Question 12 Multiple Choice Worth 5 points)
(04.02 LC)
Which of the following is true about the products formed during photosynthesis?
They have the same mass as the mass of reactants.
They are the same set of compounds as the reactants.
They have more mass than the mass of reactants.
They are chemically the same as the reactants.

Answers

Answer 1
From the principle of mass conservation in a chemical process, the total mass of the reactants should be the same as the total mass of the products. So, the best answer here would be the first statement.

This is entirely theoretical as photosynthesis is neither a completely efficient process nor does it take place in an isolated system.

The second statement is incorrect since the products of photosynthesis are glucose and oxygen gas, which are completely different compounds from the water and carbon dioxide reactants.

The third statement is incorrect not only because it contradicts the principle of mass conservation, but because—if anything—mass is lost in the course of an inefficient chemical process like photosynthesis in the form of energy wasted as heat.

The last statement is incorrect for the same reason as the second statement is incorrect; the products are completely different substances from the reactants. For example, one of the products—glucose—can undergo combustion. One of the reactants, water, cannot combust.

Related Questions

PLEASE HELP!!!!!!!!!!!!!!!!!

Answers

Answer: research it? i dont know

Explanation:

what is the difference between the substrate and product?​

Answers

Answer:

The key difference between substrate and product is that substrate is the staring material of a chemical reaction whereas product is the compound obtained after the completion of the reaction. The terms substrate and product are used in spontaneous reactions and in reactions upon which an enzyme acts on as a catalyst.

Explanation:

Explanation:

substrate is a chemical reaction and product is compound obtained

HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP

Answers

I think it would be A

Explain How the nitrogen cycle can be disrupted. PLEASE HELP DUE SOON!

Answers

Scientists have determined that humans are distributing the nitrogen cycle by alternating the amount of nitrogen that is stored in the biosphere

Hope this helps!

What is the waste product of the Krebs cycle and how many molecules are released?

Answers

Answer:

13 molecules are released

What is the abiotic energy source for all ecosystems? A. Sunlight B. Plants C. Animals D. Air

please helllppp​

Answers

Answer:

A. Sunlight

Explanation:

Answer:

A. Sunlight

Explanation:

It is A because sunlight is nonliving, and an energy source (producer).

Urgent!! Will give brainlist to best answer!!

The top ten most commonly eaten foods mostly include grains and other starchy plants.

True

False

Answers

Answer:

true

Explanation:

Carbohydrates can be divided into three main categories: sugar, fiber and starch.

Starches are the most commonly consumed type of carb, and an important source of energy for many people. Cereal grains and root vegetables are common sources.

A producer is also called a(n)

A. autotroph

B. heterotroph

Answers

I believe the correct answer is A. autotroph

Answer:

A. autotroph

Explanation:

Hope this helps

10. Why are most species that have ever lived on Earth extinct?

Answers

Explanation:

At least 571 species have been lost since 1750, but likely many more. The main cause of the extinctions is the destruction of natural habitats by human activities, such as cutting down forests and converting land into fields for farming.

Answer:

Some animals have gone extinct due to over hunting on them for skin, while some have died of because they weren't able to adapt to their environment because it change over time, causing them to go extinct  

Explanation:

What is the name for the sequence of a gene that determines a specific trait like brown eyes?

A.Nucleus
B. Allele
C. DNA
D. Centromere

Answers

Answer:

Allele

Explanation:

Which of these protects water that is
between the United States and Canada?
A. Endangered Species Act
B. Superfund Act
C. Convention on the Protection/Use of Transboundary
Watercourses
D. London Convention on the Prevention of Marine
Pollution

Answers

Answer:

C. Convention on the Protection/Use of Transboundary

Watercourses

Explanation:

I think the answer is C.

Ent Bookmarks
Kelly - Human Anatomy Spring 2021
If a person has hypothermia, which of the following is true?
The person was exposed to really hot temperatures.
The person has a hard time staying hydrated.
o The person is losing heat faster than the body can produce it.
The person's pancreas is not making enough insulin.

Answers

Answer:

The person is losing heat faster than the body can produce it

Explanation:

hypothermia is when the persons body is too cold, that it is having a hard time producinh enough heat

Over a long period of time, if only dark trees were available for the moths to live on, what do you think would happen to the population of light colored moths?

Answers

Answer:

The population of light moths will decrease since they won't be able to camouflage on the dark trees so predators will easily spot them.

Explanation:

Hope this helped!

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Have a great day!

Which of the following conditions is least likely to have an effect on natural selection in a species of sheep that are geographically isolated on an island?

A. available niches
B. existing predators
C. chromosome number
D. available food resources

Answers

Answer:

A. available niches

Hope it helps!

Answer:

C.

Chromosome number

Explanation:

In a human karyotype, the 46 chromosomes of the human genome are arranged into 23 pairs. Encyclopædia Britannica, Inc. An organism with any multiple diploid numbers of chromosomes is said to be polyploid.

how does independent assortem increase genetic diversy​

Answers

Answer:

Genetic diversity is increased by independent assortment (genes are inherited independently of each other) and crossing over during meiosis. During meiosis, chromosomes (which are found in pairs) swap large portions of their molecules, causing genetic material to be mixed between them.

Explanation:

what is the relationship between a protein the cell and DNA?
a. DNA is produced by protein which is produced in the cell
b. dna controls the production of protein in the cell
c. protein is composed of DNA which is produced in the cell
d. a cell is composed of DNA and protein

Answers

Answer:

Cells contain DNA that controls the production of proteins. (2) DNA is composed of proteins that carry coded information for how cells function. (3) Proteins are used to produce cells that link amino acids together into DNA. (4) Cells are linked together by proteins to make different kinds of DNA molecules.

Explanation: Hope this helps!! :)

identify the products of what process are shown in the figure below

Answers

The helicase unzipping the DNA and the DNA polymerase synthesizing the DNA.

Hope this helps!

DNA is created by the DNA polymerase and unzipped by the DNA helicase.

What is DNA?

DNA stands for deoxyribonucleic acid.

DNA is defined as a collection of molecules that are in charge of transporting and passing genetic information from parents to children.

It can also be defined as a sophisticated molecule that carries all the data required to create and maintain a creature.

There are basically two types of DNA.

Autosomal DNAMitochondrial DNA

Today, DNA serves three unique purposes: genetic, immunological, and structural, all of which depend in different ways on the sugar phosphate backbone and the bases.

Replication, information encoding, mutation/recombination, and gene expression are the four functions that DNA performs.

Thus, DNA is created by the DNA polymerase and unzipped by the DNA helicase.

To learn more about DNA, refer to the link below:

https://brainly.com/question/264225

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The movement of tectonic plates in two differs ot locations is shown below:
Location A
Location B
Which statement is most likely true?
• Subduction occurs in both locations.
Seafloor spreading occurs in both locations.
• The magnetic orientation of rocks may change in Location A and subduction occurs in Location
B.

Subduction occurs in Location A and the magnetic orientation of rocks may change in Location B.

Answers

Answer:

The magnetic orientation of rocks may change in Location A and subduction occurs in Location B

Explanation:

Organisms that eat other organisms are called __________.

Answers

Answer:

Heterotrophs Or Consumers

Answer:

heterotrophs  

Explanation:

How do you think molecules of food rearrange when they react with oxygen in the cells of your body?​

Answers

Answer:

In cellular respiration, complex molecules containing carbon react with oxygen to produce carbon dioxide and other materials. Within individual organisms, food moves through a series of chemical reactions in which it is broken down and rearranged to form new molecules to support growth or to release energy.

Explanation:

The glucose and oxygen atoms are rearranged into carbon dioxide and water molecules during aerobic respiration. Being an exothermic chemical reaction, this process releases energy as it goes along.

What is aerobic respiration?

A chemical reaction that converts carbohydrates into energy using oxygen (sugars). also known as oxidative metabolism, aerobic metabolism, and cell respiration.

During aerobic cellular respiration, glucose and oxygen combine to create ATP, which the cell can utilise.

As byproducts, carbon dioxide and water are produced. The general equation for aerobic cellular respiration is: ATP is produced when glucose and oxygen combine in cellular respiration.

During aerobic respiration, glucose and oxygen atoms are rearranged into carbon dioxide and water molecules. As it proceeds, this process releases energy since it is an exothermic chemical reaction.

Thus, molecules of food rearrange when they react with oxygen in the cells of your body.

For more details aerobic respiration, visit:

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Which conclusion can you draw from the information shown in the graph?
A. Carbon dioxide levels are currently much lower than normal.
B. Carbon dioxide levels are currently higher than they have ever
been.
C. Carbon dioxide levels in the past have been as high as they are
now.
D. Carbon dioxide levels are always about the same.

Answers

B. Carbon dioxide levels are currently higher than ever

Answer:

The answer is B. Here is proof. Plz mark brainliest

Explanation:

Two species of three-spined stickleback fish have been found together in five different lakes. The larger, bottom-dwelling species feeds on large prey close to shore. A surface-dwelling species feeds on small plankton in open water. DNA analysis shows that the two species in each lake are more closely related to each other than they are to any of the other species in the lake. Which prezygotic mechanism most likely allowed divergence of an ancestral species into these present-day species

Answers

Answer:

The answer is "Sympatric speciation due to disruptive selection"

Explanation:

Disruptive selection is a certain type of natural choice, that aggressively favors all ends of the spectrum in a moderate community. Disruptive selection is often deduced by a phyletic prepared to change to contribute to speciation. These two species happened due to various habitats associated with extreme speciation due to various confusing choices.

A gene has 2 alleles, R & B, List the possible genotypes? I also need help with questions 5, 6, 7 and 8 please help! Pls look at the picture! I will mark whoever sounds best the brain! Ty!

Answers

Answer:

5.) The possible genotypes should be: RR RB BB ( if the could for the same proteins)

6.) Frequency of R: 0.5

7.)Frequency of R: 0.5

8.)Frequency of R: 0.375

Explanation:

5.) If R and B code for the different forms of the same protein then they are only a few possible out comes

6.) First calculate the total alleles in population

allele R= 40

Allele B=40

total allele = R+B= 40+40

=80

Now to find allele R frequency is:

(Total R alleles) / (Total allele in pop)

40/80=

0.5

7.)Calculate the total alleles

Alleles from for R

RR= 10

R=10x 2= 20

Multiply the value by 2 because there are 2 R alleles present in

RB=20

R=20

Number doesn't change there is only 1 R allele

Total R=20+20

=40

Alleles For B

BB=10

B=10×2

=20

Same thing here, two B alleles together so multiple by 2

RB=20

B=20

Total B= 20+20

=40

Total alleles in pop add

40+40

=80

Frequency of R

Total of R/Total Alleles

=40/80

=0.5

8.)Repeat the same thing in 7 but use different numbers

RR=10

R=10x2

=20

RB=10

R=10

Total R= 20+10

=30

Is there any living thing that doesn't die, that can live forever?

Answers

Answer:

yes

Explanation:

Unicellular Organisms

Chandra X-ray observatory has reported that they have found a new star near our solar system. The Chandra X-ray telescope detects x-rays in space. What does the use of the x-ray telescope review about the newly found star? ( PLS EXPLAIN Y THE ANSWER IS CORRECT)

a. The star produces electromagnetic waves with shorter wavelengths than visible light.
b. The star produces electromagnetic waves with lower frequencies than visible light.
c. The star produces pictures in addition to electromagnetic waves.
d. The star produces vibrating electrons

Answers

Answer:

It’s possibly b, or a but I am definitelyonly 49% sure

Explanation:

Hope this helped you Arianna!

PLEASE HELP FAST NEED FAST =)

3) Select the reasons why global warming might still occur even if greenhouse-gas emissions drastically decrease.

Answers

Answer:

If the emission of greenhouse gases were stopped, global warming would still happen due to the gases that are already in the atmosphere and the constant deforestation.

Explanation:

Greenhouse gases are the biggest creators of global warming. This is because these gases cause holes in the ozone layer, which protects the planet from the sun's rays. These holes cause the sun's rays to reach the earth's surface with greater intensity, promoting global warming.

Trees are able to absorb these gases, decreasing their concentration in the atmosphere and preventing them from degrading the ozone layer. However, the constant deforestation has reduced the number of plants and the remaining amount on the planet cannot cope with the constant emission of these gases. In this case, even if the emissions of greenhouse gases were ended, the amount of these gases in the atmosphere would still be very large. Plants were slow to absorb all these gases, which would not prevent global warming from happening.

7.
How is the rate of transpiration affected by decreasing temperature and by decreasing light
intensity?
decreasing
temperature
decreasing
light intensity


A
slower
slower
B
slower
faster
С
faster
slower
D
faster
faster

Answers

Answer:

B

slower

faster

Explanation:

Please anyone help please please help ASAP ASAP please

Answers

Answer:

radiant to electrical

Explanation:

Why is the tower much taller than the surrounding landscape​

Answers

Answer:

Because a tower is made to look out at the surrounding area, it wouldn't be much use if it was a short tower.

Explanation:

That'll be one Brainliest

which igneous rock could physically weather to beach sand that contains the minerals pyroxene, plagioclase, feldspar, and olivine?

Answers

Answer:

gabbro

Explanation:

just took the test!

An igneous rock which could physically weather to beach sand that contains the minerals pyroxene, plagioclase, feldspar, and olivine is: Gabbro.

Weathering refers to both the chemical and physical breakdown of a rock into smaller fragments (pieces) referred to as sediments.

Generally, there are two (2) main types of weathering and these are;

1. Chemical weathering.

2. Physical weathering.

Gabbro is a coarse-grained (phaneritic), mafic intrusive type of igneous rock which physically weather to beach sand containing the following sediments or minerals:

Pyroxene.Plagioclase.Feldspar.Olivine.

Read more: https://brainly.com/question/21975453

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