The correct answer is option B
Which statement about enzymes is true?
An enzyme functions to decrease the rate of a chemical reaction.
Enzymes are proteins that function as catalysts in nonliving things.
Each enzyme can catalyze many different biochemical reactions.
Enzymes and substrates fit together like a lock and key.
Answer:
Enzymes and substrates fit together like a lock and key.
Explanation:
lock and key theory explains this.
Enzymes and substrates fit together like lock and key is the correct statement about enzymes.
What are enzymes?Enzymes are specific kind of protein which increase the speed of chemical reaction. An enzyme functions to increase the rate of chemical reaction. Enzymes are specific kind of proteins that function as a catalyst in living things.
Each enzyme can catalyze specific biochemical reactions only. Each enzyme is specific for specific substrate. Enzymes and substrates fit together like a lock and key. They increases the rate of reaction without participating in it. They are protein in nature.
In human body as well different enzymes are found which helps in various functions such as respiration, digestion, muscle and nerve functions.
Therefore, Enzymes and substrates fit together like lock and key is the correct statement about enzymes.
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Please need answer asap
The higher the activation energy of a chemical reaction the easier it will be to get the reaction started true or false
the difference between eukaryotic cell and prokaryotic cell
Answer:
Comparing prokaryotes and eukaryotes
The primary distinction between these two types of organisms is that eukaryotic cells have a membrane-bound nucleus and prokaryotic cells do not. The nucleus is where eukaryotes store their genetic information.
Why would it be important for zoos to collaborate with each other when it comes to managing captive populations?
Matthew ate 3/8 of a pizza which was a total of 510 cal of food which equation can we use a determine the total number of calories in the entire pizza
Answer:
3/8x = 510
Explanation:
3/8x = 510 (3/8 of x is equal to 510)
What’s the answer to this question
Answer:
D
Explanation:
Crayfish depend upon small invertebrates for survival. If there is a large decrease in the number of small invertebrates, then there aren't enough nutrients to go around, and so crayfish that don't get nutrients will start dying out.
Hope this helps!
Even-aged management practices involves clearing trees that
a. are all the same height
b. are all the same weight
C are all near the same age
d. are all of widely different ages
Please select the best answer from the choices provided
ΟΑ
OB
ОС
OD
What feature do anticyclones
create at Earth's surface as they
spiral outward?
A. areas of low pressure
B. stationary fronts
C. areas of high pressure
D. occluded fronts
Answer:
Areas of high pressure
Explanation:
The most accurate conclusion to be drawn from the graphs is that...
A.) Adult fish of this species are found more frequently in water at 22 degrees Celsius than are juvenile
B.) Fish of this species are found most frequently in water at 20 degrees Celsius.
C.) The optimum water temperature for adult fish of this species is 25 degrees Celsius.
D.) The oxygen content of cool water is higher than that of warm water.
Answer:
I think the answer is A
Explanation:
The adult fish at 22 degrees is higher than the juvenile fish at 22 degrees, so it would make sense
2.2 A learner gives you a rather expensive cycad in a pot for your birthday. The class monitored and documented its growth throughout Term 3. You decided to leave it outside your classroom during the school holidays but found it dead when you returned to school. Explain to your class why this might have happened. (5)
Cycads are an group of vascular plants that are ancient and were prominent components of the world's flora. As the cycad should not be kept dry, leaving it outside the classroom during holiday and not watering properly was the main reason behind the loss of that cycad.
What are the conditions in which a cycad can grow well?Cycads usually prefer warm, moist environments in full sun for survival. As some species are also adapted to dry arid areas, with less winter rainfall.
With respect to the soil, Cycads can tolerate most garden soils with the addition of compost and organic matter, till they are well-watered.
As the cycad was left in the classroom during the school holidays and was not watered and given compost properly, it was found dead.
Thus, watering and composting was the main reason behind the loss of that expensive cycad.
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Which of the following is true about the Earth’s atmosphere?
*
The atmosphere contains oxygen for organisms to breathe
The atmosphere blocks a lot of UV radiation from the sun
The atmosphere protects the Earth from meteorites
Two of the above are true
All of the above are true
SOMEONE, PLEASE HELP ME :/
Based upon the Principle of Superposition, which layer is older
Answer:
Base
Explanation:
law of superposition, a major principle of stratigraphy stating that within a sequence of layers of sedimentary rock, the oldest layer is at the base and that the layers are progressively younger with ascending order in the sequence.
Which of these is a function of the placenta?
A. To store the embryo's wastes
B. To hold the fetus upside down for birth
C.To digest food for the fetus
D. To bring oxygen to the embryo's cells
What could be added to soil plot one to make the water drain and the soil more hospitable for growing plants
Answer:
large rocks
Explanation:
How do I make my soil drain better for plants?
Adding lots of organic matter such as compost, farm manure, or shredded leaves to clayey soil will allow it to drain more easily and hold the right amounts of water and air for better plant growth and increased biological activity.
Answer:
I think its clay
but I am probably wrong
Explanation:
Global climate is determined.......
A.
by the transfer of solar energy at and near the Earth's surface.
B.
by clouds reflecting all of the Sun's energy back into space.
C.
by solar energy interacting with land but not water.
D.
completely by greenhouse gas emissions from human activities.
Answer:
completely by greenhouse gas emission from human activities
Solar wind
Earth
Enlargement
Equator
In the enlargement in the diagram, what does point A represent?
Answer: The solar wind streams plasma and particles from the sun out into space. Though the wind is constant, its properties aren't.
Explanation:
Why is the cell membrane said to be semipermeable?
Valuable about living things?
Answer:
Living things are valuable because most do us good in some unique way, from kindness to improving the environment. Without living things, the earth would be very dull and you would not be able to breathe, because trees are a living thing. Trees help us breathe by controlling the air.
In 387 B.C. the Academy was formed in Greece as a school for what purpose? A. thought and philosophy B. poetry and grammar C. mathematics
Answer:
the answer is A.
Explanation:
hope this helps
Answer:
b
Explanation:
Which of the following is the best example of an approach-approach conflict?
O Deciding if you should quit your current job.
o Deciding between two exciting location options for your vacation.
o Deciding if you should accept a promotion that you have earned at work.
o Deciding if you should pay your electric bill or your car payment with your paycheck.
7. Which organism would usually be in the fourth trophic level?
(a) rats
(b) humans
(c) rabbits
(d) hawks
The organism that would be in the fourth trophic level is the hawks. That is option D.
What are trophic levels?Trophic levels are the different feeding positions that are found in a food chain and which shows the movement of energy from one position to another.
The organisms on the fourth level of a food chain are known to consume the secondary consumers.
Therefore, the hawk in an organism of the fourth trophic level because it can eat snakes which are secondary consumers.
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14C has a half-life of 5,370 years. Assume that a sample of organic material contains 4.0 grams of 14C. Three half-lives would be?
The amount of the organic material that would remain after three half-lives has elapsed is 0.5 g
Data obtained from the question Half-life (t½) = 5370 yearsOriginal amount (N₀) = 4 gNumber of half-lives (n) = 3Amount remaining (N) = ?How to determine the amount remaining
The amount remaining after 3 half-lives has elapsed can be obtained as follow:
N = N₀ / 2ⁿ
N = 4 / 2³
N = 4 / 8
N = 0.5 g
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hormones are transported from one part of the body to another
Hormones travel throughout the body, either in the blood stream or in the fluid around cells, looking for target cells. Once hormones find a target cell, they bind with specific protein receptors inside or on the surface of the cell and specifically change the cell's activities.
Explanation:
Hormones are secreted by glands and travel to their target oragan through bloodstream.
propose two ways the body temperature of a sick person can be brought down to normal
3 ways you can bring down someone’s body temperature
Swimming in cool water Bathing in cool water, Soaking in cold waterWhich situation show a nonrenewable resource in use
Answer:
coal, natural gas, oil, and nuclear energy
Explanation:
Hope it helps . Thank You !!!
21. In terms of cellular respiration, if a human being were to restrict their intake of glucose, he or she would produce:
A.) less glucose.
B.) less carbon dioxide.
C.) more water
D.) more oxygen
If a human being were to restrict their intake of glucose, he or she would produce less carbon dioxide. That is option B.
What is cellular respiration?Cellular respiration is the process that occurs in living organisms whereby oxygen combines with glucose and converts the chemical energy into live sustainable substances.
In cellular respiration, carbondioxide is given off as a waste product.
Therefore, if there is restriction of glucose intake, cellular respiration will cease and so the waste products.
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If a human being were to restrict their intake of glucose, he or she would produce less carbon dioxide (Option B).
What is cellular respiration?Cellular respiration refers to the chemical processes by which aerobic cells can produce ATP by using the energy from foods (eg. glucose).
This process (cellular respiration) also consumes oxygen and releases carbon dioxide into the atmosphere.
In conclusion, in terms of cellular respiration, if a human being were to restrict their intake of glucose, he or she would produce less carbon dioxide.
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3. How important is product description in every product?
Answer:
A product description is used to show a products value to a potential customer on your website. If done well, it will provide features and benefits of the product which will influence a potential customer to purchase. A product description should include a description on how it can fix a customers problem.
Explanation:
Hope it will be the answer
identify the different forms that water takes as altitude increases. (surface to the upper troposphere)
At sea level water occur in natural liquid form in seas, lakes, rivers, waterfall. Water can be salty or freshwater.
What is troposphere?The layer of the atmosphere closest to the earth is the troposphere. This layer is where weather occurs. It starts at the surface of the earth and extends out to about 4- 12 miles. The temperature of the troposphere decreases with height. This layer is known as the lower atmosphere.
As the altitude increases water changes its form as on the mountains where temperature is very low, exist in snow form. As the more height increases, the water changes into water vapour. In stratosphere water changes into gaseous form called as clouds.
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How can dry ice literally burn you?
Does it burn everyone if handled with bare hands?
Answer:
While dry ice looks like it would be cold, it's extremely dangerous to the touch and can cause severe burns.
Explanation:
Dry ice is frozen carbon dioxide. It has the very nice feature of sublimation as it melts, it turns directly into carbon dioxide gas rather than a liquid. If you ever have to handle dry ice, you want to be sure to wear heavy gloves, because a block of dry ice has a surface temperature of -109.3 degrees Fahrenheit (-78.5 degrees C). The super-cold surface temperature can easily damage your skin if you touch it directly. It's actually a lot like if you were to touch the handle of a hot pot or pan without an oven mitt.
Answer:
Its burns if you have no gloves but the gloves have to have 5 layers
Explanation:
