Which events take place in the light-dependent reactions of photosynthesis? A)Light energy is converted sugars; sugars are broken down for energy. B)Light energy is captured by plants; light energy is used to make sugar. C)Light energy is converted to chemical energy; chemical energy is used to make sugar. D)Light energy is captured by plants; light energy is converted to chemical energy.

QUESTION POSTED AT 22/01/2020 - 01:30 AM

Answered by admin AT 22/01/2020 - 01:30 AM

C)Light energy is converted to chemical energy; chemical energy is used to make sugar.
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Related questions

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

What's it called when matter is broken down into smaller and smaller pieces and you can't break it down anymore? A mineral A cell A virus An atom

I believe your answer would be an atom. 
Classical Greek philosophers, notably a man named Democritus, who lived in Greece in the 5th century was interested about the world around us. He thought up a very simple situation: If you cut something in half (like a log), the two pieces left can cut into even smaller pieces, which can cut again, and so on down to splinters. Yet, even a splinter could be cut in half. He questioned, "Whats the smallest that something can be cut?" He answer was that, at some very, very small size, you would reach a piece of the object that was 'atomos', Greek for uncuttable. 
If you had a block of iron and let's say you kept cutting it into pieces, you would, in theory, reach an extremely small piece which could absolutely not be broken down-- it was the basic building block of iron. This was, and is, a powerful idea that gives reason for all sorts of things related to chemistry and the world we live in-- like how our bodies digest food (since everything is made up of just a limited number of types of atoms (the elements), we can ingest food in one form, break the food down into small groups of atoms, and put the atoms back together as parts of our growing bodies). Modern chemistry is formed on atomic theory. Atoms are almost unbelievably small, one of your hairs is about a million atoms wide, and a speck of dust you can see might as well contain trillions of atoms. 
I got my answer and reasoning from a website called "scienceline.ucsb.edu". It goes way more into depth for your answer, you might want to check it out. I just chose bits of info that directly give reasoning as to why your answer would be An atom
Good luck on your assignment. 

ANSWERED AT 21/02/2020 - 11:24 AM


QUESTION POSTED AT 21/02/2020 - 11:24 AM

Is a carbohydrate or lipid more likely to be a good source of energy for an organism?

I'm pretty sure that the answer is a carbohydrate.

ANSWERED AT 21/02/2020 - 10:40 AM


QUESTION POSTED AT 21/02/2020 - 10:40 AM

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

How do proteins in your cells access the energy stored in atp?

The proteins access energy when ATP is turned into ADP by losing the terminal phosphate and releasing covalent bond energy.

Hope this helped!

ANSWERED AT 20/02/2020 - 11:15 PM


QUESTION POSTED AT 20/02/2020 - 11:15 PM

Name two ways plants reproduce

Plants reproduce through either sexual or asexual means. Sexual reproduction involves pollination helped by wind or insects. Asexual reproduction involves tubers, bulbs and runners known as rhizomes and stolons as well as cuttings taken by humans for commercial and home growing.

ANSWERED AT 20/02/2020 - 10:56 PM


QUESTION POSTED AT 20/02/2020 - 10:56 PM

Explain why people are searching ways to use biofuels made from plants to power cars

Biofuels have been around as long as cars have. At the start of the 20th century, Henry Ford planned to fuel his Model Ts with ethanol, and early diesel engines were shown to run on peanut oil.

But discoveries of huge petroleum deposits kept gasoline and diesel cheap for decades, and biofuels were largely forgotten. However, with the recent rise in oil prices, along with growing concern about global warming caused by carbon dioxide emissions, biofuels have been regaining popularity.

Gasoline and diesel are actually ancient biofuels. But they are known as fossil fuels because they are made from decomposed plants and animals that have been buried in the ground for millions of years. Biofuels are similar, except that they're made from plants grown today.

ANSWERED AT 20/02/2020 - 10:56 PM


QUESTION POSTED AT 20/02/2020 - 10:56 PM

Lable all the parts of a of a plant cell and what it does

Nucleus- Contains genetic material which controls the activities of the cell.
Cytoplasm- Most chemical processes take place here, controlled by enzymes.
Cell membrane- Controls the movement of substances into and out of the cell.
Mitochondria- Most energy is released by respiration here.
Ribosomes- Protein synthesis happens here.
Cell wall- Strengthens the cell.
Chloroplasts- Contain chlorophyll, which absorbs light energy for photosynthesis.
Permanent vacuole- Filled with cell sap to help keep the cell enlarged and swollen with water.

ANSWERED AT 20/02/2020 - 10:54 PM


QUESTION POSTED AT 20/02/2020 - 10:54 PM

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

How many different allele combinations would be found in the gametes produced by a pea plant whose genotype was RrYY? (1 point)

4 different types of allele combination would be possible
RY,
ry,
Ry,
rY

ANSWERED AT 20/02/2020 - 10:30 PM


QUESTION POSTED AT 20/02/2020 - 10:30 PM

What would happen to an ecosystem if an energy level disappeared? This is meaning in a pyramid.

This has happened before in Yellow Stone National Park in CA. Removing a species form the Pyramid causes the ecosystem to collapse, as species become over hunted and others are starved. One type of organism could become overpopulated, therefor lack of natural variation.  

ANSWERED AT 20/02/2020 - 09:59 PM


QUESTION POSTED AT 20/02/2020 - 09:59 PM

Why are mushrooms important to the food chain? A. They recycle nutrients into the ecosystem. B.They produce food energy for other living things. C.They recycle oxygen into the atmosphere. D.They consume excess herbivores in the ecosystem.

A. Mushrooms are decomposers, so they eat dead plant matter and give out nutrients. Hope this helps! :)

ANSWERED AT 20/02/2020 - 09:58 PM


QUESTION POSTED AT 20/02/2020 - 09:58 PM

1. production of needed energy lysosomes 2. production of protein Golgi apparatus 3. flat sacs that package and ship vesicles outside the cell endoplasmic reticulum 4. store foods or pigments mitochondria 5. tubes serving as transportation channels ribosomes 6. contain digestive enzymes plastids

Answer:

The correct answer will be-

1. production of needed energy- mitochondria

2.  production of protein- ribosomes

3.  flat sacs that package and ship vesicles outside the cell- Golgi apparatus

4. store foods or pigments- plastids

5. tubes serving as transportation channels- endoplasmic reticulum

6. contain digestive enzymes- Lysozymes

Explanation:

The cellular organelles perform a different function in a cell. Each organelle carries out distinct and specific functions.

1. Mitochondria- double-membrane organelle which performs the function of ATP synthesis. Since statement mentioned the production of energy, therefore, mitochondria are the correct answer.

2. Ribosomes- the organelle associated with the synthesis of proteins during the translation process. Thus, the ribosome is correct option.

3. Golgi apparatus- organelle is associated with the packaging and modification of the protein to be transported. Thus, the Golgi apparatus is the correct option.

4. Plastids- the organelle which contains pigments and provides color to the structure like green pigment in the chloroplast. Thus, plastid is the correct answer.

5. Endoplasmic reticulum- Orgenelle which are tubular in appearance and carry tmodify the proteins synthesised on the ribosomes. Thus, the endoplasmic reticulum is the correct option.

6. Lysosomes- The orgnelle which contains hydrlytic enezymes which hydrolyse every biomolecule. Thus, the lysosome is the correct answer.

ANSWERED AT 20/02/2020 - 09:39 PM


QUESTION POSTED AT 20/02/2020 - 09:39 PM

Characteristics of plant cells include which of the following? no cell wall, only plasma membrane large hypertonic vacuole no chlorophyll or chloroplasts cell plate in cell division cleavage furrow

Plant cells have a cell plate, no centrioles in cell, division presence of cell wall plus plasma membrane, and large hypertonic vacuole.

ANSWERED AT 20/02/2020 - 09:34 PM


QUESTION POSTED AT 20/02/2020 - 09:34 PM

Light takes approximately 8.3 minutes to reach the earth from the sun. If the light from another star takes about two hours to reach earth, how much farther is this star from the earth compared to the distance between the sun and earth? A) 4 times farther B) 8 times farther C) 12 times farther Eliminate D) 15 times farther

Answer:

D) 15 times farther

Explanation:

Two hours = 120 minutes. 120 minutes divided by 8.3 minutes is a little less than 15. Therefore, this star is 15 times farther from the earth than the sun.

ANSWERED AT 20/02/2020 - 09:30 PM


QUESTION POSTED AT 20/02/2020 - 09:30 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

If energy efficiency is improved, the cost of energy would decrease and _____. A)more coal would be available B) less electricity would be used C) homes would cost significantly less D) Energy Star appliances would no longer be necessary

The correct answer is option B

The energy efficiency can be defined as the output of energy to the input of energy.

As the efficiency of energy is increasing then the consumption of electricity will be less because previously the energy was used more due to loss of energy.

But now the energy will not be lost in the form of heat or friction and the cost of energy will be less.

ANSWERED AT 20/02/2020 - 01:24 PM


QUESTION POSTED AT 20/02/2020 - 01:24 PM

What is a result of light from distant objects falling short of the retina, causing distant objects to appear blurry.

Myopia, or nearsightedness, is the ability to see close objects clearly, but distant objects appear blurry. Myopia is a defect of the eye in which the focusing system, the cornea, and lens, is optically too powerful, or the eyeball is too long (axial myopia). As a result, the focal point is too near the lens, and the image is focused in front of the retina.

ANSWERED AT 20/02/2020 - 01:06 PM


QUESTION POSTED AT 20/02/2020 - 01:06 PM

Your family has planted a garden. You observe that some of the plants in the garden have teeth marks in them. What is eating the plants?

Out of pure guessing, I'd assume caterpillars, or rabbits/rodents of a sort.

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


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

Why do mutations make such a large contribution to bacterial genetic variation?

They are rare, but can significantly increase genetic diversity when reproductive rates are high

ANSWERED AT 20/02/2020 - 11:43 AM


QUESTION POSTED AT 20/02/2020 - 11:43 AM

Explain the role of vitamins in the body and why they are not a source of energy

Vitamin A helps form and maintain healthy teeth, bones, soft tissue, mucus membranes, and skin. Vitamin B6 is also called pyridoxine. Vitamin B6 helps form red blood cells and maintain brain function. This vitamin also plays an important role in the proteins that are part of many chemical reactions in the body.

ANSWERED AT 20/02/2020 - 10:39 AM


QUESTION POSTED AT 20/02/2020 - 10:39 AM

Describe the difference between energy flow and matter flow in ecosystems.

Flow of energy is how energy is transferred across the ecosystem. Flow of matter is like flow of water, nitrogen oxygen, phosphorus, carbon dioxide, etc.

ANSWERED AT 19/02/2020 - 02:59 PM


QUESTION POSTED AT 19/02/2020 - 02:59 PM

Earth receives thermal energy from the sun via radiation. Which of the following is a result of this energy transfer?A. There is matter to produce carbon compounds on Earth.B. Earth is a closed system in terms of energy.C. There is energy to support life on earth.D. Energy is created but not destroyed in the earth system

Answer: C. There is energy to support life on earth.

The earth receives thermal energy from the sun via. radiation. This energy is captured by chlorophyll pigments of plants and other organisms to conduct photosynthesis. The sunlight energy is necessary for synthesis of food in the form of glucose. The glucose is converted into chemical form of energy as ATP which is required for respiration process in plants. Photosynthesis and respiration both are necessary processes to sustain life of plants, which further support life of other living organisms. Therefore, energy transfer support life on earth.  

ANSWERED AT 19/02/2020 - 10:14 AM


QUESTION POSTED AT 19/02/2020 - 10:14 AM