Answer:
8) B
9) C
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Use the image below to answer the question.
The illustration shows the mitochondrial intermembrane space. Molecules enter and exit enzymes. Molecule upper N upper A upper D upper H passes through enzyme upper N upper A upper D upper H Reductase releasing upper H superscript + baseline and upper N upper A upper D superscript + baseline. A blue arrow starts at upper N upper A upper D superscript + and goes through enzyme Ubiquinone then enzyme Cytochrome Reductase, an upper H superscript + baseline is released. The arrow continues through enzyme Cytochrome c and enzyme Cytochrome Oxydase, another upper H superscript + baseline is released. The formula 2 upper H + one-half upper O subscript 2 baseline is to the left of enzyme Cytochrome oxydase with an arrow pointing to the other side. The arrow meets with the arrow from upper N upper A upper D superscript + baseline at upper H subscript 2 baseline upper O. To the right is upper A upper T upper P synthase, upper A upper D upper P + upper P subscript 1 baseline have an arrow going under upper A upper T upper P synthase, an upper H superscript + baseline arrow points to the arrow, the result is upper A upper T upper P.
Which step of cellular respiration is shown in the image?
glycolysis
lactic acid fermentation
electron transport chain
Krebs cycle
Answer:
electron transport chain
Explanation:
just took the quiz
The image shows the C. electron transport chain (ETC) step of cellular respiration
What is the electron transport chain ?The ETC is the final stage of cellular respiration, where oxygen is used to create ATP. NADH and FADH2, which are produced in the Krebs cycle, donate electrons to the ETC.
The electrons are passed through a series of proteins, which release energy that is used to pump protons across the mitochondrial membrane. This creates a proton gradient, which is used to power ATP synthase to produce ATP
The Krebs cycle and lactic acid fermentation are both earlier steps in cellular respiration. In the Krebs cycle, pyruvate is oxidized to produce NADH, FADH2, and ATP. In lactic acid fermentation, pyruvate is converted to lactate, producing NADH.
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Jenny was worried about how some pollutants in a lake near her home were affecting the levels of dissolved oxygen in the water, so
she designed the following experiment.
First, she collected five 10-gallon aquariums and filled each with water from her tap. Then, she tested the initial oxygen level of the
tap water.
Next, she put a tablespoon of different pollutants, including gasoline, cooking oil paint, and lawn fertilizer, in each of four of the
tanks. She stirred those four tanks for 1 minute each to help the pollutant dissolve or spread out in the tank.
Finally, she tested the oxygen level in each tank once every hour and recorded her results in the table below.
Tank
Pollutant
in water
Initial
O2 level
(without pollutants)
O2 level O2 level
after 1 hour after 2 hours
1 none
2 gasoline
3 cooking oil
4 paint
5 lawn fertilizer
What is the dependent variable in Jenny's experiment?
OA. initial oxygen level in tank without pollutant
OB. levels of Oz in each tank
OC. amount of pollutant put in each tank
OD. pollutant in each tank
Answer:
levels of o2 in each tank
Explanation:
You can control the pollutant levels.I am super bad at explanations but i answered this question and got it right .
paul says that i the number 6367 one 6 is 10 times as great as the other 6 is he correct why or why not?
Answer:
hffbdhddjsndhhshdhuz
what is photosynthesis ??
Answer:
the process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a byproduct.
Answer:
The process of making food by plants through the help of sunlight is called photosynthesis
DO YOU THINK IT CAN BE COMPLEMENTED
WITH BIOMES? (The composting)
Answer:
yeah because some biomes r put n2 everything
Explanation:
HELP THIS IS 100 POINTS
In a scientific experiment, the one variable that is purposely changed to
test a hypothesis is called the:
the manipulated variable (also called the independent variable)
A _ is a group of connected cells that have a similar
A
function.
Answer:
A TISSUE is a group of connected cells that have a similar function.
Nucleic acids are composed of:
a: a phosphate group, a pentose sugar, a nitrogen base
b: a phosphate group, a pentose sugar, a carboxylic acid
c: a pentose sugar, a nitrogen base, an R group
d: a nitrogen base, an amino acid group, a carboxylic acid
Answer:
a phosphate group, a pentose sugar, a nitrogen base
Explanation:
nucleic acid is a polymeric macromolecule made up of repeated units of monomeric 'nucleotides' composed of a nitrogenous heterocyclic base which is either a purine or a pyrimidine, a pentose (five carbon) sugar (either ribose or 2′-deoxyribose), and one to three phosphate groups.
What microscope would be appropriate for viewing the surface texture of a salt molecule?
Transmission Electron Microscope
Scanning Electron Microscope
Dissecting Microscope
Light Microscope
Answer:
the scanning one
Explanation:
it's just choice
Why is the stem of aquatic plants weak
Answer:
In general, aquatic plants need to bend to the force of water. Water is dense and exerts a strong force.
Explanation:
this is the answer
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Answer:
The stem of the aquatic plants is flexible.
Explanation:
Because it helps the leaves to float.
write two advantage from the study of life cycle of mosquito
Answer:
Knowing the different stages of the mosquito's life will help you prevent mosquitoes around your home and also help you choose the right pesticides for your needs, if you decide to use them. All mosquito species go through four distinct stages during their life cycle: Egg - hatches when exposed to water.
The two advantage from the study of life cycle of mosquito are:
•It enables us to have better understanding of the ways to reduce and prevent mosquitos bites.
•It helps us to go for the right mosquitos spray that will help in controlling the spread of mosquitos.
Mosquitoes is an insect that be found any where which is why preventing measure needs to put in place so as to avoid or prevent them from biting you skin so as to suck up blood or transmit virus.
Mosquitos are often very energetic especially at sunset to sunrise and they can be found at:
• Home
•Outside Home
•Where their is stagnant water etc
The disease or virus transfer by mosquitos is Malaria, this is cause by Anopheles mosquitoes as it tend to carry the virus in which after biting it victim it transfer the virus into the blood stream of the victim causing what is called Malaria .
Inconclusion The two advantage from the study of life cycle of mosquito are:
•It enables us to have better understanding of the ways to reduce and prevent mosquitos bites.
•It helps us to go for the right mosquitos spray that will help in controlling the spread of mosquitos.
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Which of the following is an example of adaptive radiation?
Answer:
Australian marsupials ,
cichild fish
Darwin's finches
a striking example is the radiation, begin in the paleogene periods of basal mammalian stuck into form adapted to running ,liping, flying, and swimming.
How can you detect and manage a patient’s cancer when it is constantly evolving and adapting?
Answer:
Cancer
Explanation:
they start to lose hair and they get sick because of cancer
The taxon between the class and family is the ________.
a genus
b order
C species
d phylum
Answer:
The answer is order.
Explanation:
Kingdom, phylum or division, class, order, family, genus, species.
The optic nerves pass through the ----- of the ------- bone.
Answer:
sphenoid bone
Explanation:
Extracranial. The optic nerve is formed by the convergence of axons from the retinal ganglion cells. These cells in turn receive impulses from the photoreceptors of the eye (the rods and cones). After its formation, the nerve leaves the bony orbit via the optic canal, a passageway through the sphenoid bone.
In a human population of 1000 ,840 are tongue rollers and 160 are not tongue rollers .What is the frequency of the dominant allele
Answer:
0.6
Explanation:
Why is sugar essential to life?
Photosynthesis stops due to the atmosphere filled with dust after a meteor strike on Earth. Why would the dust cloud stop photosynthesis?
The rays of sunlight has been obscured by the dust cloud thereby stopping photosynthesis.
Photosynthesis is defined as the process which green plants use in the production of their own food. in the presence of sunlight.
A meteor strike occurs when an extraterrestrial object such as an asteroid or meteoroid passes through the earths atmosphere or hits the earth. this can lead to the atmosphere being filled with dust especially when the incident hits the earth surface.
In the process of photosynthesis, the light stage depends on sunlight to take place.
Because the rays from the sunlight has been hindered by the dust after the meteor strike, the light stage of photosynthesis is inhibited (stopped). Therefore, photosynthesis cannot occur.
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During transformation,
a. a prokaryote is changed into a eukaryote.
b. a cell takes in DNA from outside the cell.
c. foreign RNA is inserted into a plasmid.
d. a clone is produced.
Answer:
b. a cell takes in DNA from outside the cell.
Using the above pedigree, explain why Individual III-3 has albinism even though both of his parents lack this trait.
Answer:
Heredity | Khan Academy
Reading a pedigree · Determine whether the trait is dominant or recessive. If the trait is dominant, one of the parents must have the trait.
Answer:Using the above pedigree, explain why Individual III-3 has albinism even though both of his parents lack this trait.
Explanation:
Which explains why secondary succession generally occurs more rapidly in an area than does primary succession?
A) Average precipitation is higher
B) Moderate climatic conditions exist
C) Pioneer species are microscopic
D) Soil formation has already occurred
Answer:
Secondary succession usually occurs faster than primary succession because the substrate is already present. In primary succession, there is no soil and it needs to form. This process takes time, as pioneer species must colonize the area, they must die, and as this happens over and over again, soil forms.
How do scientists study life?
Answer:
Scientists usually conduct research in laboratories using a wide variety of other equipment. Some conduct experiments involving animals or plants.Biological scientists can now manipulate the genetic material of animals and plants, attempting to make organisms more productive or resistant to disease.
Explanation:
Scientists usually conduct research in laboratories using a wide variety of others equipment. Some conduct experiments involving animals and plants. Biological scientists can now manipulate the genetic material of animals and plants , attempting to make organisms more productive or resistant to diseases. Biological scientists study living organisms and their relationship to the environment. scientists usually conduct research in laboratories using a wide variety of other requirements.
Please identify the stimulus (S) and response (R).
A dog is hot so he lies in the shade.
Which is the stimulus?
A. Dog gets hot.
B. Dog finds shady spot.
Answer:
A. Dog gets hot
Explanation:
a stimuli reaction is where your body is reacting due to the change in environment. in this question the dog is trying to maintain homeostasis.
Proteins can be denatured in many ways.
Which of the following will NOT denature
a protein?
A. pH
B. temperature
C. too many enzymes
D. salt content
Answer:
Explanation:
However, at very high salt concentration, the increased surface tension of water generates a competition between protein and salt ions for hydration. Salts strip off the essential layer of water molecules from the protein surface eventually denaturing the protein
Too many enzymes cannot denature protein.
Enzymes are a type of protein so they will not get denatured in presence of one another.Enzymes are proteins that speed up any biochemical reaction in the body.What is denaturation of protein?It is a process of modifying the molecular structure of a protein.It involve breakage of many of the weak bonds within the protein molecule that are responsible for the structure of protein and its order.It can happen due to high temperature, pH, salt concentration and mechanical concentration.To know more about denaturation of protein here
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describe how the principle of osmosis is applied when preserving mangoes using sugar solution and making salted fish by using salt
HELP THSI IS 100 POINTS
A group of students is doing an experiment where they roll a ball down a
ramp and then measure how far across the floor it rolls. The factors that are
the same each time are: - the ball - the ramp, including its length and angle
to the surface - where on the ramp the ball starts from The students do
change the type of surface the ball rolls on. What is the independent
variable in this experiment? *
ramp
ball
distance
type of surface the ball rolls on.What is the independent variable in this experiment
Answer:
The ball
Explanation:
because it is the variable that is altered/used during this scientific experiment. It would not be the ramp or distance because the ramp is what's being tested or measured (dependent variable) and the distance is what stays the same (controlled variable).
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state why in 2010 the number of people living with HIV increased but the number of newly infected people decreased
Answer:
because There were approximately 37.6 million people across ... marking a 30% decline in new HIV infections since 2010.
HELP////What is the purpose of an enzyme?
A. To decrease the activation energy of a reaction to make it occur more slowly.
B. To increase the activation energy of a reaction to make it occur more slowly.
C. To decrease the activation energy of a reaction to make it occur more quickly.
D. To increase the activation energy of a reaction to make it occur more quickly.
Answer:
Una enzima es un catalizador biológico. ... El objetivo de un catalizador es aumentar la velocidad con que ocurre una reacción. Hay muchas, muchas enzimas que son codificadas por el genoma para producir proteínas o ARN que aceleran las reacciones químicas y hacen varios miles de funciones diferentes dentro de una célula.
Explanation:
L -- A
Answer:
To increase the activation energy of a reaction to make it occur more quickly.
Explanation:
Enzymes create chemical reactions in the body. They actually speed up the rate of a chemical reaction to help support life. The enzymes in your body help to perform very important tasks. These include building muscle, destroying toxins, and breaking down food particles during digestion.
produce more white blood cells
Question 23 (1 point)
Whaite blood cells help to destroy the infection in the body.
True
False
Question 24 (1 point)
Its true
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Prior to the big bang, there was only
O Heat
O Space
O Energy
O Time
Answer:
O space
Explanation:
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