Answer:
a. can cause large changes in enzymatic activity.
Explanation:
An enzyme refers to a biological catalyst that is typically used to speed up (accelerate) the rate of a chemical reaction by lowering the activation energy of its reactants.
When the activation energy of a reaction is low, the rate of the reaction would be faster. Therefore, an enzyme speeds or catalyzes the rate of a reaction by lowering its activation energy. Also, if the conditions are not optimal for an enzyme, it limits the ability of an enzyme to bind or be joined with its substrates. An increase in temperature increases or speeds up the rate of a reaction while low temperature limits or reduces the rate of a reaction. The optimal temperature for enzymes in the human body is around 37 degrees celsius.
An allosteric effector can be defined as an agent, organ or molecule that is being binded to an enzyme at a site, thereby causing a reduction (negative effect) or an increase (positive effect) in an enzyme activity.
Hence, an allosteric effector can cause large changes in enzymatic activity because it acts as an intermediary and mediates specific effect in a metabolic pathway.
Scientists were investigating a pond of water found deep in a South American cave along the Yucatan Penisula. They obtained many samples which they took back to their lab. After much testing, they found that the water has an acidic pH of 3. Another much more surprising discovery was that a new species of a unicellular organism was present in the samples. The organism was observed with a microscope and found to not have a bound nucleus or organelles. To which Domain would this organism be classified?
Group of answer choices
Bacteria
Protista
Eukarya
Archaea
Answer:
Bacteria
Explanation:
Bacteria is the correct answer because it lacks organelles or a nucleus.
Protista is not the correct answer because they have organelles and a nucleus.
Eukarya is not the correct answer because they have organelles and a nucleus.
Archaea is not the correct answer because they have organelles and a nucleus.
Bacteria is the correct answer because it lacks organelles or a nucleus. Protista is not the correct answer because they have organelles and a nucleus.
What is Bacteria?Eukarya is not the correct answer because they have organelles and a nucleus. Archaea is not the correct answer because they have organelles and a nucleus.
Microbes known as bacteria have simpler cell structures than many other types of creatures. One DNA loop serves as their command center and houses all of their genetic data. Instead of a nucleus, some bacteria have an additional ring of genetic material called a plasmid.
Genes that offer the bacterium a competitive edge over other bacteria are frequently found in the plasmid. For instance, it might have a gene making the bacterium immune to a specific antibiotic.
Therefore, Bacteria is the correct answer because it lacks organelles or a nucleus. Protista is not the correct answer because they have organelles and a nucleus.
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At the end of anaphase 1 (meiosis), how many
chromosomes are on each side?
in the blank circle, draw the moon phases we would see if we were on Earth in the diagram and then write the name of that moon phase on the blank line
Answer:yThe Moon has phases because it orbits Earth, which causes the portion we see illuminated to change. The Moon takes 27.3 days to orbit Earth, but the lunar phase cycle (from new Moon to new Moon) is 29.5 days. ... As the Sun sets, the Moon rises with the side that faces Earth fully exposed to sunlight (5).
Explanation:
PLEASE HELP !
this is any multicellular living thing that obtains energy from sunlight or makes it own food
= ??
Answer:
Autotroph
Explanation:
Hannah and Becca are fraternal twins. They are both athletic. Hannah is a swimmer, and Becca is a runner. Which sister would have denser bones?
According to the question, Hannah would have denser bones because her bone would get heavier due to water absorption through epithelial cells.
What is Bone density?Bone density may be characterized as a type of measurement that significantly involves the accumulation certain amount of minerals contained in a certain volume of bone. This measurement is generally used to find out and treat serious bone loss, called osteoporosis.
When an individual is practicing in a swimming pool constantly for a longer period of time, it is observed that his/her bone density must be increased as compared to those who are running or performing other types of athletic activities.
Therefore, according to the question, Hannah would have denser bones because her bone would get heavier due to water absorption through epithelial cells.
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Please look at the picture and answer ASAP
Carbonized fossils are made of:
O the carbon remains of the original organism
O carbon which replaced the plant or animal
O a cast of coal
O a mold left in coal
Answer: are the substance left after the organism was buried.
Explanation: I know this is not a answer but the carbon is rapidly buried until its rock.
Every cell has 3 billion DNA base pairs. How does this long strand of DNA fit into a nucleus?
Answer: These DNA though is long, it is small. it would be half-squished in the nucleus. Because it is half squished, that is why they can be infected by viruses.
This answer not be correct, by the book i read said so.
What is one of the causes of mechanical weathering?
A. acid rain
B. oodation
C. animal actions
D. carbon dioxide
Answer:
answer is A hope it helps if it dont what can i help you with later.
Explanation:
Which of the following is a correct way to report an example of the speed of an object?
A 50 s/m
B 50 m/km
C 50 m/s
D 50 s/km
Answer:
C. 50m/s
Explanation:
speed is distance/time
m/s
In many parts of the world, there is a rock layer rich in the metal iridium. Iridium is very rare on Earth, but it is relatively common in meteorites and other debris that comes from outer space. All occurrences of this iridium layer are from the same geologic epoch, at the very end of the Cretaceous. Most of the fossils in rock layers below the iridium layer, including dinosaur fossils, do not appear in layers above the iridium layer.
Based on this evidence from the rock and fossil record,
A.
meteoroids and other space debris did not impact the Earth at the end of the Cretaceous.
B.
an asteroid impact likely caused a mass extinction at the end of the Cretaceous.
C.
meteorites and other space debris no longer contain the metal iridium.
Answer:
B.
an asteroid impact likely caused a mass extinction at the end of the Cretaceous.
Explanation:
I did this assinment.
Answer and I will give you brainiliest
**Please only surely answer**
Answer:
Semicircular canals
Your welcome!!
b. The muscle attachment that is usually relatively fixed is called its
Answer:
Sud I k igkckcjc sorry I don't know
Answer:
Origin
Explanation:
In cystic fibrosis, an important protein destined for the plasma membrane never makes it beyond the Golgi complex. This protein is necessary for Na and Cl- transport and is critical for maintaining mucous secretions of the appropriate consistency. Devise an explanation for why this may occur.
Answer:
The correct answer is - Golgi apparatus marks or tags on this protein as incorrect or dysfunctional tags which then prevents it from transported to the membrane.
Explanation:
The role of the Golgi apparatus is to process and package the proteins produced and come from ER and transfer them to the plasma membrane in order to transfer them to their target sites.
The Golgi apparatus marks or tags the proteins that are incorrect or dysfunctional, in order to prevent these proteins from transporting to the plasma membrane and harm the membrane. In CF, the case is similar as the Golgi apparatus tags these proteins as incorrect or dysfunctional.
What is poisonous enough to kill 100,000 turkeys? That’s the question asked by scientists who studied a mass die-off of turkeys in Great Britain. It turned out that all the turkeys had eaten peanuts from Brazil. A fungus was growing on the peanuts. The fungus produced a dangerous poison called aflatoxin. Aflatoxins cause stomach pain, lung failure, cancer, and death in people and animals.
Farmers make a great effort to prevent fungi from growing on their stored crops. In a pile of grain or nuts, fungi have plenty of food and living space. The best way for farmers to prevent fungi from growing is to make sure there is not enough for fungi to survive and grow.
Answer:
what am I supposed to answer?
Why do multicellular cells communicate together?
1. To maintain strength and shape
2. To be more organized
3. To maintain homeostasis
Answer:
I think 3 because I had the same thing but eah
Why does a pea plant with the genotype Rr have round seeds, not wrinkled ones.
Answer:
Wrinkled peas need to have genotype rr, since the wrinkled trait (r) is recessive
What were the 2nd & 3rd rovers on Mars called?
What was the 4th rover on Mars called?
plz help
Answer 8-9 please.................. And 13
Answer:
1. A
2. C
3. C
Second page:
1. A
2. C
3. D
Explanation:
What type of cell is not differentiated
Please answer fast!
What are the two arteries where you can check your
pulse?
A. brachial and dorsalis
B. facial and femoral
C. carotid and radial
D. temporal and auricular
Answer:
c
Explanation:
Because the Carotid is your wrist and Radial is your neck
The following are examples of chemical energy
a. Natural gas
b. Wood
c. Coal
d. All of the above
Answer:
ANS= ALL OF THE ABOVE ARE THE CHEMICAL ENERGY.
Moving your limb through a full 360 degree circle is called what*
Rotation
Circumduction
Flexion
Extension
Answer:
rotation
Explanation:
circle is 360 degrees
Moving your limb through a full 360 degree circle is called rotation of your limb.
What is rotation?Rotation is the process of moving an object or a body from a central position, through the circumference of that position.
This type of motion is usually 360 degrees movement because it involves a complete circle or turn.
Thus, moving your limb through a full 360 degree circle is called rotation of your limb.
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The building blocks of DNA are like alphabet letters, because they:
A. Are each associated with a particular sound
B. Can be used in a variety of languages
C. Each have an uppercase and a lowercase form
D. Spell out different instructions depending on their order
Answer: The answer is D.
Explanation: It makes the most sense and explains how both the aplhebet and DNA have simrialities.
The building blocks of DNA are like alphabet letters because they spell out different instructions depending on their order. Thus, the correct option for this question is D.
What are the building blocks of DNA?The building blocks of DNA are known as nucleotides. These nucleotides are made up of three parts. They are as follows:
A phosphate group.A pentose sugar.Nitrogenous base.These nucleotides are arranged by one another with the help of a linkage known as phosphodiester linkage. Nitrogenous base in nucleic acids like DNA includes Adenine, Thymine, Cytosine, and Guanine. In the DNA, they are represented as A, T, C, and G. Due to this, the building blocks of DNA are like alphabet letters.
Therefore, the building blocks of DNA are like alphabet letters because they spell out different instructions depending on their order. Thus, the correct option for this question is D.
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please help! I will give brainly! x
Why was 1990 an important year regarding air quality?
The United States took first steps to keep the air clean.
The United States created the Environmental Protection Agency.
Modifications and improvements were made to the Clean Air Act.
Funding was established under the Clean Air Act to study air pollution.
Answer:
C. Modifications and improvements were made to the clean Air Act.
Explanation:
Btw I answered first
Identify the sentence type in the following: Max likes macaroni?
Simple
Compound
Complex
Compound-complex
Identify the sentence
Volcanoes are part of which sphere of Earth?
a. biosphere
b. geosphere
c. hydrosphere
d. atmosphere
Bruce Wallace (1963) established a laboratory population in which the recessive allele lt was at a frequency of 0.5. He propagated the population for 10 generations, and determined the frequency of lt each generation.
a. True
b. False
Answer:
a. True
Explanation:
Bruce Wallace was a professor emeritus of genetics who performed many population studies. He worked in 1958 at the University of Cornell as a professor of genetics. In 1963, he performed a population study wherein the recessive allele It was at a frequency of 0.5. The population was propagated for 10 generations and the frequency of It for each generation was determined.
The result of this study showed that lt/lt died without reproducing, whereas, individuals with genotype +/+ were normal.
Jon lives on the coast of California, near the Pacific Ocean. A cold current flows past the coast. What is the most likely effect of the cold water current on the climate where Jon lives?
A: The climate would be less humid than nearby inland areas.
B: The cold water current would keep summer weather cooler than nearby inland areas.
C: The climate would have weather that changes more throughout the year than nearby inland areas.
D: The cold water current would cause the area to have warmer weather year-round than nearby inland areas..
Please help.
Answer:
a
Explanation:
Answer:
i think c?
Explanation:
hope this helped
The images represent sexual and asexual reproduction. These methods of reproduction vary in terms of the genetic composition of offspring. In __________ the offspring are genetically identical to the parents.
Answer:
in asexual reproduction the offsprings are genetically identical to the parents.
Explanation:
Answer:
Images B and C
Explanation:
.