ptyalin or salivary amylase is able to break down starches, but not protein as enzymes are specific to their substrates. Thus, option D is correct.
What are the function of ptyalin ?Ptyalin or salivary amylase is a starch hydrolyzing enzyme secreted by the chambers of human salivary glands.
It is secreted in the mouth and hydrolyzes starch into maltose and isomaltose.
It also produce small amount of dextrins which is otherwise called as the limit dextrins.
About 30% of starch are digested in mouth region by the help of ptyalin.
To increase the production is to eat foods containing natural digestive enzymes, such as fresh fruits.
This enzyme can work in a room with a high pH but cannot work in stomach, due to high acidity level.
Thus, option D is correct.
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6CO2 + 6H20 602 + C6H1206
Molecular Energy in Photosynthesis
Name of
Molecule
Chemical
Formula
Amount of Energy per
Molecule (in kJ per mole)
Carbon dioxide
CO2
799
Water
H20
467
Oxygen
O2
495
Glucose
C6H1206
9,467
Which statement correctly describes the flow of energy in photosynthesis?
A Photosynthesis releases energy when carbon dioxide and water combine to form glucose molecules.
B Photosynthesis releases energy when the reactants rearrange and form the bonds in the products,
Photosynthesis stores energy because energy is released when glucose is formed from carbon dioxide and water.
D Photosynthesis stores energy because more energy is stored in glucose than it is in carbon dioxide or water.
Answer:
Photosynthsis stores energy because more energy is stored in glucose than it is in carbon dioxide or water is the correct answer.
Explanation:
What is true of mutations?
They are always harmful.
They give us superpowers.
They are always helpful.
O
O
They cause the cells to make the wrong protein.
Answer:
C. They cause the cells to make the wrong protein.
Explanation:
A genetic mutation is an alteration of a particular base pair or nucleotide sequence in the genome. Mutations, since they alter the base pair, can change genes and their expression.
Explain what happens when a population experiences uncontrolled exponential growth.
Answer:
If the population ever exceeds its carrying capacity, then growth will be negative until the population shrinks back to carrying capacity or lower. Some disadvantages of having uncontrolled are the rapid urbanization associated with the population explosion and industrialization has created an imbalance in the ecology of the Southeast Region.
Explanation:
Answer:
When a population experiences uncontrolled exponential growth, the population will increase uncontrollably, leading to more resources being used and reaching the carrying capacity sooner.
Explanation:
HEELP ASAP I WILL GIVE BRAINLIEST!! IS THE ANSWER B?
Coal continues to be widely used in the US because
a) coal reserves are not found in environmentally safe areas
b) the country’s future supply of coal will ever stable for many generations
c) coal contains very few contaminants
Choose all the answers that apply.
Which of the following would be carried by suspension?
clay
large rocks
small pebbles
silt
sand
Answer:
clay
slit
Explanation:
What are two definitions of evolution, and why does evolution occur?
Answer:
the gradual progression of a species
Explanation:
as a species migrates it requires new adaptions to better survive and thrive in the new environment.
Suggest two specific reasons why determining the cause of death can sometimes be difficult.
Answer:
1. The person has been dead for a while so the body is old.( Decomposed)
2. The manner or cause of death (injuries)
Explanation:
1.
Determining the cause of death could be difficult if the person has been dead for sometime. This is going to make the body to be more decomposed since the body has become old.
2.
Another reason is if the cause of death is from an accident and the dead person sustained great injuries. The condition of the body would be poor and this is going to make examination difficult.
Coracias garrulus is a blue bird with an orange-brown back. The offspring of this bird have an effective defense mechanism. The young birds vomit and cover themselves in a foul-smelling orange liquid when they sense a threat by predators. Which two systems alert the young bird to the danger and help produce the vomit it uses as a defense
Answer:
The correct answer is - Nervous and digestive systems.
Explanation:
Coracias garrulus is a bluebird that has a unique defense mechanism in which it senses the danger or threat they vomit and cover themselves with their foul-smelling orange-yellow vomit.
The orange vomit or liquid store in the digestive system of the bird and when the bird's sense threatens it activates its nervous system which then intern sends a signal to the digestive system and the urge of vomit on its young ones and cover in that.
The nervous and digestive systems are the body systems that alert the young bird to danger and help produce the vomit it uses as a defense.
The nervous system is a body system by which animals coordinate actions and sensory information such as alert signals.The nervous system transmits signals to different parts of the body including the digestive system.The digestive system is the body system that acts to digest foods, having reflexes that allow to eliminate them by vomiting.In conclusion, the nervous and digestive systems are the body systems that alert the young bird to danger and help produce the vomit it uses as a defense.
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Why is air circulation important for photosynthesis to function properly?
Who first identified DNA?
Answer:
Johann Friedrich Miescher
Explanation:
2
The scientific names Ursus maritimus, Ursus arctos and Ursus americanus all have a common
name meaning...
They are closely related
They are distantly related
They have a distant but common ancestors
ОО
They are not related at all
Choose all that applyChoose all that apply What causes the relationship of carbon?
1.The death of living things
2.Volcanic eruption
3.burning fossil fuels
4.fires
help please that would be great
Answer:
B or E
Explanation:
B and E are selected by man-kind not nature itself.
Down syndrome is one of the most common genetic disorders, occurring in 1 out of 800 births. What percentage of the population would have Down syndrome?
Meiosis results in blank for the zygote
Answer:
Gametes
Explanation:
Meiosis results (ultimately) in gametes
1. A pot of boiling water is first headed at the bottom, and then as the warmer water rises and mixes, the
water is heated throughout. Which form of energy transfer is this?
If animal droppings spread seeds then when spreads it also then which spreads it faster?
A. Animal droppings.
B. Wind.
Answer: Animal droppings
Explanation:
PLEASE HELP!!!
The process of DNA replication occurs just before ______.
Select one:
a. nucleosynthesis
b. replication
c. cytokinesis
d. nuclear division
Answer:
d. nuclear division
Explanation:
sorry if that i wrong
Answer:
the answer is replication
Explanation:
double stranded DNA molecules are copied to produce two identicle DNA molecules.
According to the passage, what causes mutations during protein synthesis?
A. A wrong base becomes a permanent part of a new DNA sequence.
B. Most mutations happen spontaneously as DNA replicates itself.
C. A great many mutations occur due to chemicals in the environment.
D. Mutations do not occur during the process of protein synthesis.
Answer:
d.
Explanation:
Give an example of how using soil, trees, or air might result in a tradeoff
Answer:
As trees grow, they help stop climate change by removing carbon dioxide from the air, storing carbon in the trees and soil, and releasing oxygen into the atmosphere. Trees provide many benefits to us, every day.Explanation:
sorry if that doesnt help but hopefuly it does:)
By using soil, trees and air will result in a trade off due to increasing in one factor and decreasing in another factor.
Using soil, trees and air result in a tradeoff by using the carbondioxide gas in the atmosphere. The trees increase in high and vegetative growth by decreasing the carbondioxide gas in the atmosphere. In tradeoff, one thing increases, and the another must decrease.
So if the trees grow in size the concentration of carbondioxide gas decreases due to the process of photosynthesis by the tree so we can conclude that using soil, trees and air will result in a trade off due to increasing in one factor and decreasing in another factor.
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Anhidrosis is the inability to sweat normally.If the human body cannot sweat properly, it cannot cool itself, which is potentially harmful. Anhidrosis most directly interferes with
Answer:
Feedback mechanism that maintain homeostasis
Explanation:
This is because homeostasis is the ability to maintain internal environment and therefore a person with anhidrosis cannot sweat and it's body cannot cool because homeostasis is not maintained. It has effect on the negative feedback mechanism that maintain homeostasis because negative feedback can increase or decrease response to stimulus and inhibiting the stimulus ability to continue. This decrease the ability of the body to response to stimulus of heat which make to body to bring about cooking.
What is the frequency of a photon with an energy of 3.38 x 10-19 J?
A. 6.71 x 1014 Hz
B. 5.10 1014 Hz
C. 1.96 1014 Hz
D. 4.47 1014 Hz
Answer:1.96*10^14 Hz
Explanation: energy = frequency*Planck constant
3.38*10^-19 J= frequency Hz*6.62607015*10^-34 Jsec
freq Hz = 3.38*10^-19/6.62607015*10^-34 = about 2*10^14
Answer:5.10 x 1014
Explanation:
Water pollution does NOT contribute to which of the following problems?
— Human illnesses
— Global warming
— Mutated fish
— Weak crops
Answer:
Global Warming
Explanation:
Human illness-people get sick from bad water
Mutated Fish-Fish get mutated from toxic waste
Weak Crops-Crops don't get enough nutrients
It has to be global warming
Answer:
Global Warming
Explanation:
Even though mutated fish are not mentioned in the lesson, they are considered a problem water pollution has contributed to by Edge.
Natural selection causes what to occur?
1. evolution
2. survival of the fittest
The law of independent assortment
3. Mendel's law of segregation
4. genetic drift
Answer:
(1.) Natural selection causes evolution to occur.
Explanation:
Over time, the naturally occurring variation within a population that arise from mutations, alter in frequency. Some of these variants or traits, may confer advantages to certain organisms, allowing them to reproduce and pass on genes more successfully. These traits become fixed within the population, and eventually the individuals evolve to form a species.
Natural selection, acts on evolution, for or against traits. It ensures that individuals with traits well-suited to their environments and reproductive fitness survive.
Answer:
1. evolution
Explanation:
Natural selection causes populations to become adapted, or increasingly well-suited, to their environments over time. Natural selection depends on the environment and requires existing heritable variation in a group.
Which are advantages of using renewable resources? Choose all that apply
Answer:
Generating energy
Explanation:
that produces no greenhouse gas emissions from fossil fuels and reduces some types of air pollution.
Diversifying energy supply and reducing dependence on imported fuels
Question 2
1 pts
In November 2013 an object orbiting the sun seemed to disappear behind the sun. When a
satellite did not detect the object, astronomers thought that the object had been destroyed when
it passed close to the sun. However, when another satellite detected a small, bright object with a
fan-shaped tail, astronomers proposed that the object was not destroyed.
What type of object were astronomers most likely observing?
OF A comet
OG An asteroid
OH A meteor
OJ A nebula
Answer:
A coment
Explanation:
The embryonic stage where the embryo cells are arranged into a hallow ball is called
A) Morula
B) Blastula
C) Grastula
D) Fetus
PLEASE NO TIME WAISTERS
Answer:
blastula
Explanation:
Burning oil and coal adds ______ to the atmosphere.
Answer:
carbon dioxide
Explanation:
because when these things burn they produce many harmful gases which harm the environment and cause pollution
Help meeeeeeee I have a test soon
Answer:
D
Explanation:
Because... Almost all animals and humans are obligate aerobes that require oxygen for respiration, whereas anaerobic yeast is an example of facilitative anaerobe bacteria. Individual human cells are also facilitative anaerobes: They switch to lactic acid fermentation if oxygen is not available.
✨PLEASE HELP✨DUE SOON✨
Answer:
50%
Explanation:
Type O is canccelled out, so there is a 50% chance of the baby getting type A blood and a 50% chance of the baby geting type B blood.