Why do we calculate calories per gram instead of just calories?

Answers

Answer 1

Because an amount of the said substance emits a specific amount of heat.

In food usually calories are measured per 100 grams.

For biomolecules calories are measured per 1g (e.g. 1g glucose=4.1kcal)

Answer 2
We calculate calories per gram instead because the amout of a certain substance emits a limited amount of heat.✅

Related Questions

According to the graph, what condition is best for enzyme activity?
O A. A temperature above 30°C
B. A temperature of 0°C
C. A temperature of 25°C
D. A temperature below 20°C

Answers

Answer: C. a temperature of 25°C

Explanation: the peak of enzyme activity on the graph (or the highest point) shows to be 25° C

According to the graph, the condition that is best for enzyme activity is a temperature of 25 °C. The correct option is C.

What is enzyme activity?

The enzyme is a protein that works in many functions or reactions and increases its speed.

The graph is at its highest between 20 and 30, so its activity will be highest at this phase.

Thus, the correct option is C. A temperature of 25 °C.

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What hypothesis have the Grants been testing?​

Answers

the natural selection shaping the beaks of different bird populations

Answer:

Various finches descended from one common ancestor.

Explanation:

Hope this helps

Which weathering process is mechanical?
A. Solution
B. Carbonation
C. Ice wedging
D. Hydration

Answers

Ice wedging...............

Replicate the following DNA strand: TCAGGTAAC

Answers

Answer:

AGTCCATTG

Explanation:

Answer:

AGTCCATTG

Explanation:

Apples (A) Goes with Trees (T)

Cars (C) Goes with Garages (G)

Hope this helped.

what do you understanding about biology

Answers

Answer:

The study of all life or living matter is biology.

Answer:

Biology is the study of life. In general, biologists study the structure, function, growth, origin, evolution and distribution of living organisms. Biology is important because it helps us understand how living things work and how they function and interact on multiple levels.

Explanation:

I hope this helps!

Can I have brainliest?

Also can you please thank me? :)

Type in the word healthy if you believe the following observations indicate a healthy aquatic ecosystem or type in the word unhealthy if you believe the following observations indicates an unhealthy aquatic ecosystem.


A hydroelectric dam has heated a nearby body of water.

Answers

Answer:

Not Healthy

Explanation:

Because the Fact that you said "aquatic ecosystem" changes the statement. Even though that this dam is hydroelectric, It doesn't benefit Aquatic life very much. Garbage does not come from electricity. No matter how it is made. You may get toxic gases, But not garbage. The warm water can kill the fish who may need a stable condition if no mutations occur. It can attract new praetors or fungi also.

the answer to your question is not healthy

what is the correct squence for plant cell mitosis

Answers

Answer:Mitosis consists of four basic phases: prophase, metaphase, anaphase, and telophase. These phases occur in this strict sequential order, and cytokinesis - the process of dividing the cell contents to make two new cells - starts in anaphase or telophase. The mitotic phase is a relatively short period of the cell cycle.

Explanation:

Answer:

prophase, metaphase, anaphase, and telophase.

Explanation:

Mitosis consists of four basic phases: prophase, metaphase, anaphase, and telophase. These phases occur in this strict sequential order, and cytokinesis the process of dividing the cell contents to make two new cells - starts in anaphase or telophase. The mitotic phase is a relatively short period of the cell cycle.

The diagram above illustrates which of the following processes?
A// Base pair substitution
B// Duplication
C// Posttranscriptional processing
D// Deletion
E// Crossing-over

Answers

Option A Base pair substitution

The diagram represented here illustrates the process of crossing over.

What do you mean by crossing over?

Crossing over is the exchange of genetic material between the non-sister chromatids of a homologous chromosome.

There are two chromosomes in the diagram i.e. light and dark-colored. In the third step, there is a process of crossing over occurring between the non-sister chromatids to produce a genetic variation, which results in a new allelic combination in the daughter cells.

Therefore, the diagram illustrates the process of crossing over.

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Consider an ideal gas with an absolute temperature of T1. To what absolute temperature would the gas need to be heated to double its pressure? Express the answer in terms of T1.

Answers

Answer: To double the pressure, the temperature has to be 2*t1 K

Explanation: Gay-Lussacs law states: for a constant mass of gas held at constant volume, Pressure is proportional to absolute temperature (degrees K)

p1/t1 = p2/t2

we have p1/t1 = 2*p1/t2—> t2 = 2*p1*t1/p1 —> 2*t1

Hello, I would love to know why do humans cry.

Answers

Answer:

because women(;

Explanation:

Answer:

The answer is at the bottom!! ;)

Explanation:

Humans have to cry because when you cry your body releases endorphins and oxytocin. These natural chemical messengers help relieve emotional distress along with physical pain. In other words, crying is a self-soothing behavior.

Hope this answers your question!! ;)

HELP HELP HELP HELP

FOR SCIENCE CLASS!!!!!!!!!

PLEASE!!!

Answers

Answer:

It lost mass due to plasmolysis in osmosis, with having a higher water potential than the solution.

Explanation:

How would the DNA change if a base is not matched correctly

Answers

Answer:

Things like cancer, and other genetic mutations leading to disaease.

Explanation:

Answer:

It would do something amazing

Explanation:

PLSS HELP‼️‼️

Which statement is part of the process of natural selection?

A. There is little variation among members of a population.

B. Organisms produce fewer offspring than can survive.

C. Traits do not pass from one generation to the next.

D. Individuals with useful traits survive and have offspring.​

Answers

Answer:

I believe the answer is D.

Explanation:

Natural selection is used for the survival of a species.

D. Individuals with useful traits survive and have offspring this is because the individuals with useful traits are adapted to their environment and can pass their genes down to their offspring.

This type of molecule is the MOST common energy source for all cells and enters the cell by facilitated diffusion. The
molecule is

Answers

Answer:

Glucose

Explanation:

The answer is glucose. Ready energy for any type of cell is glucose. Other molecules may be used for energy, but they are broken down before being used as an energy source. DNA is not used for energy; proteins are used only when an organism is in starvation mode.

what is the chemical equation of photosythesis ( Write in chemical equation and word form.)

Answers

Explanation:

6CO2 + 6H2O => C6H12O6 + 6O2

During photosynthesis, carbon dioxide gas and water reacts in the presence of sunlight to produce glucose and oxygen gas.

Explanation:

[tex]\tt{6CO_2 + 12H_2 O→C_6 H_{12 }O_6+ 6O_2+ 6H_2 O}[/tex]

Here, six molecules of carbon dioxide (CO2) combine with 12 molecules of water (H2O) using light energy. The end result is the formation of a single carbohydrate molecule (C6H12O6, or glucose) along with six molecules each of breathable oxygen and water.

Why is it important that experiments be replicable?

Answers

Answer:

because it is

Explanation:

just write that

Answer:

Perhaps so that other scientists in the future will be able to see if there were any flaws in the result because of the experiment. We can also use that experiments when we have different factors in the same experiment to see how the result might differ. In the future something might change or an advance in technology and repeating an experiment can help us learn from our answer before.

Explanation:

I'm not sure if my answer is wrong but it's just a thought and there's not much to put in my explanation box.

What is surface water?

Answers

Answer: noun;

1. water that collects on the surface of the ground 2. the top layer of the body of water

Explanation:

In the future, regular travel between the planets in our solar system will become possible.
Suppose spacecraft can only travel along the following routes: Earth - Mercury, Pluto - Venus,
Earth - Pluto, Pluto - Mercury, Mercury - Venus, Uranus - Neptune, Neptune - Saturn,
Saturn - Jupiter, Jupiter - Mars, and Mars - Uranus. Can a traveler get from Earth to Mars?

Answers

Suppose as if we were in a terminal dimension which means number 3

Name the two basic phases of cell cycle and difference between the two.....answer me in 10 seconds then I'll mark his or her answer as brainlist It's my promise but the answer must be not copied from internet & also, difference must be of 3 to 5 points.....​

Answers

Answer:

The cell cycle can be separated into two major phases that alternate with each other: interphase, during which the cell grows, prepares for mitosis and duplicates its DNA, and the mitotic (M) phase, in which the cell divides into two genetically identical daughter cells (see figure below).

Interphase and mitotic

Which compounds present in insects are composed of the amino acids that provide the Venus flytrap and sundew with much of their nitrogen?
Protein
Lipid
Carbohydrate
Sugar

Answers

I believe it is Protein

What are the 5 steps of the Lytic Cycle?

Answers

Answer:

These stages include attachment, penetration, uncoating, biosynthesis, maturation, and release.

Explanation:

Bacteriophages have a lytic or lysogenic cycle. The lytic cycle leads to the death of the host, whereas the lysogenic cycle leads to integration of phage into the host genome.

Answer:

These stages include attachment, penetration, uncoating, biosynthesis, maturation, and release.

Explanation:

Need help ASAP, TY plz answer if you know it

Answers

Answer:

root hairs → 1. absorbs water and nutrients from the soil

vascular tissue → 2. consists of xylem and phloem

chloroplast → 3. the site of photosynthesis inside the cell

stem → 4. holds the leaves up high into the sunlight

leaf → 5. acts like an umbrella to absorb light  

terminal bud → 6. the growing part of the stem

taproot → 7. roots that reach deep into the ground

Explanation:

I have been able to match each term to its correct description.

From the above, we will discover that these are parts of a plant. These parts of the plant enable the plant to carry out photosynthesis and to exist.

The root hairs of the plant absorbs water and nutrients from the soil. When such are absorbed, the vascular tissues help to transport them.

The vascular tissue consists of the xylem and phloem. They  transport fluid and nutrients inside the plant. The vascular tissue is associated with two meristems which are the vascular cambium and the cork cambium. It is at the chloroplast that photosynthesis occur; where light energy is converted to chemical energy.

The stem holds the leaves firmly in order to project it to the sunlight. The leaf absorb sunlight which is needed for photosynthesis. The terminal bud is actually the part of the stem that is growing out. Taproot reach deep down the ground in search of water for the plant.

Describe geologic processes. How have they changed the surface of the earth ? (give examples)

Answers

Wind water and ice roads and shape the land. Volcanic activity and earthquakes alter the landscape in a dramatic and often violent manner. And on a much longer time scale, the movement of earths plates slowly reconfigures oceans and continents. Each one of these processes plays a role in the Arctic and Antarctica.

Which part Of a DNA molecule is responsible for the direction coding of specific traits of an organism

Answers

nucleotides - they are molecules present in cells and are formed by nitrogenous bases

What conditions make for a violent volcanic eruption? A. Magma with low gas content OB. Magma with low viscosity O C. Magma with high silica content OD. Magma that can flow easily​

Answers

Answer:

A and B

Explanation:

the main factors that result in violent volcanic eruption is low viscosity and gas content

Why is it important to cooperate with other countries on environmental issues?

a.Environmental issues are not always localized.
b.Other countries have no environmental issues.
c.Other countries have more environmental issues.
d.None of the above

Answers

Answer:

It's A.Environmental issues are not always localized

Explanation: hope it helps ^w^

Environmental issues are not always localized. Therefore, option (A) is correct.

What are environmental issues?

Many environmental issues, such as climate change, deforestation, and ocean pollution, are global in nature and can have far-reaching impacts beyond the borders of any one country.

Therefore, it is important for countries to cooperate and work together to address these issues, as the actions of one country can have consequences for others. Additionally, many countries share ecosystems and natural resources, such as rivers, oceans, and wildlife, that require collaborative efforts to protect and manage sustainably.

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HELP !!
Which process that is necessary for cell
reproduction occurs during cell growth?
A: DNA replication
B: RNA replication
C: Dissolution of the cell membrane
D: The nucleus falls apart

Answers

Answer:

A: DNA replication

A.....................

Which macromolecule makes up the main structure of the cell membrane?

Answers

Answer:

The principal components of the plasma membrane are lipids (phospholipids and cholesterol), proteins, and carbohydrate groups that are attached to some of the lipids and proteins.

The main structure of plasma membrane is made up of lipids.

What is a cell membrane?A membrane is what separates a cell's internal environment from its external environment.It has selective permeability.It is made up of a bilayer of lipids.It contains embedded proteins that may be central or peripheral.Can all molecules cross the plasma membrane?No, all molecules cannot pass through plasma membrane.The compounds that can cross it are small nonpolar molecules or small, charged polar molecules.There are special proteins like carriers, channels etc., that aid in the transportation.What are a few of the plasma membrane's functions?

Plasma membrane prevents undesirable and dangerous substances from entering the cell.

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what organic molecules are found in neurons

Answers

Explanation:

Like all animal cells, the cell body of every neuron is enclosed by a plasma membrane, a bilayer of lipid molecules with many types of protein structures

what happens when the heart doesn't pump blood effectively to the body? How would a person feel?

Answers

Answer:

Low-output symptoms, which are caused by the inability of the heart to generate enough cardiac output, leading to reduced blood flow to the brain and other vital organs. These symptoms may include lightheadedness, fatigue, and low urine output.

Answer:

they would first feel sick and then after  24 hours (i d k actual time period)

they would die

Explanation:

i dont know for shure but this is my asumtion of what would happen

hope this helps

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The Haitian Revolution was most influenced by the Enlightenment principles reflected in the passage and by which of the following Enlightenment thinkers?Thomas HobbesThomas JeffersonBaron de MontesquieuJean-Jacques Rousseau Can someone substitute this? Please and thank you I NEED HELP PLZ I WILL GIVE THANKS AND BRAINLIST Soalan PeribahasaSekiranya kita tidak mempunyai keyakinan diri dan tidak berani membuat keputusan dan hanyamenerima keputusan orang lain maka kita akan dianggap seperti I NEEDS THE HELP PLEASE Compare and contrast a gas and a solid.19 points ??? ASAP PLS HELP!!! I WILL MARK THE FIRST GOOD ANSWER BRAINLIEST!!! The Freedmens Bureau was set up to __________.a.establish order in the Southb.assist African Americans after the Civil Warc.register African American votersd.organize state conventions WILL GIVE BRAINLIEST, EXTRA POINTS, STARS, AND THANK YOU!!FOR THE RIGHT ANSWER!!!! PLEASE EXPLAIN YOUR ANSWER TO COMPLETE IT BECAUSE... (Absurd answers will be reported)Which of the following is an example of a superimposed boundary?A. The geometric boundary between the United States and CanadaB. The border of the European UnionC. The Pyrenees Mountains between FranceD. The Great Wall of China To convey superiority.ms + adjective, adverb, noun + quetan + adjective, adverb + comodefinite article + ms, menos + adjectivemenos + adjective, adverb, noun + que What was Tom Watsons role in the establishment of rural free delivery? Do you think that pilots should be considered scientists? Explain your response. HELPPPPPPPPWhat is the amplitude?A. the distance from the center of the wave to the crest or the trough.B. The distance between the two crestsC. The highest point in the waveD. The lowest point in the wave (7x + 34)(10x - 23) Who won the Battle of Pea Ridge? Why is the cell theory important ? Which of the following remains constant during the motion of a projectile fired from a planet?A. MomentumB. Kinetic energyC. Horizontal component of velocityD. Vertical component of velocity What is Lady Macbeths role in Macbeth's decision to murder the king?A. She calls Macbeth silly for believing the witches prophecy and tells him to be happy with what he has.B. She talks him into killing the king by accusing Macbeth of being weak and cowardly.C. She tries to talk Macbeth out of killing the king by explaining that she is a mother and is against killing.D. She tells Macbeth that the king is old and dying and it would be right to put him out of his misery. cultural connections between andra pradesh and tamil nadu what is equivalent to 2/3 divided by 5/6 i hate school what is the answer