Answer
Enzymes are proteins, which have a specific 3D tertiary structure, with a specifically shaped active site. The active site can only bind one substrate to form an enzyme-substrate complex, so can therefore only catalyse one reaction.
2.
Consider this DNA nucleotide sequence:
ACG GTT CTA GAC
Which mutation will result in a frame shift?
A. substitution of T for the first A in the sequence
B. deletion of GTT from the sequence
C. insertion of C at the start of the sequence
D. substitution of ATA for ACG in the sequence
Answer:C insertion of C at the start of the sequence
Explanation:
Which situation would increase the fluidity of a
phospholipid bilayer?
A. decreasing the temperature
B. increasing the number of proteins
C. increasing the number of cholesterol molecules
D. increasing the number of unsaturated fatty acids
Answer:
C
Explanation:
Cholesterol molecules stay in between fatty acid tails preventing them from sticking together
The situation that would increase the fluidity of the phospholipid bilayer is increasing the number of cholesterol molecules. The correct option is C.
What is a phospholipid bilayer?A phospholipid bilayer is a layer around a cell. The cell membrane is composed of a bilayer of phospholipids. It contains fatty acids and alcohol.
Bilayers of phospholipids are essential parts of cell membranes. The lipid bilayer serves as a physical barrier to the entry and exit of molecules and ions from the cell. However, allowing the selective transit of specific substances into and out of cells is a crucial role of the cell membrane.
Cholesterol is present between fatty acid molecules and prevents them from sticking to each other.
Therefore, the correct option is C. increasing the number of cholesterol molecules.
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In terms of genetic composition, how similar are offspring produced by sexual reproduction to their parents? Write in 2 to 3 sentences.
Answer:
That Is is the Word is Sex The sex is the Same only way for if u have a Baby
Osmosis is a form of _________ that involves the movement of
Answer:
Osmosis is a form of passive transport that involves the movement of water or other solvents through a semi-permeable membrane into an area of higher solute concentration.
For example:
Plant root hairs absorb water from the ground. The roots have a higher solute concentration than soil which is why water flows into the roots.
What is the age of a meteorite if potassium-40 decayed from 80 g to 10 g? The half-life of potassium-40 is 1.3 billion years.
1.3 billion years
2.6 billion years
3.9 billion years
5.2 billion years
Answer: b
Explanation: i toook the test
Answer: C.
Explanation:
magine a white bug and a brown bug on a brown rock. Which bug do you think a bird would most likely try to catch? Explain your choice.
white
Explanation:
the white bug is lighter so the bird will most likely to go for it
The two variables in your spreadsheet are time (years) and temperature (degrees Celsius). Which is the
independent variable, and which is the dependent variable? Which variable belongs on the x-axis, and
which belongs on the y-axis? Explain your reasoning.
Answer:So, the temperature depends on the time. So, the temperature is dependent, and the time is independent. If you're looking at a graph, the independent variable is generally on the horizontal axis
Explanation:
As a result, the temperature changes with time. Therefore, while the time is independent, the temperature is dependent. The independent variable is often on the horizontal axis when viewing a graph. So the independent variable is on the x-axis and the dependent variable is on the y-axis..
What are variables?
Any attribute that can have varying values, such as height, age, temperature, or test results, is referred to be a variable in research. To assess the causality of links, researchers frequently modify or quantify independent and dependent variables in studies.
The cause is the independent variable. Its value is unaffected by other research factors.The effect is the dependent variable. Changes in the independent variable affect its value.
Therefore, the independent variable is on the x-axis and the dependent variable is on the y-axis
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3. Describe each one of the following types of fractures:
simple fracture
compound fracture
incomplete fracture
impact fracture
comminuted fracture
All living things are made of one or more organs? True or false
Answer: True
Explanation:
All living things are made of cells; the cell itself is the smallest fundamental unit of structure and function in living organisms. ... Organs are collections of tissues grouped together performing a common function. Organs are present not only in animals but also in plants.
A person with swollen gums rinses their mouth out with salt-water. Will this decrease the swelling or increase the swelling ? What will happen?
Answer:
I believe it would decrease the swelling. Salt water is good for swelling gum's.
Explanation:
The skin is the body's largest organ. It's made up of many different types of cells.
a. True
b. False
Imagine that you took a small population of A. cooki lizards and moved them to a new island that was heavily forested. Predict what would happen over time to the color of the dewlap in that population of lizards. Using your knowledge of natural selection and genetics, explain your prediction.
The lowest range of dissolved oxygen levels which will support a diverse population of organisms is:
The lowest range of dissolved oxygen levels which will support a diverse population of organisms is:
A. 2-3 ppm
B. 4-5 ppm
C. 6-7 ppm
D. 8-9 ppm
What do scientist use to determine the begining or end of a geologic time period?
mass extinctions
diversification of life
index fossils
supercontinent formation and movement
Answer:
i think it is c
Explanation:
The fossil forms that occur in the rocks, however, provide the chief means of establishing a geologic time scale, with the timing of the emergence and disappearance of widespread species from the fossil record being used to delineate the beginnings and endings of ages, epochs, periods, and other intervals. i am not trying to copy the other guy or girl
Match the type of stress to the correct type of plate tectonic boundary.
Answer:
compression:convergent
tension:divergent
shear:transform
0
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II
2
3
5
101
1
Using the alleles A and a, what is the genotype of individual
a) 11-6
b) 1-4
11-7
Answer:
what is that supposed to be? maybe a pic of the question?
can someone help me with this question plss
Answer:
unkown
Explanation:
A strand of mRNA has the sequence : AUGGACACGUUG What sequence of amino acids are coded in this strand ?
A- Methionine, glutamic acid, proline, isoleucine
B- methionine , proline , leucine , threonine
C- isoleucine , proline , leucine , threonine
D- methionine , asparagine , threonine , leucine
Answer:
D
Explanation:
(AUG)= methionine
(GAC)= asparagine
(ACG)= threonine
(UUG)= leucine
Which part of the plant releases energy from food
The Mitochondria of a plant cell releases energy from the food. It is a cell organelle and is present in the cytoplasm. They make most of the essential ATPs (Adenosine Tri Phosphate).
Which of these is an advantage of factory farming?
O A. Less efficient operation than family farms
O B. More job opportunities than family farms
O C. Smaller profit margin than family farms
O D. More expensive products than family farms
Answer:
B
Explanation:
Answer is not A because this is not a benefit
Not C because it is also not a benefit
not D because it is not a benefit
B is the only benefit listed.
the process of activating photoreceptors by altering the photopigments is known as __________.
The process of activating photoreceptors by altering the photopigments is known as PHOTOTRANSDUCTION. It involves the mechanism by which light can be converted into electrical signals.
Phototransduction refers to the mechanism by which light can be converted into electrical signals.
Visual phototransduction occurs in the part of the eye known as the retina, in specific cells called photoreceptors and ganglion cells.
Photoreceptor cells include rod cells and cone cells, which are sensitive to light.
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Describe how the presence of lead in body cells could interfere with the
ability of enzymes to function. *
Answer:
Descreva como a presença de chumbo nas células do corpo pode interferir com o capacidade de funcionamento das enzimas. *
Explanation:
espero ter ajudado boa noite
Which organisms "invented" (were the first to use) fermentation?
a
fungi
b
plants
c
bacteria
d
animals
Answer:
bacteria
Explanation:
because they are the one that still been in use
Straight cut through skim usually made during surgery describes snag type of wound
Answer: A surgical wound
Explanation:
A surgical wound is a cut or incision in the skin that is usually made by a scalpel during surgery. A surgical wound can also be the result of a drain placed during surgery. Surgical wounds vary greatly in size. They are usually closed with sutures, but are sometimes left open to heal.
How does temperature affect the rate of a reaction?
A. temperature decreases, the kinetic energy of the particles increases and the number of collisions between particles increases
B. As temperature increases, the kinetic energy of the particles increases and the number of collisions between particles increases
C. As temperature increases, the kinetic energy of the particles decreases and the number of collisions between particles increases
D .As temperature increases, the kinetic energy of the particles decreases and the number of collisions between particles decreases
Temperature is vital for successful beer and wine making.why is it so important ?
Temperature is vital for successful beer and wine making is it so important because in this process bacteria are very helpful and important factor and for them temperature must be minimized.
What is the role of bacteria in the formation of beer?In the formation of beer bacteria plays a vital role as they totally perform a function and due to this there is a change in the taste and concentration of the beer.Temperature is vital for successful beer and wine making is it so important because in this process bacteria are very helpful and important factor and for them temperature must be minimized.
The process by which wine has been prepared is known as fermentation and ethanol has a colourless liquid which catches fire easily and it has been produced by the process of the natural fermentation of the sugars or alcohol. Ethanol has been also known as the alcohol which has colourless and slightly toxic chemical compound and the ethanol forms water as well as carbon dioxide.
Therefore, Temperature is vital for successful beer and wine making is it so important because in this process bacteria are very helpful and important factor and for them temperature must be minimized.
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Use what you have observed to explain what occurs during a dehydration synthesis reaction.
In a dehydration synthesis reaction (Figure), the hydrogen of one monomer combines with the hydroxyl group of another monomer, releasing a molecule of water. At the same time, the monomers share electrons and form covalent bonds. As additional monomers join, this chain of repeating monomers forms a polymer.
The image shows a facility that converts the energy of moving water into
electrical energy. What is one advantage of using this technology in place of a
coal-burning power plant?
A. It produces more water pollution.
B. It causes no harm to ecosystems.
C. It does not emit greenhouse gases.
D. It is fueled by a nonrenewable resource.
Answer:
C. It does not emit greenhouse gases.
The one advantage of using this technology in a coal-burning power plant is that it does not emit greenhouse gases. Therefore, option C is correct.
How does electrical energy formed from moving water?Electrical energy can be generated from moving water through a process called hydroelectric power generation. Hydroelectric power plants use the kinetic energy of moving water to spin turbines, which in turn generate electricity.
Hydroelectric power generation is a renewable source of energy that produces no carbon emissions or air pollution. It is one of the most widely used forms of renewable energy, providing electricity to millions of people worldwide.
However, the construction of dams and reservoirs can have significant environmental impacts on the surrounding ecosystems and habitats. Hence, option C is correct.
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In mitosis the daughter cells are identical to the parent cell. How do the cells produced during meiosis differ from those produced from mitosis
Answer:
The cells produced during mitosis are identical but cells produced in meiosis are different.
Explanation:
This is because in mitosis, there is no crossing over, but crossing over occur in meiosis. During crossing over, there is swapping of the genetic material.
Explain the importance of proteins in our body
It helps repair and build your body's tissues, allows metabolic reactions to take place and coordinates bodily functions.
Addition to providing your body with a structural framework, proteins also maintain proper pH and fluid balance.