4 The graph below shows how the activity of an enzyme changes
over a range of pH values.
Enzyme Activity
Percent of Maximum Activity
100
90
80
70
60
50
40
30
20
10
0
5.0 5.8 6.6 7.4 8.2 9.0
pH
Which of the following conclusions is supported by the data?
A. The optimum pH of the enzyme is 6.6.
B. The optimum pH of the enzyme is 5.8.
C. The enzyme's activity is greater around pH 8.0 than around
pH 5.0
D
The enzyme's activity continually increases as pH increases
from 5.0 to 9.0
Answers
Answer:
A
Explanation:
A. The optimum pH of the enzyme is 6.6. - this is true. The optimum pH of the enzyme is where its activity is the highest. On the graph, this is pH 6.6 (activity at 100)
B. The optimum pH of the enzyme is 5.8. - this is false, the activity of the enzyme peaks at 6.6 (100), at 5.8 the activity is 80
C. The enzyme's activity is greater around pH 8.0 than around pH 5.0 - This is false, the activity at pH 5 is 50, whereas at around 8 it is 20.
D . The enzyme's activity continually increases as pH increases from 5.0 to 9.0 - this is false. The activity drops between pH 6.6 and pH 9.
Related Questions
which of the following components of the eye is responsible for two-thirds of the focusing? a. the retina b. the aqueous humour c. the cornea d. the fovea e. the lens
Answers
The component of the eye responsible for two-thirds of the focusing is the lens.
The lens is a transparent, flexible, and biconvex structure located behind the iris and pupil. It plays a crucial role in the eye's ability to focus light onto the retina. When the ciliary muscle contracts, it changes the shape of the lens, allowing it to adjust its refractive power and focus light onto the retina. The curvature of the lens changes to adjust for near and far vision, allowing us to see objects clearly at different distances. The cornea is responsible for the remaining one-third of focusing, and the other components of the eye, such as the retina and fovea, play important roles in vision but are not directly responsible for focusing light onto the retina. The aqueous humor is a clear fluid that provides nutrients to the cornea and lens but does not contribute to focusing light.
Learn more about aqueous humor here:
https://brainly.com/question/8956841
#SPJ11
During _____of the cell cycle, the cell grows and replicates both its organelles and its chromosomes.
Answers
Answer:
interphase
Explanation:
In the cell cycle the longest stage is interphase. This is when the cell grows and copies its DNA before moving into mitosis.
Consider a species of frog that lives in many ponds throughout central California. A group of the frogs in one of the ponds, NOT including the other species of organisms living there, is an example of a(n)
Answers
A population is a group of individuals of the same species. A group of the frogs in one of the ponds is a population.
What is a population?
A population is a group composed of individuals of the same species inhabiting the same space at the same time.
These individuals can mate with each other and leave fertile offspring.
When carrying out a study, the researcher determines the population size according to the study goals. In this example, individuals inhabiting each pong can be considered isolated populations.
You can learn more about populations at
https://brainly.com/question/26643620
#SPJ1
Select the statement that is true. (1 point)
Thymine is only present in DNA, while cytosine is only present in RNA
Translation copies DNA to mRNA, while transcription converts mRNA into proteins.
DNA and RNA are both double-stranded.
DNA has the sugar deoxyribose, while RNA has the sugar ribose.
Answers
Answer:
DNA has the sugar deoxyribose, while RNA has the sugar ribose.
Explanation:
Just took test
How Cells make proteins quick check 100%
Explanation:
1. Uracil pairs with adenine
2. Prevents blood clotting
3. TCA
4. DNA has the sugar deoxyribose, while RNA has the sugar ribose.
5. tRNA carries amino acids to the ribosome and helps form proteins.
Have nice day :P
How does an
enzyme speed up a chemical
reaction?
Answers
Answer:
By lowering the activation energy
Explanation:
Enzymes are biological catalysts. Catalysts reduce the activation energy for reactions. The lower the activation energy for a reaction, the quicker the rate. Common enzymes convert shape when substrates unite. Enzymes lower the activation energy required to turn a reactant into a product. Consequently, an enzyme-catalyzed reaction pathway has a smaller energy activation to succeed ere the reaction can progress. Therefore, enzymes speed up reactions by lowering the activation energy.
Compensation depth is always below the _____.
a. depth of light penetration
b. depth of greatest productivity
c. aphotic zone
d. intermediate bottom waters
e. oxygen minimum zone
Answers
Which option is not a response to internal stimuil
Answers
The option that is not a response to an internal stimuli would be wearing sunglasses to protect eyes from UV rays.
In all the other options, the person who does a certain action also gets a feedback from his body which urges him to do that particular action.
Option D is correct.
What is internal stimuli?A stimulus is anything that can trigger a physical or behavioral change an example being the vital signs changing due to a change in the body.
Other examples of internal stimuli includes:
a. eating when hungry
b. breathing hard when exercising because of a drop in oxygen levels
c. drinking when thirsty
Learn more about internal stimuli at:
https://brainly.com/question/25303355
#SPJ1
Complete question:
Which of these is not a response to internal stimuli?
a. eating when hungry
b. breathing hard when exercising because of a drop in oxygen levels
c. drinking when thirsty
d. wearing sunglasses to protect eyes from UV rays
do not allow the cell to pass onto the next phase of the cell if abnormalities are present
Answers
The cell cycle is a process that describes the cell division into two identical daughter cells. It is made up of four phases: G1, S, G2, and M.
Cells have strict regulatory mechanisms that monitor and regulate the cell cycle to ensure its proper functioning. The G1 checkpoint is the first point in the cell cycle that is regulated. The cell is prevented from entering the S phase of the cell cycle if any anomalies are present. The cell cycle is disrupted if there are any DNA damages or abnormalities, and it can cause the cell to undergo apoptosis, or programmed cell death.
Cells have a mechanism known as a checkpoint mechanism that ensures that the cycle progresses in an orderly manner. The G1 checkpoint occurs during the G1 phase of the cell cycle, and its function is to prevent cells with any genetic abnormalities from entering the S phase of the cell cycle. The S phase is the phase in which DNA replication occurs. This is a critical phase because mutations or genetic abnormalities that occur during replication can be carried forward to the daughter cells.
The G1 checkpoint checks for DNA damage, missing nutrients, and cell size, among other things, before allowing the cell to enter the S phase of the cell cycle. If any abnormalities are detected, the checkpoint will halt the cell cycle to allow time for repair or apoptosis.
learn more about cell cycle here
https://brainly.com/question/5034994
#SPJ11
What is an obligate anaerobe? How do obligate anaerobe like Bacteria C get energy?
Answers
Answer:
What is an obligate anaerobe?: An organism, such as a bacterium, that can live only in the absence of oxygen.
How do obligate anaerobe like Bacteria C get energy?: Obligate anaerobes metabolise energy by anaerobic respiration or fermentation. In aerobic respiration, the pyruvate generated from glycolysis is converted to acetyl-CoA. This is then broken down via the TCA cycle and electron transport chain.
Love, gocry
What is the thin, whitish skin layer on the top of bones called?
1. periosteum
2. bone marrow
3. hard bone
4. compact bone
Answers
Answer:
The answer is periosteum
Explanation:
I dont really have an explanation i had this wuestion and just guessed an got it right
Answer:
periosteum is correct to the person above
Explanation:
Explain how cellular respiration is important for the production of ATP build on aerobic vs anaerobic
Answers
Answer and Explanation:
ATP is the energy molecule of the organism, being necessary for all cellular processes. It is produced in both aerobic and anaerobic respiration, but the processes are different.
Aerobic respiration, ATP is produced by breaking down the glucose molecule found in the food we consume. This process occurs in all organisms that need the presence of oxygen to survive. However, this is a complex process that occurs with the help of several enzymes and co-enzymes that perform various oxidation reactions on the glucose molecule, transforming it into carbon dioxide, water and ATP.
Anaerobic respiration is also known as fermentation and occurs in all organisms that cannot survive in the presence of oxygen. This process also occurs with the help of enzymes and coezimas, where the glucose molecule is degraded until it becomes two molecules of pyruvate. During the pyruvate degradation reactions, an ADP molecule is released, which will later be added to a phosphate molecule that is free in the cytosol, becoming ATP.
Plz I really need help I don’t know what to write
Kai has a see-through glass tank with air, plants, and animals that eat
those plants. He sealed the tank so no material can get into or out of it,
but light can get in when the tank is not covered.
The light for the tank has been on all day, and Kai measured the carbon
in the air and found that it is decreasing. How is carbon moving between
the air and the living things in
the tank? What is happening to the amount
of carbon in living things?
Just tell me those two questions plz help me I will give you my points I swear plz help me I beg you
Answers
The amount of carbon is captured by plants to perform photosynthesis as a light for the tank has been on all day and prepare their own food. The product of photosynthesis is consumed by other organisms to perform cellular respiration.
What are the components of photosynthesis?The components of photosynthesis may include carbon dioxide, water, and sunlight as raw materials to convert into glucose (a food molecule).
The amount of carbon will not remain the same for the entire time in the living organism. The cycling of carbon is processed synergistically during photosynthesis and cellular respiration.
Living things in the tank respire out carbon, which is taken up by plants for photosynthesis, a product of photosynthesis are the reactants for cellular respiration. In this way, carbon delocalized among the living entities.
Therefore, it is well described above.
To learn more about Cellular respiration, refer to the link:
https://brainly.com/question/2809259
#SPJ2
What is the plant cell organism?
Answers
Answer:
Explanation:
Plant cells are the basic unit of life in organisms of the kingdom Plantae. They are eukaryotic cells, which have a true nucleus along with specialized structures called organelles that carry out different functions. Plant cells have special organelles called chloroplasts, which create sugars via photosynthesis.
Answer:
Plant cells are the basic unit of life in organisms of the kingdom Plantae. They are eukaryotic cells, which have a true nucleus along with specialized structures called organelles that carry out different functions. Plant cells have special organelles called chloroplasts, which create sugars via photosynthesis.
Explanation:
Will give BRAINLIEST and points! :)
What is a SYNONYM and ANTONYM for the term MASS in the sense that mass means the amount of matter within an object.
Answers
Answer:
Synonym: weight, size, magnitude.
Antonym: Smallness
atus
am
What are consumers known as?
Answers
Answer:
Like sea angels, they take in organic molecules by consuming other organisms, so they are commonly called consumers. Heterotrophs can be classified by what they usually eat as herbivores, carnivores, omnivores, or decomposers.
Explanation:
Brainliest please? It would really help me out!
Which strophic level does a fish represent in this food chain?
Algae->mosquito larva->dragonfly->fish->man
Answers
Answer:
Secondary consumer/small carnivore
Explanation:
The fish is eaten by the top of the food chain/tertiary consumer (human) and eats primary consumers/herbivore (dragonfly), which means it is the secondary consumer on the food chain.
Which of the following organisms cannot create their own food?
O Plants such as grasses
O Protists such as algae
O Animals such as humans
O Plants such as trees
Answers
Answer:
animals such as humans
Explanation:
Answer:
animals such as humans
Explanation:
mark me brainliest!!!!
An anatomist needs to cut a skull open with a transverse cut. Which of the diagrams correctly shows how the cut should appear?
PLZ HALP ASAP
Answers
The transverse plane or axial plane (also called the horizontal plane or transaxial plane) is an imaginary plane that divides the body or a body part into superior and inferior parts.
It passes through the middle of the body/body part and divides it horizontally in an upper and lower half.
The current answer would be C.
I took the test I am 100% positive this is the answer
An area of land with a defined border and a sovereign government is a
Answers
Answer:
Should be a State.
In a rainforest, there are trees of different sizes as shown in the figure below.
The trees in the UNDERGROWTH layer will probably face competition for which of the following resources?
a. Air
b. Water
c. Animals
d. Sunlight
Answers
Select all the correct answers.
Jordan's grandmother uses the juice from squeezed lemons to remove stains from his shirt. He hypothesizes that the juice is the only part of the lemon that is effective at removing the stains, because it’s an acid. Which two steps would help Jordan determine whether his hypothesis is scientifically supported?
He should test the acidity of different parts of the lemon, including the juice, pulp, and skin.
He should conduct an opinion poll of residents to see if they agree with his hypothesis.
He should make identical stains on T-shirts and see whether different parts of the lemon will remove the stain.
He should find literature on housekeeping websites that support the use of lemon juice at removing stains.
He should compare lemon juice with other acidic juices to see if they all remove stains.
Answers
1.He should assess the acidity of the lemon's juice, pulp, and skin, among other lemon-related parts. 2. He should try different lemon pieces to see if they can remove identical stains from T-shirts.
What brings on acidity?When the valve muscle just at lower end if your esophagus relaxes unexpectedly, acid reflux results, causing stomach acid to back into the esophagus. Together with other symptoms and indicators, this may result in heartburn. GERD can be brought on by frequent or ongoing reflux.
What counteracts acidity?To establish balance, add either sugar or fat to tame the sourness of an overly acidic food.
To know more about acidity visit:
https://brainly.com/question/11543614
#SPJ1
PLEASE HELPP!! :)))))
Summarize each stage of mitosis (prophase, metaphase, anaphase, telophase)
Answers
During prophase, the chromosomes shorten and thicken. Chromosomes align in the cell's middle during metaphase. During anaphase, chromatids split apart at the centromere and go to opposing poles. After each chromosomal group's nuclear envelopes have been rebuilt, the telophase is when two nuclei are formed.
What is the anaphase of mitosis?The duplicated genetic information found in a parent cell's nucleus is divided into two identical daughter cells during the fourth stage of mitosis, referred to as anaphase.
During telophase, the chromosomes begin to decondense, the spindle disintegrates, and the nuclear membranes and nucleoli reorganize. Each of the two daughter cells produced by the mother cell's cytoplasm splitting contains the same amount and kind of chromosomes.
Various chromosomes are frequently scattered all across the cell nucleus. While the cell's nucleus disintegrates during metaphase, the chromosomes of the cell condense and move near one another, aligning in the middle of the dividing cell.
Learn more about mitosis refer
https://brainly.com/question/19058180
#SPJ1
Glucose is actually formed in photosynthesis when two molecules are joined together. These two molecules
are what?
Answers
Answer:
Carbon dioxide and water
Explanation:
The equation for photosynthesis is Carbon dioxide + water ⇒ Glucose + oxygen. The reactants are the molecules that get joined together to make glucose
John and Jane are both heterozygous and have brown eyes. Blue eye alleles are recessive and brown eye alleles are dominant. What is the probability their child will have blue eyes?
Answers
There is a 25% chance that John and Jane's child will have blue eyes and a 75% chance that their child will have brown eyes.
John and Jane each have a dominant brown eye allele and a recessive blue eye allele, represented as B and b, respectively. Heterozygous individuals, like John and Jane, have a combination of dominant and recessive alleles and express the dominant trait. Therefore, they both have brown eyes.
When they have a child, each parent will contribute one allele to the offspring, giving them a 50% chance of inheriting either B or b from each parent. The probability of their child having blue eyes is determined by the combination of alleles they inherit from their parents.
If their child inherits two blue-eye alleles (bb), they will have blue eyes. The probability of this happening is (1/2) x (1/2) = 1/4 or 25%. If their child inherits one blue eye allele and one brown eye allele (Bb), they will have brown eyes because brown is dominant. The probability of this happening is 2 x (1/2) x (1/2) = 1/2 or 50%.
To learn more about eye alleles
https://brainly.com/question/8221717
#SPJ4
which of the following is not used to categorize viruses into different groupings? multiple choice question. ribosome type capsid structure genome type envelope
Answers
Option A) Ribosome type is not used to categorize viruses into different groups.
Ribosomes are cellular structures involved in protein synthesis and are not used to categorize viruses. The other options - capsid structure, genome type, and envelope - are commonly used to classify viruses into different groups based on their physical and genetic characteristics.
Ribosome type is not used to categorize viruses into different groupings. Viruses are classified based on several factors, including capsid structure, genome type, and presence or absence of an envelope.
On the other hand, ribosome type refers to the type of ribosomes present in cells, which is not directly relevant to categorizing viruses. Ribosomes are cellular structures involved in protein synthesis and are not specific to viruses.
Therefore, ribosome type is not used as a criterion to categorize viruses into different groupings.
To know more about ribosomes:
https://brainly.com/question/8773679
#SPJ11
When we talk about soil depletion, which soil horizon is affected?
Answers
Answer:
surface horizon (A)
Explanation:
What are the example of aerial stem modification.
Answers
Aerial stem structures that undergo modifications to perform these special functions include tendrils, thorns, hooks, phylloclade, tuberous stems and bulbils.
Aerial stem modifications are modifications to the aerial stems, vegetative buds and floral buds of plants growing in different conditions and which perform functions such as climbing, protection, synthesis of food, or vegetative propagation.
what class of macromolecule consumes the most energy for biosynthesis?
Answers
The class of macromolecules that consumes the most energy for biosynthesis are proteins. Proteins are composed of long chains of amino acids, which require energy to be synthesized and assembled in the correct order.
The process of protein synthesis, also known as translation, involves the use of ATP (adenosine triphosphate), which is the primary energy currency of cells. ATP is required for the activation of amino acids, which enables them to be linked together to form a polypeptide chain. Additionally, ATP is also required for the translocation of the ribosome, which is the molecular machine that reads the genetic code and links the amino acids together.The energy requirement for protein biosynthesis is further increased by the fact that proteins must be folded into their correct three-dimensional structure. This process, known as protein folding, is facilitated by chaperone proteins, which also require ATP for their activity. Furthermore, post-translational modifications such as phosphorylation and glycosylation, which are common in many proteins, also require ATP.In summary, the biosynthesis of proteins consumes the most energy among the different classes of macromolecules due to the complex processes involved, including the activation of amino acids, ribosome translocation, protein folding, chaperone activity, and post-translational modifications.For more such question on macromolecules
https://brainly.com/question/5246898
#SPJ11
Why is it hard to observe winter insects
Answers
Answer:
As the Earth warms overall, insects are shifting toward the poles to colonize areas that are warmer than before in the summer months. Yet many of these insects lack the ability to survive the colder winters found in these regions. ... As the days stay warmer later into the fall, insects' bodies get confused.
Explanation:
Please help thank you :)
Answers
Answer:
i think it is a
Explanation: