Answer:
A
Explanation:
because a enzyme simply speeds up a reaction and only does that by pressure and stress not by doing chemical changes
The statement which best explains the importance of enzymes lowering the activation energy necessary for chemical reactions to take place is: A. Reactions that require less energy to begin are able to occur more quickly.
A chemical reaction can be defined as a chemical process which mainly involves the continuous transformation or rearrangement of the ionic, atomic or molecular structure of a chemical element through a break down and formation of chemical bonds, in order to produce a new chemical compound.
As a general rule, the activation energy of a chemical reaction must first of all be reached by its combining chemical elements (reactants) before it can start or begin.
An enzyme can be defined as a biological catalyst that is used to speed up (increase) or catalyze (accelerate) the rate of a chemical reaction, by lowering (decreasing) the activation energy of its constituent chemical elements (reactants).
Hence, a chemical reaction that only require less energy to begin (start) are able to occur more quickly before those that require high energy.
In conclusion, the activation energy of a chemical reaction should be lowered in order for it to occur or take place fast (quickly) enough over a short period of time.
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blood enters on the left side of the heart through the_____ and enters the left atrium. Then passes through the_____ to enter the left ventricle 
Blood enters on the left side of the heart through the pulmonary veins and enters the left atrium. Then passes to the mitral(bicuspid valve) to enter the left ventricle.
Blood is a fluid component of the circulatory system that is very vital for transporting oxygen and nutrients in the body system. It comprises cells suspended in plasma.
The correct answers for the blanks are:
Blank 1: Pulmonary veinsBlank 2: Bicuspid valveThe blanks can be explained as:
The left side of the heart has an atrium that gets the oxygenated blood from the lungs through the pulmonary veins.Oxygenated blood from the left atrium flows to the left ventricle.Blood from the left ventricle flows to the aorta that distributes the oxygenated blood to the body parts.To learn more about the path of the circulatory system follow the link:
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I WILL MARK BRAINLIEST PLEASE HELP!
1. Tell me if this is true or false. If it is false tell me why. "Cereal grains are an excellent
source of complex proteins."
Answer:
True
Explanation:
The most common cereal grains that are used is wheat, rice, oats, and corn. WHich can all be high in a protein called prolamins, including vitamin D&E, fiber, iron, and other nutrients.
1. Which is the correct order of the stages of the cell cycle? *
Cytokinesis, Mitosis, Interphase.
Cytokinesis, Interphase, Mitosis
Mitosis, Cytokinesis, Interphase
Interphase, Mitosis, Cytokinesis
my best guess would be
→ Interphase, Mitosis, Cytokinesis ←
Explanation:Interphase - stage where the cell prepares for Mitosis. During this stage the cell grows and replicates DNA.
Mitosis - part where the chromosomes are separated and are separated into 2 nuclei.
Cytokinesis - part where cells officially splits into two daughter cells.
Cell cycles are events that involve various series of steps for the cell to grow. It follows the order of interphase, mitosis, and cytokinesis. Thus, option D is correct.
What is the cell cycle?The cell cycle is an important part of the growth and cell division of the eukaryotic cell. It includes interphase comprising the G₁, S (synthesis/replication), and G₂ phase, mitotic phase, followed by cytokinesis and G₀ phase.
The cell spends the majority of its time in interphase where the genetic material undergoes preparations and gets duplicated for the further process. In mitotic division the actual division of the organelles and the nucleic acid takes place.
Mitosis is followed by cytokinesis where the cytoplasm of the cell gets separated to form two daughter cells after the telophase stage. The cell then undergoes the G₀ phase which is the quiescent stage of the cell division where no cell division occurs.
Therefore, option D. interphase, mitosis, and cytokinesis are the correct order of the cell cycle.
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HELP PLS
1st to answer gets brainliest
Why do plants need a transport system?
Why should substances be moved in plants?
Which are the substances that need to be moved?
How does a transport system in a plant function?
Where is food or sugar made in plants?
How do sugar molecules move to different parts of a plant?
Answer:
The transport of food is necessary because every part of a plant needs food for:
Energy
Building its parts
Maintaining its life
Explanation:
HELPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP
I-cell wall
III-chloroplast
IV-vacuole
three structures specific to the plant cell
Cell organelles have different functions that help maintain homeostasis within the
cell. The processes of photosynthesis and cellular respiration depend on these
organelles working properly. Identify the letter of the organelle whose function is to
store water and dissolved salts?
The function of the vacuole is to maintain the turgid pressure that is to maintain the cell turgidity. It stores water along with the dissolved salts in it. The answer is option B.
What are the other parts that are present in the structure of vacuole ?There are various enzymes that are present in the vacuoles and it is just like the pool of the plant cell which stores the various enzymes along with the water molecules and the dissolved salts.
With its roles that perform or help in the plant cell function that are the central vacuole which stores salts, minerals as well as nutrients, along with proteins and pigments that helps in the plant growth and plays important structural kind of role for plant. The organelle that is the central vacuole of plant cells that helps it to just maintain the volume along with the structure.
Vacuoles store the materials like water along with salts and proteins as well as the carbohydrates. Most of the plant cells that are having a single or the large central vacuole. The function of them is that they just store the salts with the sugars with few type of proteins and even the plant colors. They are even working as the storage bags for cell.
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GIVING BRAINLIEST POINTS!! Please help meeeeee
Answer:
if its a standardized test and you don't know click c
Explanation:
the most common answer on standardized tests is c
Trees that lose their leaves during winter are called
A. Deciduous
B. Fern
C. Herbacious
D. Woody
E. Evergreen
Answer:
a. deciduous
Explanation:
hope this helps :) have a great day.
Queen Latifah had success in which of the following professions?
Answer:
The answer is All of the above.
Explanation:
hope this helps!
Queen Latifah is known for having a successful career as an actress, a rapper, and a spokesmodel.
Who is Queen Latifah
Queen Latifah is the stage name for the American actress, rapper, and spokesmodel known as Dana Elaine Owens.
She starred in several movie roles to emerge as one of the most successful actresses in America with different awards to show for it. Some of the movies she starred in include Living Single, Bringing Down the House, Barbershop 2, etc.
She also has several music albums such as All Hail the Queen, Black Reign, etc.
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Andrea divided a group of a species of insect she found in her backyard into two groups based on antenna size. The insects with short antennae produced offspring with short antennae. The insects with long antennae produced offspring with long antennae and short antennae. Which of the following statements is most likely true?
A
The gene for short antennae is recessive and the gene for long antennae is dominant.
B
Length of antennae is random.
C
The gene for short antennae is dominant and the gene for long antennae is recessive.
D
Length of antennae is not a hereditary characteristic.
Answer:
......mm..............
What occurs after cytokinesis is completed?
O The cell begins to replicate its DNA
OThe cell organizes its microtubules
O The cell enters G1
O The cell enters G2
??
Select all the correct answers.
Alfred has a golden retriever named Max. Max can recognize people from their smell. Max starts to bark and wag his tail when Alfred reaches the gate of his house, even though Max is 50 yards away in his kennel. What are the reasons for Max’s ability to smell so well?
Dogs have more olfactory receptors in their noses, allowing them to identify people by their smell.
Dogs have highly sensitive olfactory receptors, allowing them to distinguish a person’s unique odor.
Dogs have better eyesight than humans, allowing them to see faraway objects.
Dogs have an extended nervous system, allowing them to detect even the slightest movement in humans.
Dogs have connected optic and olfactory systems, allowing them such precision in smell.
Answer:
A and B.
Explanation:
Answer:
A and B
I hope this helps
Will mark brainliest if you get this right! What is this?
a black hole?? (if not then welp-)
Where did the plant get the energy it needs to grow? What materials are needed for
growth and where did they come from?
Answer:
It's simple really—plants get the materials they need to grow cheifly from air and water! Sunlight provides the energy plants need to convert water and carbon dioxide (CO2), a major component in air, to carbohydrates, such as sugars, in a process called photosynthesis. Hope this is what your looking for!
Explanation:
Brainliest please?
Asexual reproduction (Mitosis) involves only one parent. The offspring of this type of reproduction have?
Answer:
The offspring of Mitosis will be identical daughter cells because there is only one set of DNA they can get from the parent.
Explanation:
Which factor is the strongest internal influence on one’s feelings and behavior regarding drugs?
personal feelings
the behavior of friends
the behavior of admired celebrities
environmental and family stresses
Answer:
personal feelings
Explanation:
personal feelings
The factor is the strongest internal influence on one’s feelings and behavior regarding drugs is personal feelings.
What does it mean to be influenced internally?Since they come from you, internal factors are ones that you can influence. Your thoughts and emotions affect internal factors. These might be advantageous or harmful. Positive thoughts will help you make decisions while negative ones will likely hinder you.
Internal factors include aspirations, preferences, moral standards, and perceptions of societal norms. Community members, family, cultural practices, friends, the media, and technology are examples of external influences.
Primary emotions are those that cannot be reduced to more fundamental feelings but can be combined to create other emotions. These include fear, wrath, humiliation, contempt, disgust, guilt, discomfort, interest, surprise, and joy.
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If a cell has 2% sugar inside of the cell, and is placed into a solution with 12% sugar, in which direction will the water mostly travel?
Answer:
outside of the cell do to the concentration gradient
Explanation:
1.- How does photosynthesis contribute to the survival of humans?
2.- Explain the effect cyanobacteria had on the early atmosphere of Earth and the evolution of life?
3.- Suppose chromosomes in skin cells are damaged by ultraviolet radiation. If the damaged gene does not affect the cell cycle, do you think the cell will become cancerous?
4.- How is mitosis involved in the healing of a wound?
5.- How is the cell cycle-related to the growth and maintenance of an organism?
6.- What role does differentiation play in the cell cycle?
7.- Explain the connection between the cell cycle and cancer development?
8.- Must the cell cycle always proceed in the same direction, or is it possible for the cell cycle to proceed in the opposite direction? Explain your reasoning.
9.- Explain how crossing over provides evidence to support the claim that meiosis increases genetic variation.
10.- Why is it important that human gametes have half a set of DNA instead of a full set of DNA?
11.- In what ways is ATP like a fully charged battery?
Answer: By storing carbon above and below the ground, the trees and plants in forests contribute to the production of oxygen as a byproduct of photosynthesis. ... Photosynthesis provides most of the oxygen that humans and animals breathe.
ILL GIVE BRANILIST PLEASE HELP
What do chemotherapy and radiation have in common?
a. Both affect healthy cells in addition to cancer cells
b. Both use drugs
c. Both use high-energy waves
d. Both affect only cancer cells
Answer:
I’m not sure if both do the rest but A. is right so ig A.
CDC recommendations on antibiotic use include...
•stop taking the antibiotic after you start feeling better
•take all of your prescribed antibiotic regardless of how you are feeling
Explanation:
the second choice. even if you are feeling better the bacteria may still be there. if you stop taking the antibiotics the bacteria will mutate and become stronger and more immune to the original antibiotics. this could end up deadly
Plz Help. Number 22.
Answer:
D, controlled by earths gravity
Explanation:
Which Protects plant and animal cells from outside agents
HELPP PLEASE THIS IS VERY IMPORTANTT: Scientists on a space shuttle mission studying plant growth would probably see that the plants on the space shuttle do not grow in the same direction and pattern as those on Earth. Scientists working in space would MOST LIKELY be studying the effects of which of the following stimuli on plant growth?
A) gravity
B) oxygen
C) radiation
D) temperature
Answer #12 Plz 10 pts
Answer:
3rd one
Explanation:
Cell > Tissue > Stomach > digestive system!
As a star goes through this cycle their _____ changes.
A - luminosity
B - brightness
C - all of these
D - temperature
Answer:
option C. all of these.
Explanation:
The main sequence period is when a star will experience the majority of its life. Helium is currently being created via nuclear fusion from hydrogen. Thus, option C is correct.
What is a complete cycle of a particular star?The main sequence phase, which our Sun is in, will be entered by the star if it is large enough to fuse hydrogen atoms into helium.
The mass of a star determines its life span. The life cycle of an object decreases with increasing mass.
The amount of substance present in a star's nebula, the enormous cloud of gas and dust from which it emerged, determines the star's mass.
The temperature and pressure rise when the material compresses, just as they do during formation. The freshly created heat briefly overcomes the effect of gravity, pushing the star's outer layers outward.
Therefore, As a star goes through this cycle their luminosity, brightness, temperature changes.
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basic unit of a cell membrane
i’m confused is it a, b, c, or d
Answer: I think C, but I could be wrong...
A clear sign that a subduction zone occurs in the ocean is the existence of a ______________________. *
Answer:
Where two tectonic plates converge, if one or both of the plates is oceanic lithosphere, a subduction zone will form. An oceanic plate will sink back into the mantle. Remember, oceanic plates are formed from mantle material at midocean ridges.
what is a reproductive strategy?
Answer:
c
Explanation: