]To calculate the amount of heat entering or leaving a system, the equation
Q
=
m
c
Δ
T
is used.
Explanation:
m = mass (in grams)
c = specific heat capacity (J/g°C)
ΔT = change in temperature (°C)
Here, we will use the specific heat capacity for liquid water which is 4.19 J/g°C.
The mass given is 25.0 grams.
As for the change in temperature, I will assume that it start off at room temperature, 25°C.
25
°
C
−
0
°
C
=
25
°
C
Q
=
m
c
Δ
T
Q
=
25
g
r
a
m
s
⋅
4.19
J
g
°
C
⋅
25
°
C
Q
=
2618.75
J
Take into account significant figures and the answer should be
2.6
⋅
10
3
J
Answer link
why Reproduction is necessary for the survival of a species on this earth?
Answer:
Reproduction is vital to the success of a species. For a species to survive it must be able to produce more offspring than it loses though old age, disease, and predation.
Explanation:
Living things can reproduce in different ways – asexual reproduction and sexual reproduction.
Hope it helps.
The graphic shows the citric acid cycle. A diagram of the citric acid cycle is shown. Acetyl C o A enters the citric acid cycle and combines with a 4-carbon compound to form citric acid. During the citric acid cycle, what happens to acetyl-CoA? It enters the citric acid cycle and gains carbon dioxide to form citric acid, and gains more carbon dioxide through redox reactions to form a 4-carbon molecule. It enters the citric acid cycle and associates with a 4-carbon molecule, forming citric acid, and then through redox reactions regenerates the 4-carbon molecule. It enters glycolysis and associates with a 5-carbon molecule through redox reactions, forming another acetyl-CoA molecule. It enters the citric acid cycle and associates with a 4-carbon molecule, forming a 5-carbon compound, and then through oxidation reactions regenerates the 4-carbon molecule.
Answer:
It enters the citric acid cycle and associates with a 4-carbon molecule, forming citric acid, and then through redox reactions regenerates the 4-carbon molecule.
Explanation:
Acetyl-CoA(2C) associates with oxalacetate(4C) to form citric acid(6C). Then through redox reactions, CO2 molecules result from decarboxylation (COOH becomes R-(R1)CH-R2). And through dehydrogenation H2 molecules are incorporated in NADH+ in FADH2, resulting in the 4-carbon molecule at the beginning (oxalacetate). That's why it's called a cycle(Kreb's cycle or citric acid cycle)
In the citric acid cycle, when acetyl-CoA enters the cycle, it associates with a 4-carbon molecule (Oxalacetate), forming citric acid, and then through redox reactions regenerates the 4-carbon molecule (Oxalacetate).
--------------------
The resumed steps of the Citric acid cycle are as follows,
1) Acetyl CoA joins an oxaloacetate molecule, which is a 4C molecule. They release the CoA group and form a 6C molecule called Citrate.
Acetil CoA + Oxalacetato → Citrato + CoA group
2) Citrate turns into an isomere Isocitrate
3) Isocitrate oxidates and release 1 CO₂ molecule, producing an α- ketoglutarate molecule -this is a 5C molecule-. Meanwhile, NAD+ reduces to NADH.
Isocitrate + NAD+ → α-cetoglutarate + CO₂ + NADH
4) α-ketoglutarate oxidates and release 1 CO₂ molecule, producing a 4C molecule, which joins a Coenzyme A producing Succinyl-CoA. Meanwhile, NAD+ reduces to NADH.
α-cetoglutarate + NAD+ → 4C molecule + CO₂ + NADH
4C molecule + Coenzyme A → Succinil-CoA
5) CoA from Succinyl-CoA is substituted with a phosphate group, which then forms ATP. The final product is Succinate and ATP
Succinyl-CoA + Phosphate group + ADP → Succinate + ATP + CoA
6) Succinate oxidizes and forms Fumarate, a 4C molecule. FAD+ forms FAH₂
Succinate + FAD+ → Fumarate + FADH₂
7) A water molecule and Fumarate produce Malate, which is another 4C molecule
Fumarate + H₂O → Malate
8) Finally, malate oxidizes and oxalacetate regenerates -the initial 4C compound-. NAD+ reduces to NADH.
Malato + NAD+ → Oxalacetate + NADH
So, when acetyl-CoA enters the cycle, it associates with a 4-carbon molecule (Oxalacetate), forming citric acid, and then through redox reactions regenerates the 4-carbon molecule (Oxalacetate).
------------------------------------------
Related link: https://brainly.com/question/13369265?referrer=searchResults
10.La respiración vegetal involucra un conjunto de reacciones celulares por las cuales carbohidratos sintetizados por la fotosíntesis son oxidados a C02 y H20. En este proceso, la energía liberada se transforma en Su mayoría en ATP y compuestos de carbono intermediarios precursores de la síntesis de aminoáci- dos y compuestos nitrogenados derivados, entre otros. Podemos deducir de lo anterior que en el proceso de crecimiento de las plantas, la fotosíntesis y la respiración A. Se complementan en beneficio del crecimiento de la planta. B. Son procesos independientes para asegurar la subsistencia de la planta. C. Se alternan para garantizar que la planta tenga energía en todo mo- D. Ocurren simultáneamente para que permanentemente.
Answer:
La opcion mas correcta seria : "Se complementan en beneficio del crecimiento de la planta"
Explanation:
En la respiracion de los vegetales o plantas, obtienen como resultado dioxido de carbono y agua, estos dos productos luego son utilizados en la fotosintesis para poder formar la unidad energetica que es la glucosa y asi generar el autoabastecimiento alimenticio.
Q. 35 One treatment for high blood pressure is taking diuretics that prevent the kidney collecting ducts from reabsorbing water. How would diuretics reduce blood pressure? By increasing blood volume By decreasing blood volume By increasing heart rate By decreasing heart rate
The diuretics will increase the volume of urine. That means more water is taken from the blood and excreted. According to Boyle's law, the volume is proportional to the pressure(p1v1=p2v2). It means that if we decrease the volume of blood we also decrease the pressure.
That means second option
PLEASE HELP ME ASAP Which statement describes surface waves? They arrive before S waves. They travel faster than P waves. They are produced by P and S waves. They travel deep below Earth’s surface.
Answer:
They are produced by P and S waves
Explanation:
Got it right on Edge 2020
Answer:
produced by p and s waves
Explanation:
How do you think pollination takes place in flowering plants?
Answer:
My answer is down below.
Explanation:
Pollination occurs when the transfer of pollen grains from the anthers to the stigma of a flower of the same species take place. After reaching the stigma of the flower of the same kind of plant, the pollen grains absorb moisture from the stigma surface and begins to grow a tube. This tube is called the pollen tube.
Explanation:
insects typically pollinate flowers as they move from plant to plant searching for food. when an instects lands on a flower to feed, pollen grains sticks to its body. As the instects moves to another flower of the same species, these pollen grains are transferred to the flower's stigma and pollination occurs.
A critical biotic factor in Yellowstone National Park is
A. high elevation
B. high temperatures in the summer
C.population of wolves
form
D. proximity to water
Answer:
A
Explanation:
Describe what might be a possible structure for this new type of membrane. Describe what might be a possible structure for this new type of membrane. This membrane would have the polar groups on the two surfaces facing the nonpolar solvent, and it would have a hydrophobic interior. This membrane would have the polar groups on the two surfaces facing the nonpolar solvent, and it would have a hydrophilic interior. This membrane would have the nonpolar groups on the two surfaces facing the nonpolar solvent, and it would have a hydrophobic interior. This membrane would have the nonpolar groups on the two surfaces facing the nonpolar solvent, and it would have a hydrophilic interior.
The question is incomplete. The complete question is as follows:
Imagine a new type of cell was discovered on Mars in an organism growing in benzene, a nonpolar liquid. The cell had a lipid bilayer made of phospholipids, but its structure was very different from that of our cell membrane.
Describe what might be a possible structure for this new type of membrane.
A. This membrane would have the polar groups on the two surfaces facing the nonpolar solvent, and it would have a hydrophobic interior.
B. This membrane would have the polar groups on the two surfaces facing the nonpolar solvent, and it would have a hydrophilic interior.
C. This membrane would have the nonpolar groups on the two surfaces facing the nonpolar solvent, and it would have a hydrophobic interior.
D. This membrane would have the nonpolar groups on the two surfaces facing the nonpolar solvent, and it would have a hydrophilic interior.
Answer:
D. This membrane would have the nonpolar groups on the two surfaces facing the nonpolar solvent, and it would have a hydrophilic interior.
Explanation:
As per the description of the membrane, the membrane is made up of phospholipid and phospholipid are consist of two hydrophobic tails (non-polar) and one hydrophillic (polar) head.
As the cell membrane is growing in a non-polar liquid, benzene, the non-polar groups or hydrophobic tails will face the nonpolar solvent, as it will repel by the hydrophillic interior and polar head will face the interior of the memebrane.
Hence, the correct answer is D.
3) Because cardiac muscles are mechanically, chemically, and electrically connected to one another, cardiac muscle tissue functions like a single enormous muscle cell. For this reason, it is called a functional ________.
Answer: FUNCTIONAL SYNCYTIUM
Explanation: The cardiac muscles are the Pericardium (outermost), Myocardium (middle) and Endocardium (innermost) though three(3) in number but they work as a unit,this functional unit starts with the action of the pacemaker cells,the Sinoatrial nodes,Atrioventricular nodes, bundle of his,bundle branches/purkinjes fibers.
The contraction of the heart muscles relies on impulses from the nervous system and the contraction is coordinated and rapid inorder to bring about a uniform conduction of blood into, through and out of the heart.
The function of hemoglobin is to The function of hemoglobin is to stimulate erythropoiesis. carry dissolved blood gases. carry bicarbonate ion. produce antibodies. aid in the process of blood clotting.
Answer:
Carry dissolved blood gases
Explanation:
Haemoglobin is a protein usually found in the red blood cells and is said to be what give the blood its characteristics red color.
Haemoglobin is a protein that also contain some iron atoms which binds oxygen; a gas to itself and aid in the transport of oxygen from the lungs in some group of animals and gills in others to the rest of the body allowing for aerobic respiration to occur in the body.
Which statement about DNA is false? It can be used to identify an individual person. It is found in nearly all the cells of all living things. It can be found in human saliva, hair, and blood. Plants have DNA in three places: the nucleus, chloroplasts, and mitochondria. Humans lack DNA in their brain cells.
Answer:
Humans lack DNA in their brain cells.
Explanation:
in the human nervous system, what is a synapse? A. The difference in ionic charge between the inside and outside of a neuron B. the chemical signal that binds to the next call in a neuron C. A type of neuron that transmits signals from one neuron to the next D. The space between two neurons
Answer:
D
Explanation:
For more info, try specifically researching about synapse junctions
A synapse is a space between two neurons.
Where is the synapse between two neurons?The junction between the axon of one neuron and the dendrite of another, through which the two neurons communicate.
Why is there a gap between two neurons?The gap between two neurons called synapses helps in the quick transmission of impulses from one neuron to another. Other advantages of the synapse are Amplification of current flow.
Learn more about synapse here https://brainly.com/question/26387085
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Identify the parts of the female reproductive system by labeling the diagram.
1. Fallopian tube.
2. uterus
3. Fimbriae
4. ovary
5. cervix
6. vagina
hope this answer correct :)
[Blank] is a protein found in blood that is represented by a + or - sign, which affects the compatibility of blood with other blood types.
A) Rhesus factor
B)Antigen factor
C)Antibody factor
Answer:
the answer is rh factor.
Explanation:
Rh factor is known as the class of antigen or protein found on the rbc
If the protein is present, then the person is said to be Rh positive and when the protein is absent the person is said to be Rh negative.
Rhesus factor is present on the outside of red blood cells plasma membrane
Which description refers to fog? burns off when it gets dark extends up to 10 miles into the sky is found in areas near bodies of water forms when the ground warms at night after a cool, dry day
Answer:
forms when the ground warms at night after a cool, dry day
Explanation:
fog forms when the ground is cooler then the air around it
Answer:
[tex]\large \boxed{\mathrm{is \ found \ in \ areas \ near \ bodies \ of \ water}}[/tex]
Explanation:
Fog forms when water vapor condenses to tiny droplets of water. The moisture that creates fog is produced from nearby or at bodies of water.
The Center for Disease Control and Prevention recommended that men infected with Zika virus delay planned pregnancies. What is the recommended length of time for delayed conception for men afflicted with Zika virus?
Answer:
This should be 6 months
Explanation:
Generally ZiKa disease is caused by Zika virus,It is transmitted by Aedes mosquito as vector.It symptoms(rashes,fever,joint pains) are mild in the first week,but very severe in pregnant women.Men who visited then endemic region are advised to delay intercourse for 3 months,while those who were infected were recommended to abstain from sex for 6 months,
This is because the virus has been found in the semen longer than other body fluids.it has been found in infected semen for 180 days after healing.
In infected pregnant women,this can be transmitted to the fetus,causing microcephaly in the unborn child,Protection against mosquito bites is best way of prevention.
In exposed lady the period of abstinence should be 2 months.
differentiate Sympathetic and parasympathetic nervous system
Answer:
Sympathetic nervous system makes the body ready to fight or fight response during any danger in the body.
While
Parasympathetic nervous system slow the body from performing too much work there by restoring the body to calm and composed state
Explanation:
The autonomic nervous system is divided into two; the sympathetic and parasympathetic nervous system. The autonomic nervous system controls the involuntary actions of internal organs and glands.
The sympathetic nervous system originate from the spinal cord and and it's is responsible for accelerateing the heart rate, constricting blood vessels, and raising blood pressure. Thereby preparing the body to fight or fight response against any danger.
The parasympathetic nervous is a part of autonomic nervous system that also originate from the spinal cord which which slows the heart rate, increases intestinal and gland activity, and relaxes sphincter muscles. By doing this,it prevent the body from overworking itself and restore the body to a calm and composed state.
I will give the brainliest answer to someone who tells me what friction is
Answer:
friction is the force which comes against our force when we push a object
Which of the following is connective tissue?
what are chloroplasts? why are they green? how is the green colour plant of a great importance to the whole living world? explain?
Answer:
Chloroplasts are structures found in the cytoplasm of plant cells that are the site for photosynthesis. They are green because they contain a pigment called chlorophyll. Chlorophyll absorbs light to bring about the photosynthesis reaction. Light energy is crucial to initiate photosynthesis.
Photosynthesis allows the plant to convert carbon dioxide from air and water absorbed from the roots into oxygen and glucose, which are foods for plants. By releasing oxygen to air through photosynthesis, other living things can breathe in oxygen so that energy can be generated through another process, called respiration. Respiration is like the reverse reaction of photosynthesis, but it turns glucose to energy that supports living things.
Because plants also respire to generate energy, by using the glucose produced from photosynthesis, it also supports the food chain in the living world. Other organisms can consume plants for their energy.
In the end, chloroplasts and the chlorophyll inside are very important to the living world.
Which substance is used as an oxidizing agent in the chemical industries? Write its chemical name and formula.
Answer:
Hydrogen Peroxide is usually used as an oxidizing agent in the industries.
Chemical Name: Hydrogen Peroxide
Formula : [tex]H_{2}O_{2}[/tex]
Answer:
[tex]\boxed{\mathrm{H_2O_2}}[/tex]
Explanation:
Hydrogen peroxide is used as an oxidizing agent in the chemical industries.
The chemical name is Hydrogen peroxide.
Hydrogen peroxide is a chemical compound with the formula [tex]\mathrm{H_2O_2}[/tex].
The last few miles of the marathon are the most difficult for Heather. Her hair is plastered to her head, sweat clings to her arms, and her legs feel as if they had nothing left. Heather grabs a cup of ice water. The ice cubes smash against her nose as she gulps some cool refreshment and keeps on running. Then a breeze kicks up and she finally feels some coolness against her skin. Drops of sweat, once clinging to her forehead, now spill down, and Heather feels a stinging as the sweat flows into her eyes.Sweat on Heather’s forehead and arms formed drops because of the ______.
Answer:
heat.
Explanation:
Answer:
Hello! I am sorry I am late.
The answer is heat.
Explanation:
Hope this answer helped you. Have a great day or night! Good luck on your work!
<3 <3 <3
GEOLOGY Please help, need to turn it. Summarize the relationship between the composition, temperature, and volatile content of magmas and effusive vs. explosive eruptions.
Answer:
The classification of the single issue is outlined in the section represented in segment explanations below.
Explanation:
The highly unstable magma composition consists of small quantities of water as well as sewage, published as pressure decreases. The magmas established by regional metamorphism are also richly volatile in nature.The affectionate eruption has become a category of the explosion where the lava spreads rapidly at the on-the-surface eruption, individuals are most prevalent in sedimentary magmas, often occur spontaneously. Because of elevated heat, the fuels are withdrawn throughout magmas.However, in volcanic explosions, the magmas have been most aggressively ejected from the volcano whenever pressure at either the exhaust pipe is abruptly actually reduced.What is a monomer of a protein?
Answer:
A monomer is a molecule that can be bonded to other identical molecules to form a polymer
Amino acids are the monomers that make up proteins.
What are digestive enzymes? Give three examples of digestive enzymes and briefly describe their specific functions.
Answer:
Digestive enzymes are the natural substances our body needs to help break down and digest food
We have three main digestive enzymes :
Proteases: These enzymes break down protein into small peptides and amino acids.
Lipases: break down fat into three fatty acids plus a glycerol molecule.
Amylases: Are responsible for breaking down carbs like starch into simple sugars.
Explanation:
Digestive enzymes are proteins that catalyze mainly hydrolysis reactions that make nutrients absorbable in the digestive tract. Pepsin is a gastric enzyme that turns proteins into albumoses and peptones which are shorter peptide chains that are then hydrolyzed to even shorter chains until amino acids by intestinal enzymes. Pancreatic amylase is an enzyme that turns starch(a polysaccharide) into maltose(a disaccharide). Lipase is present in the gastric juice, the pancreatic juice, and the intestinal juice. This enzyme catalyzes the hydrolysis of lipids(mainly triglycerides) into fatty acids and glycerol. When incomplete hydrolysis occurs triglycerides can become monoglycerides.
What is the correct chronological order of important evolutionary events? Group of answer choices Evolution of bipedalism; regular use of stone tools; enlargement of brain to around 1,450 cc; increase in enamel thickness.
Answer:
evolution of bidepadlism,
increase in enamel thickness,
regular use of stone tools, enlargement of brain to around 1,450 cc
Explanation:
The list below represents some dominant and recessive traits observed in pea plants.
Dominant
Recessive
Green pods (G) Yellow pods (g)
Smooth seeds (S) Wrinkled seeds (s)
To produce 100% offspring with yellow pods and wrinkled seeds, what parental genotypes must a researcher use?
O GGSS X Ggss
ggSS X GgSS
O GGss X SSGG
ggss X ggss
Answer:
ggss x ggss
Explanation:
To produce 100% offspring having yellow pods (g) and wrinkled seed (s), we need to cross two organisms having yellow pods and wrinkled seeds.
You'll understand more by the Punnett square in the attached file.
What is produced at divergent plate boundaries?
a. Mountains
b. Oceans
c. New seafloor
d. Earthquakes
Answer:
new seafloor
Explanation:
natural selection occurs at the organizational level to
Answer:
B) population
Explanation:
Acts on phenotypes on the individual level but evolution is at the population level. Microevolution is evolution at the population level
Hope it helps you
Complete each statement with the correct term from the drop-down menu.
Many molecules are moved through the body by
.
provide structure for plants.
determine what people look like.
Cells are surrounded and protected by
.
speed up chemical reactions in the body.
Hemoglobin, a protein, is built by
.
The human body is insulated by
Answer:
1. Proteins
2. Carbohydrates
3. Nucleic acids
4. Lipids.
5. Proteins
6. Nucleic acids
7. Lipids
Correct on edge 2020!!!