12. If energy must be added to a chemical reaction for the reaction to take place, the
reaction is
A. exergonic
C. endergonic
B. exothermic
D. endothermic

Answers

Answer 1

Answer: exergonic

Explanation:


Related Questions

Give three reasons why leaves might turn red?

Answers

Answer:

Douglas fir stops growing because it can't pull water any higher.

All tree leaves have 'thermostat' that maintains temperature.

Leaves shed new light on earlier arrival of spring.

Explanation:

What are the inputs of the digestive system?

Answers

Answer:

do u mean whats in the digestive system?

Explanation:

cause if so, its mouth, esophogus, liver stomach gallblader s+l intestine, then the rectum

The phases of the Moon are caused by the...

Answers

Answer:

Earth

Explanation:

Half of the Moon is lit by the Sun while the other half is in darkness. The phases we see result from the angle the Moon makes with the Sun as viewed from Earth.

Answer:

Because of how the sun hits. So when the sun hits it the phases of the moon show.

Explanation:

fdggdsgdsg

Where in the cell are the chromosomes lined up during metaphase?

Bottom of the cell?
Top of the cell?
At the ends of the cell?
In the middle of the cell?

Answers

Answer:

they're aligned at the centre of the mitotic spindle...(metaphase plate)

1 Which of the following best describes, in general, how organisms benefit from
enzymes?
A They speed up chemical reactions for the organisms.
B Enzymes maintain constant temperature in the organism.
C They are responsible for reproduction in organisms.
D Enzymes transfer genetic information between organisms.

Answers

Answer:

A

Explanation:

Enzymes in an organism speed up chemical reactions by lowering the activation energy (energy needed for reactants to come together and react)

Answer:

A

Explanation:                                                                                                                    The enzyme speeds up the reaction by lowering the activation energy needed for the reaction to start

Please help! i will give brainliest to the first person, but you must have the CORRECT answer!

Which of the following is an effect of organic matter on soil?
a.
improved soil structure
b.
decreased water retention
c.
increased nutrient loss
d.
all of the above

Answers

Answer:

D

Explanation:

all these things

Answer:

a. improved soil structure

Explanation:

organic matter binds soil particles into aggregates and improves the water holding capacity of soil.

N2+3h2-->2NH3

How many total reactant atoms are their?

Answers

Answer:  

There are 7 reactants atom are there.

Explanation:

1 Nitrogen atom( formula=N2) and 6 Hydrogen atoms (  3 hydrogen atoms with 2 coefficient , 3x2=6. 6+1=7. So my answer that there are 7 reactant atoms take part in this reaction

Sallwaler

5. What is produced when an acid is mixed with water?
A- oxygen ions
B- hydroxide ions
C- oxygen atoms
D- hydrogen ions

Answers

Answer:

Answer

Hydrogen ions

Explanation:

Answer:

hydrogen ion....................

What other forms of energy are powered by the sun?

Answers

Answer:

Thermal Energy, Solar Energy, Electrical

Explanation:

Solar power is energy from the sun that is converted into thermal or electrical energy. Solar energy is the cleanest and most abundant renewable energy source available, and the U.S. has some of the richest solar resources in the world.

Electrical energy can be powered by the sun.

Solar energy is an example of the suns energy converted to thermal or electrical energy to power things.
I hope this helps you a little at least. :)

The diagram below shows a model of the circulatory system. Red represents blood that has high oxygen content and blue represents blood that has low oxygen content.



When one part of the heart contracts, blood moves from the heart to the lungs. Which statement best explains this motion of the blood?
A. The heart only contracts when it contains blood with high oxygen content.
B. The lungs cause the heart to contract when they need more blood.
C. The lungs move to inhale and exhale gases when the heart contracts.
D. The heart supplies the force that moves blood through the body.

Answers

Answer:

I believe it's C

Explanation:

Answer:

D. The heart supplies the force that moves blood through the body

Explanation:

When a chamber of the heart contracts, the pressure provides a force that makes the blood move. Valves make sure that the force pushes the blood in the correct direction. Therefore, the statement which best explains this motion of the blood is that the heart supplies the force which moves blood through the body.

Is this right? Please help me

Answers

did you attach a picture? i don't see anything ????

If water has a density of 1g/cm will something with a density of 1 float or sink

Answers

Answer:it will float

Explanation:

When tectonic plates slowly push against each other, forces build up and
eventually the plates move to release the tension. The movement of the plates is
caused by- *

Answers

Answer:

The movement is caused by the convection currents that roll over in the upper zone of the mantle. This movement in the mantle causes the plates to move slowly across the surface of the Earth.

Explanation:

Which row in the chart correctly describes what would be expected to occur in
the potato cells, with regard to both the starch and water molecules?

Answers

Answer: A (More Water Will Move Into The Cell And Starch Will Remain In The Cell).

Explanation: No Explaining, You Got 17 Minutes Left On The Test, HURRY UP! Just Trust Me.

Answer:

Water: more water will move into the cell than will leave the cell.

Starch: Starch will remain inside the potato cell.

Explanation:

Hey there!

In this case, according to the given information, and the chart, it is possible to infer that the water molcules outside the cell will have the capacity to move inside it, via difussion, as more concentration is outside, creating a potential able to induce the process. In addition, the amount of molecules of water that get into the cell is greater than those leaving it, because of the aforementioned.

Moreover, since no starch molecules are outside the cell, there will not be any potential inducing the difusion process, for that reason these will not move anywhere.

Thus, the correct row states:

Water: more water will move into the cell than will leave the cell.

Starch: Starch will remain inside the potato cell.

Regards!

Can you complete this sentence for me please? . Different kind of fats contain different ________.

Answers

Different kind of fats contain different Saturated Fats.

Describe what lines up at the cell's equator during metaphase 1 of meiosis

Answers

During metaphase, spindle fibers attach to the centromere of each pair of sister chromatids. The sister chromatids line up at the equator, or center, of the cell. This is also known as the metaphase plate. The spindle fibers ensure that sister chromatids will separate and go to different daughter cells when the cell divides.

PLEASE ANSWER BRAINLIST

which one is tan limestone

Tilting,

Erosion,

Folding

Answers

Tilting sorry if I’m wrong

Answer:

Erosion

Explanation:

Which statement about cells is NOT true.
Contain substructures
O Have organelles that performs different functions
O Come together to form molecules
Are the basic unit of all living things.

Answers

Cells do contain sub structures called organelles. Each organelle within the cell performs specific functions. According to cell theory, cells are the basic units of life.

Cells do not come together to form molecules, because molecules are significantly smaller than cells and are present inside of the cell’s various structures.

Which natural polymers are involved with making clothing?

Answers

Answer:

wool, nylon, and DNA.

Explanation:

I'm smort

Explain the difference between a heterogeneous mixture and a homogeneous mixture

Answers

Answer:

A homogeneous mixture has the same proportions of its components throughout any given sample and is also referred to as a solution. Conversely, a heterogeneous mixture has components in which proportions vary throughout the sample. hope this kinda helped

Explanation:

During which stage of the cell cycle is the increase in nucleic acid polymers most apparent?

Answers

Answer:

The correct answer is - S or synthesis phase.

Explanation:

S phase or synthesis phase of the interphase is the phase of cell division which takes 5 to 6 hours to complete. In this phase the RNA content increases while DNA replication and synthesis takes place to provide enough genetic matter and polymer to complete the cell division.

Duplication or replication of the DNA increases the amount of nucleic acid for the successful division of the cell. S phase is the phase that prepares the parent cell for cell division.

Which of the following represents a chemical change?

Mowing of grass
Sublimation of ice
Dissolving sugar in water
Charring of a marshmallow

Answers

Answer:

the marshmello

Explanation:

Answer:

charring of a marshmallow

Explanation:

all the rest are physical changes

Identify the order of the eight levels of taxonomy, from least specific (largest) to most specific (smallest), using the drop down menus.

Answers

Kkkkkkkkkkkkkkkkkkkkkkkk

Answer:

✔ Level 6

Family

✔ Level 7

Genus

✔ Level 2

Kingdom

✔ Level 1

Domain

✔ Level 4

Class

✔ Level 8

Species

✔ Level 5

Order

✔ Level 3

Phylum

Explanation:

Which Earth processes break down rocks and transport the pieces? What types of rock can go through these Earth processes?

please help me its quarantine and i completely forgot LOL- call me dumb

Answers

Weathering/erosion and igneous rocks

Label the parts of the diagram using the following
1.centromere
2.gene
3.chromatid
4.histone
5.chromatin
6.chromosome

Answers

Answer:

A- CHROMOSOME

B- CHROMATID

C- CENTROMERE

D- GENE

E- HISTONE

F- CHROMATIN

Please help ASAP I’ll mark brainliest!!! Who ever answers first :)

Answers

CHARLIE DAMILO 135 is jzjsjsjsi
Gene is the correct answer

which part of the phospholipid like water

Answers

In phospholipids, the two fatty acids are hydrophobic, or insoluble in water. But the phosphate group is hydrophilic, or soluble in water.

(hope this helps ^^)

A ______ frequency causes a _____wavelength and ______ energy. Lesson: 4.09 Question 10 options: higher, shorter, high low, shorter, greater low, greater, shorter higher, greater, shorter

Answers

Answer:

A higher frequency causes a shorter wavelength and higher energy.

A shorter frequency causes a greater wavelength and low energy.

Explanation:

Frequency is the number of waves that move at a period of time. It is measured by counting the number of crest point.

Wavelength is the distance between waves. A wave with higher frequency have crest that a very close and therefore the distance between them or wavelength is short compare to a wave with low frequency that the distance are farther apart and they have long wavelength. Therefore to generate high frequency of wave , more energy is required to do this .

A chromosome that lacks a centromere would best be described as _____________.

a. heterochromatin
b. a single chromatid
c. in a duplicated state
d. a pair of sister chromatids

Answers

Answer:

b.

have a nice day dear

....

Several students were having a discussion about the role of chromosomes in inheriting traits.

Which statements made by the students provide the MOST accurate description?

[Select ALL that apply]

Chromosomes are the structures found in the nucleus of a cell. They are made from DNA, containing hereditary information in the form of genes that control how an organism will look and behave.

Genes contain thousands of chromosomes that carry specific information about building proteins for a particular trait.

Chromosomes are small sections of DNA that contain specific information about a trait to build proteins that people inherit. The thousands of different chromosomes passed from the parents allow for humans to look uniquely different.

Chromosomes come in homologous pairs (one from each parent) that each contain thousands of genes, determining traits expressed in the offspring.

Homologous chromosomes carry different gene sequences from each parent so the offspring may inherit more genes from one parent than they do from another parent.

Answers

Answer:

Chromosomes are the structures found in the nucleus of a cell. They are made from DNA, containing hereditary information in the form of genes that control how an organism will look and behave.  

Chromosomes come in homologous pairs (one from each parent) that each contain thousands of genes, determining traits expressed in the offspring.

Explanation:

Chromosomes are the structures found in the nucleus of a cell. They are made from DNA, containing hereditary information in the form of genes that control how an organism will look and behave.  - this is true. Prior to cell division, DNA molecules are organized into large structures called chromosomes. Specific regions of a DNA molecule are called genes. These dictate specific proteins which control our traits.

Genes contain thousands of chromosomes that carry specific information about building proteins for a particular trait.  - this is false - genes are segments of DNA that control specific traits by dictating the structure and functions of proteins. Chromosomes contain thousands of genes

Chromosomes are small sections of DNA that contain specific information about a trait to build proteins that people inherit. The thousands of different chromosomes passed from the parents allow for humans to look uniquely different. - this is false - chromosomes are large structures, genes are the relatively small sections of DNA. Humans have 23 pairs of chromosomes, not thousands.

Chromosomes come in homologous pairs (one from each parent) that each contain thousands of genes, determining traits expressed in the offspring.  - this is true. In diploid organisms, like humans, have two copies of each chromosome. These chromosomes contain slightly different versions of genes, which make us unique.

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