water and natural elements throughout the biosphere to ensure that organisms do not run out of these substances. Thiobacillus denitrificans is a specialized species of bacteria that obtains its energy from carbon dioxide and inorganic compounds such as nitrogen in its environment. It is used in bioremediation of groundwater that contains excess nitrate. How does Thiobacillus denitrificans help bioremediate groundwater?

Thiobacillus denitrificans is a chemolithoautotrophic bacteria which can obtain energy from the oxidation of inorganic compounds like nitrogen, iron or sulphur in their environment. It is an autotrophic denitrifying bacteria that is used in the bioremediation of contaminated groundwater. The process of bioremediation is carried out by the process of denitrification.

Nitrate contamination of groundwater is of high-priority concern. In the process of denitrification by Thiobacillus denitrificans, pyrite acts as the electron donor. Other sulphur minerals also act as electron donors in the process of denitrification and help in bioremediation of the contaminated ground water. The bacteria has also been engineered for nitrate removal in water treatment systems also.

ANSWERED AT 20/02/2020 - 10:31 PM


QUESTION POSTED AT 20/02/2020 - 10:31 PM

For each phase,describe at least one way mistakes during the cell cycle could result in problems

Ans.

Cell cycle includes a series of events, which leads to DNA duplication, followed by formation of new cells from a parent cell. In humans and other higher organisms, cell cycle consists of four phases, G1 (gap 1), S phase (synthesis phase), G2 phase and M phase (either mitotic or meiotic phase), in which mistakes can occur.

During G1 phase, cell prepares itself to divide and makes proteins, required for DNA synthesis during S phase. Errors occur when cell cannot make sufficient proteins and other necessary raw materials.

During S phase, DNA replication takes place to gets divided into daughter cells. Errors during S phase includes mutations and loss of DNA integrity.

During G2 phase, cell gets prepared for mitotic or meiotic division. Errors that occurred during S phase are repaired during G2 phase. Mistakes in repairing those errors result in problems as they will pass to the new daughter cells through M phase.  

During M phase, separation of duplicated chromosomes into daughter cells occurs. Mistakes that can lead to errors during this phase include chromosomal abnormalities, such as polyploidy or enuploidy.

ANSWERED AT 20/02/2020 - 10:09 PM


QUESTION POSTED AT 20/02/2020 - 10:09 PM

Each member of a class sampled a piece of PTC testing paper. Thirty people sampled the chemical. Twenty persons were tasters. How many had homozygous genes? 10-30 10 10-20 0-10

Assuming that the trait of being able to taste the sample is a dominant trait, then the tasters have at least one of that dominant trait and the people who were not tasters had the homozygous genes for the recessive trait. Therefore, the answer is
10 - 30

ANSWERED AT 20/02/2020 - 01:31 PM


QUESTION POSTED AT 20/02/2020 - 01:31 PM

In a bean plant, which reaction will release the greatest amount of energy? a) aerobic respiration of a glucose molecule b) anaerobic respiration of a glucose molecule c) synthesis of a chlorophyll molecule d) hydrolysis of a cellulose molecule

Answer:

A

Explanation:

Aerobic respiration uses molecular oxygen and releases 36 ATP from one glucose molecule.

ANSWERED AT 18/02/2020 - 11:44 PM


QUESTION POSTED AT 18/02/2020 - 11:44 PM

The chemical process for respiration

Process of cellular respiration in Animal cells
C6H12o6+6O2--->6Co2+energy(ATP)
---------------------------------------
Hope this helps

ANSWERED AT 18/02/2020 - 02:44 PM


QUESTION POSTED AT 18/02/2020 - 02:44 PM

A green plant absorbs a toxic substance that completely blocks the production of ATP. How would this most likely affect the dark reactions? A - The dark reactions would stop happening. B - The dark reactions would produce more NADPH C - The dark reactions would continue to produce oxygen D - The dark reactions would produce more carbon dioxide

Answer:

The most appropriate answer would be  A - The dark reactions would stop happening.

Light-independent or dark reaction or Calvin cycle is a part of photosynthesis in which products of light-dependent reaction (ATP and NADPH) are used to fix carbon from carbon dioxide into glucose.

It takes around 9 molecules of ATP and 6 molecules of NADPH in order to produce 1 molecule of glucose.

So, if ATP production would be stopped in a plant then dark reaction would also stop happening.

ANSWERED AT 18/02/2020 - 02:33 PM


QUESTION POSTED AT 18/02/2020 - 02:33 PM

During reduction, 3-PGA reacts with ATP and NADPH. What does ATP contribute to the reaction? carbon hydrogen ions electrons phosphate group

Answer:

The correct answer would be electrons.

It is the second step of Calvin cycle that is, reduction.

During this process electrons from ATP and NADPH are transferred to 3-phosphoglyceric acid (3-PGA). It gets reduced to form glyceraldehyde-3-phosphate (G3P).

The overall reaction is represented below.

ANSWERED AT 18/02/2020 - 02:01 PM


QUESTION POSTED AT 18/02/2020 - 02:01 PM

My daughter needs help with science can someone help her? Which of the following is an example of a trend? the gradual warming of earths atmosphere over time the cyclic rising and falling of the tides. the phases of the moon the random assortment of coins in a jar. the fact that the sun rises and sets at different times during the day depending on the time of year is an example of a data trend true false predictable amounts of rainfall in each of the 4 seasons is an example of a pttern true false a trend exists when data shows consistent reqular repetitive form true false the amount of pollution in the nearby pond and the number of airplanes that fly over the pond have a non related relationship what will happen to the number of airplanes that fly over the pond as the amount of pollution increases?? increase decrease stay the same or responds randomly increase then decrease in a reqular pattern as the number of rabbits in a community goes up the number of foxes in the same community goes up this is an example of what type of realtionships? direct indirect cyclic non related the leaves of a tree turn a deeper shade of red each fall depending on the amount of certain chemicals in that tree the greater the amount of there chemicals present in the tree the more red the leaves will turn what kind of realtionship do the shade of red and the chemicals in the tree have?? non related cyclic indirect direct

#1) Which of the following is an example of a trend?

Answer: Out of all the options that are available the one that represents an example of a trend in science is the gradual warming of earth's atmosphere over time. The reason being that a trends is the most results that are presented going towards one direction opposed to another.

#2) The fact that the sun rises and sets at different times during the day depending on the time of year is an example of a data trend.

Answer: The statement presented above is false. The best way to represent a data trend is to look at the chart and look at the data points and see how they connect. The best question to use when identifying a trends is Why is it happening. A trend is often found when data consistently increases or decreases in response to a variable.

#3) Predictable amounts of rainfall in each of the 4 seasons is an example of a pattern.

Answer: The statement shown above is absolutely true. Because as stated in the statement it is predictable.

#4) A trend exists when data shows consistent regular repetitive form.

Answer: This statement is False. As previously explained a trend is when data consistently increases or decreases in response to a variable. A pattern is when data shows consistent, regular, and repetitive form.

#5) What will happen to the number of airplanes that fly over the pond as the amount of pollution increases?

Answer: Since the amount of pollution in the pond and the number of planes that fly by are not related the number of airplanes that fly over the pond will stay the same or will respond randomly.

#6) This is an example of what type of relationships?

Answer: According to the scenario that is presented above this would be a direct type of relationship since the number of rabbits in a community goes up the number of foxes in the same community also goes up.

#7) What kind of relationship do the shade of red and the chemicals in the tree have?

Answer:
This case would also be a direct type of relationship, because as the chemicals in the tree increases, the leaves of a tree turn a deeper shade of red.

I hope it helps, Regards.

ANSWERED AT 18/02/2020 - 01:41 PM


QUESTION POSTED AT 18/02/2020 - 01:41 PM

What is the name for the cycles resulting from changes in Earth's movements and that may cause ice ages? A mammalian cycles B glacier cycles C Milankovitch cycles D Quaternary cycles

The correct answer is Milankovitch cycle.

The episodic nature of the earth's glacial cycle and interglacial cycle within the present ice age is only caused due to the cyclic changes in earth's movement around the sun. This movement of earth is called Milankovitch cycle. This cycle basically affects the season and location of solar energy around the earth. This movement of earth on its orbit around the sun is responsible for the ice ages.



ANSWERED AT 18/02/2020 - 01:21 PM


QUESTION POSTED AT 18/02/2020 - 01:21 PM

N which phase of cell cycle does synthesis of DNA take place? A) C phase B) S phase C) M phase

It is S phase (synthesis phase).

ANSWERED AT 18/02/2020 - 01:20 PM


QUESTION POSTED AT 18/02/2020 - 01:20 PM

A protein that regulates the timing of the cell cycle in eukaryotic cells is

Cyclin

in eukaryotic cells the timing of the cell cycle is regulated by cyclic-dependent
kinase or CDKs

ANSWERED AT 18/02/2020 - 12:15 PM


QUESTION POSTED AT 18/02/2020 - 12:15 PM