Answer:
D. a reactant that is catalyzed by an enzyme
Explanation:
A substrate is a reactant that is catalyzed by an enzyme. Therefore, the correct statement is option D.
What is a catalyst?A substrate is a reactant molecule that binds to the active site of an enzyme and the enzyme then chemically transforms the substrate through a series of catalytic reactions.
Enzymes are the catalysts that are used to increase the rate of biochemical reactions by lowering down the activation energy that is required for the reaction to occur. The substrate when binds to the active site of the enzyme, it forms an enzyme-substrate complex followed by its conversion into one or more products. When the product is formed, enzyme gets released from the product.
A catalyst is a substance which is used to lower down the activation energy required by the reaction, thereby, increasing the reaction rate to form a product.
Therefore, substrate is a reactant that is catalyzed by an enzyme.
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Nucleotide are composed of phosphate group, a sugar , and a nitrogenous base. DNA is made up of long strands of nucleotide. which part if the above molecule can differ between nucleotide?
A- The Sugar
B- The Phosphate Group
C- The Nitrogenous Base
D- The Sugar and Phosphate Group
Answer:
C
Explanation:
The nitrogenous base can change
5 points
Transmembrane proteins span the width of the cell membranes. Four types of transmembrane proteins are shown in a section of cell membrane.
groene
Although these proteins have different specific functions, they all-
A-stop chemical reactions within the cell
B-synthesize molecules that signal other cells
C- help the cell interact with its external environment
D- remove large waste particles from the cytoplasm of the cell
Answer:
C. help the cell interact with its external environment
Explanation:
A transmembrane protein (TP) is a type of integral membrane protein that spans the entirety of the cell membrane. Many transmembrane proteins function as gateways to permit the transport of specific substances across the membrane.
Although transmembrane proteins have different specific functions, they always HELP the cell interact with its external environment.
Transmembrane proteins are a broad category of membrane proteins that act as carriers and/or transporters in order to allow the movement of specific substances across cell membranes.
After binding to their specific ligands, the three-dimensional (3D) shape of transmembrane proteins changes in order to allow the movement of molecules and ions through the cell membrane.
For example, aquaporins are a type of transmembrane protein that regulates the entry of water (H2O) molecules into and out of cells.
In conclusion, although transmembrane proteins have different specific functions, they always HELP the cell interact with its external environment.
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True or false:
This is for science and I only have one more question but it's getting me stuck: if you get this right I'll vote you brainiest!:)
If a gene sequence changes, the proteins associated with that gene could likewise
be affected. True/False
Answer:
True
Explanation:
Natasha is looking for a material to make tires for a new jogging stroller she designed. Which would be best suited to her product?
Answer:
vulcanized rubber
Explanation:
The best material for this purpose is vulcanized rubber. Jogging strollers have wider bases and larger wheels to stabilize them, and these wheels must be durable in order to withstand the stresses introduced during the high speed movement.
Answer:
Vulcanized rubber
Explanation:
Just took the test and go it right
8
An ocean food chain is shown below. Which organisms represent the trophic level
containing approximately 1% of the initial amount of solar energy (1000Kcal) acquired by
the phytoplankton?
2
Humans
Copepods!
Herring
Phytoplankton
Sand eels
OOOO
herring
humans
sand eels
copepods
Answer:
copepoda show the initial 1% amount of solar energy acquired by the phytoplankton
What factor has the greatest impact on an enzyme?
Answer: Higher Classifications: Protein
Explanation:
Collectively, these are the most important properties of the enzyme. There are several factors that affect the speed of an enzyme's action, such as the concentration of the enzyme, the concentration of the substrate, temperature, hydrogen ion concentration (pH), and the presence of inhibitors.
Microfilaments, intermediate filaments, and microtubules collectively
ake up what part of the cell? *
A.) cytoskeleton
B.) nuclear envelope
C.) chromatin
D.) nucleus
What do you think would happen to a shell-less ("naked") egg if water passed through the membrane
Answer:
Explanation:
I think it will wash out the yolk and something else out
what is the difference between the physical layers and the composition layers
Answer:
The Earth has different compositional and mechanical layers. Compositional layers are determined by their components, while mechanical layers are determined by their physical properties. The outermost solid layer of a rocky planet or natural satellite.
Explanation:
Which best explains why the sun maintains its size and shape?
A. Pressure caused by high temperatures are balanced by gravity.
B. The sun burns from its core to its surface.
о
C. Forces exerted by orbiting planets cause the sun to rotate.
Answer:
A
Explanation:
The Suns own weight keeps itself together and keeps its size and shape. all things have gravity. in this case, the sun keeps it shape with balancing its gravity with the pressure.
The best explanation of why the sun maintains its size and shape is forces exerted by orbiting planets cause the sun to rotate. The correct option is C.
What is orbiting?"Orbiting" is one of those digital dating terms that perfectly describes what many of us have experienced but didn't realize had a name. It's when someone you were dating tells you they're no longer interested but keeps in touch with you on social media.
The Sun's own weight holds it together and maintains its size and shape. Everything has gravity. In this example, the sun maintains its shape by balancing gravity and pressure.
Planets orbit the sun in elliptical orbits, with the sun slightly off-center of each ellipse.
Therefore, the correct option is C. Forces exerted by orbiting planets cause the sun to rotate.
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What does DNA provide the code for?
A nitrogenous base pairing
B protein synthesis
C deoxyribose formation
D nucleotide synthesis
answer is protein synthesis
Answer:
protein synthesis
Explanation:
DNA provides the code for protein synthesis. This DNA code consists of the instructions needed to make proteins and molecules which are essential for our growth, development, and health.
Describe a car’s velocity as it goes around a track at a
constant speed.
Answer:
If the car is going at a constant speed then the velocity isn't changing, only the direction of velocity.
Where does the waste material in the body come from and why does the body need to get rid of these waste materials? Please help me!
Answer:
These waste materials are excreted out by the process of diffusion through general body surface. The removal of waste will help prevent the body from becoming ill, it will help clean the body inside and out, and will protect the body from infections.
Explanation:
3 examples of situations where a force is a nuisance
Answer:
getting shoved
getting hit
stubbing your toe
Explanation:
Which of the following processes occurs before cellular respiration?
A) glycolysis
B) fermentation
C) ATP conversion
D) cellular respiration
Which occurs during digestion?
O The mouth only allows for physical digestion,
O The mouth only allows for chemical digestion.
O Chemical digestion prepares the food for physical digestion.
O Physical digestion prepares the food for chemical digestion.
Answer:
D
Explanation:
took test
Answer:
d
Explanation:
more - English Practice Book - 6
j: (Sipping his tea). What about your family?
There are three subatomic particles found inside atoms. Two of the subatomic particle have a charge of positive or negative. The one particle that does NOT have a charge is the:
Question 2 options:
proton
neutron
electron
none of the above
Answer:
neutron
Explanation:
This is for K12 right if so I took this quiz and got a 100% on it
Guys I need help
Please it DUES TODAY please
GUYS IT SOOOOOO HARD
Answer:
the pod splits, the cherry's bright red attracts animals to eat it and the last one is called a Bur
Explanation:
The table compares prokaryotes, plant cells, and animal cells
Complete the table.
Present
Absent
Structure
Prokaryotes
Plant cell
Animal cell
Nucleus
Present
Cell Wall
Absent
Mitochondria
Absent
Chloroplasts
Absent
Answer:
Structure Cell 1 Cell 2
DNA Located in cytoplasm Located in nucleus
Cell membrane Present Present
Cell wall Present Absent
Mitochondria Absent Present
Ribosomes Present Present
Explanation:
Answer:
Nucleus : Absent Present Present
Cell Wall: Present Present Absent
Mitochondria: Absent Present Present
Chloroplasts: Absent Present Absent
Hope This Helps
- Greg
Orange trees planted in a grove or orchard would most likely fall in which category of population distribution?
a.even
b.random
c.clumped
d. density
Answer:
A) Even
Explanation:
got it right on edge :)
Orange trees planted in a grove or orchard would most likely fall in the even category of population distribution. The correct option is a.
What is population distribution?Population distribution is how the population of something, plants, animals, or humans is distributed in specific areas. It specifies where people live or where they are not living.
There are three types of population distribution:
Uniform dispersion - In this distribution, the population is uniformly or evenly distributed in the areas. Even distribution comes under this distribution.Random dispersion - there are no predictable patterns in this dispersion. They are randomly present anywhere.Clumped dispersion - This distribution shows the bunch or group of population is areas then there is no population, and then there is a a bunch of population in another place.Thus, the correct option is a. even.
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please help me on this
Answer:
secondary succesion
Explanation:
Answer:
its
primary succession
i hope the answer was helpful
During the replication process, which enzyme(s) unwind(s) the double-stranded DNA?
DNA polymerase
DNA gyrase and topoisomerase
DNA primase and helicase
DNA ligase
Answer:
The correct answer would be C) DNA primase and helicase
Explanation:
DNA primase and helicase unzip and uncoil a small portion of the double-stranded DNA, creating what is often called the replication fork.
Ignore the top answer, its wrong. I took the test.
Answer: The correct answer is DNA primase and helicase
Explanation:
I took the test
Helpppp for forensic science I need to know what a cup would be classified as evidence wise. options biological, physical, impression or trace evidence.
Answer:
Options biological
Explanation:
There are traces in a cup where human dna can be found
Is the following equation balanced or unbalanced?
AlBr₃ + 3K → 3KBr + Al
Answer:
Yes it is.
Explanation:
There are 3 Potassium, 1 Aluminum, and 3 Bromide atoms on the reactants and products of this single displacement equation.
An example of mitosis at work is a leaf...
turning yellow.
growing.
taking in carbon dioxide.
performing photosynthesis.
Answer:
growing
Explanation:
bc back earlier in the chapter it said growing reproducing and healing is all part of mitosis
An example of mitosis at work is a leaf growing which is denoted as option B.
What is Mitosis?
This is the type of cell division in which parent cells give rise to two identical daughter cells.
This cell division is common during growth and in the replacement of worn out tissues in organisms.
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1. What is exponential growth?
Answer:
Exponential growth is the rapid growth of biological organisms. This usually happens when the amount of resources is unlimited in a habitat, therefore creating more and more organisms which increases population.
hope this helps :)
Explanation:
Many processes occur in the digestive system .which process is best classified as a physical change
Answer:
This question lacks options, the options are:
A) Saliva converting the starch molecules in crackers into simple sugars
B) Digestive enzymes breaking down proteins into smaller fragments
C) bacteria converting lactose into simple sugars in the intestines
D) teeth grinding an almond into smaller pieces in the mouth
The answer is D
Explanation:
A physical change is a change that occurs to a substance without altering its chemical composition. A physical change involved a change in the substance's shape, texture, color, state etc. but not the chemical content of such substances.
In this question involving the processes that occur in digestion, a typical example of physical change is "teeth grinding an almond into smaller pieces in the mouth" because the teeth only changes the shape and texture of the almond. It does not affect the chemical composition of the almond fruit. This is also called mechanical digestion.
Note that, other options involving digestive enzymes breakdown are chemical changes because the enzymes breakdown the chemical components of each substance.
Answer: D
Explanation: because you are breaking down food in a physical change
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How is a hybrid different from its originating crops?
A hybrid crop is different from the original crops as they contain genes from other crops that are beneficial for them.
A hybrid has the genetic makeup of both of its parent crops but may have completely distinct external characteristics. This is due to the fact that two recessive genes from both parent crops can be fused together to create an outward visible impact in the hybrid.
Hybrid plants are the result of the cross-pollination of two plant varieties and the propagation of the seed resulting from the mix. The plant that emerges from this seed combination is known as a hybrid plant.
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