Answer and explanation:
The mitochondria are the organelle responsible for respiration, which leads to the production of ATP - the most important molecule in energy transfer.
For respiration to happen, there are several processes involving chemical reactions that take place in the mitochondria. These mechanisms are: oxidative decarboxylation, Krebs cycle, and oxidative phosphorylation. Glycolysis is also important for these processes to occur, but this particular case happens outside of the mitochondria.
Pyruvate is an important precursor of the Krebs cycle, also called 'the citric acid cycle'. The researcher observes the functioning of the mitochondria in presence of pyruvate, but then adds an inhibitor of isocitrate dehydrogenase. This inhibitor cancels out the action of the isocitrate dehydrogenase, which is a key enzyme in the Krebs cycle. By inhibiting this enzyme, the cycle cannot continue, and respiration stops.
Recall that an ecosystem includes living things AND the non-living environment.
Which of these are examples of non-living parts of the ecosystem pictured?
A sunlight, rocks, water, rotting log
B soil, insects, tree, mushrooms
C fish, frogs, snails, birds
D algae, protozoans, bacteria, plankton
What would the DNA nucleotide sequence be if the following DNA strand was Replicated?
ATGGGACTCA
Answer:
Dideoxynucleotides are chain-elongating inhibitors of DNA polymerase, used in the Sanger method for DNA sequencing. They are also known as 2',3' because both the 2' and 3' positions on the ribose lack hydroxyl groups, and are abbreviated as ddNTPs.
Explanation:
Pluto travels around the sun in which zone of the solar system?
As the skin ages, it loses its ability to restore its shape due to a:
decrease in collagen.
decrease in hormones.
decrease in keratin.
decrease in elastin.
Answer:
The answer is decrease in elastin
Answer:
D
Explanation:
EDGE2021
can someone pls help me with this
Answer:
t= log2(2048)
The logarithm is the inverse function to exponentiation. That means the logarithm of a given number x is the exponent to which another fixed number, the base b, must be raised, to produce that number x. In this case:
[tex] {t}^{2} = 2048[/tex]
[tex]t = \sqrt{2048} = 45.3h[/tex]
Persian cats often have certain diseases and disorders, especially of the eye and nose since their heads have an unusual shape. Persian cats were developed by artificial selection by humans.
Which of the following traits is deliberately selected for when breeding Persian cats?
A.
flat faces
B.
inherited diseases
C.
genetic diversity
D.
all of these
Answer:
the answer is A
Explanation:
It couldn't be D or C because you don't want to give your cat a diseases and so that means it couldn't be D which is all of the above.
1. What makes California special in terms of biodiversity?
Answer:
California is a biodiversity hot spot because of its unique geography, climate, geologic history and size. California’s network of terrestrial protected lands covers 46% of the state.
Explanation:
Which item in the photo is a good thermal insulator, and why?
A. The plastic handle, because its electrons dont move freely
O B. Human skin, because it is made up mostly of water
C. The metal pan, because its electrons move quite freely
D. The cut vegetables, because they contain a lot of water
Answer:
free electrons can go through the material such as they are most through loses send the water inside the vegetables of human skin is not very good inspiration because its water if you had to take a warm shower and then come out you feel very cold
Which DNA-containing central cell structure found in plant and animal cells is absent in bacterial cells?
The DNA-containing central cell structure found in plant and animal cells is absent in bacterial cells is nucleus.
What is nucleus?The part of a cell that houses the chromosomes in biology. The membrane-enclosed nucleus is where RNA is synthesised from the chromosomal DNA.
DNA is organised into chromosomes in the nucleus, which is located in the centre of the cell.
The double nuclear membrane (outer and inner) that separates the nucleus from the cytoplasm, known as the nuclear envelope, envelops it. The rough endoplasmic reticulum and the outer membrane are one unit.
The nucleolus' main job is to facilitate ribosome biogenesis by assembling and digesting rRNA into preribosomal particles.
Bacterial cells lack the nucleus, the primary cell structure that houses DNA, that is present in plant and animal cells.
Thus, nucleus is only present is eukaryotic cells.
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At the site of a wound, platelets release chemicals that start a chain reaction to produce _____. A. Hemoglobin. B. Fibrin. C. Lymph. D. Plasma
Answer:
C
Explanation:
Los procesos de respiración aerobia celular y fotosíntesis, procesos considerados indispensables para la vida en la tierra, de los que es correcto afirmar que Son de carácter antagónico, es decir el cloroplasto ejecuta reacciones anabólicas y la mitocondria catabólicas. La respiración celular sólo la realizan los seres eucariotas del reino de los vegetales. Ambos son realizados por los seres considerados eucariotas. Ambos son realizados por eucariotas pertenecientes al reino de los vegetales
Respuesta:
Las opciones correctas son: a) son de carácter antagónico, es decir el cloroplasto ejecuta reacciones anabólicas y la mitocondria catabólicas; y d) ambos son realizados por eucariotas pertenecientes al reino de los vegetales.
Explicación:
La fotosíntesis y la respiración celular son procesos de carácter antagónico porque la fotosíntesis es anabólica y la respiración celular es catabólica. La fotosíntesis consiste en la producción de moléculas complejas a partir de moléculas simples (proceso anabólico), mientras que en la respiración celular se degradan moléculas complejas y se las convierte en moléculas más simples (proceso catabólico).
Ambos procesos son realizados por los eucariotas del reino de los vegetales, pero los eucariotas del reino animal sólo realizan respiración celular, ya que no tienen cloroplastos. Esta diferencia tan importante existe porque los animales pueden moverse para conseguir comida (heterótrofos), mientras que los vegetales necesitan producir sus propios nutrientes haciendo uso de la fotosíntesis (autótrofos). Más allá de esta diversidad, todos los eucariotas realizan respiración celular para producir energía en forma de ATP.
help me pls answer..
Describe each group’s role in the food web:
Producers:
Herbivores:
Carnivores:
Omnivores:
Detritivores:
Decomposers:
A space used in industry or research settings that has a controlled level of contaminants is called a __________.
Answer:
Clean room.
Explanation:
An experiment can be defined as an investigation which typically involves the process of manipulating an independent variable (the cause) in order to be able to determine or measure the dependent variable (the effect).
This ultimately implies that, an experiment can be used by scientists to show or demonstrate how a condition causes or gives rise to another i.e cause and effect, influence, behavior, etc in a sample.
Cause and effect can be defined as the relationship between two things or events in which an occurrence one (cause) leads to the occurrence of another (effect).
Hence, a space used in industry or research settings that has a controlled level of contaminants is called a clean room.
A clean room refers to environment or laboratory that is typically free from dust, pollution or any form of contaminants, used for carrying out experiments and manufacturing processes.
structure that helps move bacteria is called a
Explanation:
Flagella - Flagella (singular, flagellum) are hairlike structures that provide a means of locomotion for those bacteria that have them. They can be found at either or both ends of a bacterium or all over its surface.
Moles and freckles are similar in that they are both:
skin abnormalities
growths
caused by an even distribution of melanin
caused by an uneven distribution of melanin
Answer:
I believe that the answer would be skin abnormalities.
Explanation:
Growths do not apply.
Melanin applies mainly to freckles.
The term genotype refers to
Answer:
In a broad sense, the term "genotype" refers to the genetic makeup of an organism; in other words, it describes an organism's complete set of genes. In a more narrow sense, the term can be used to refer to the alleles, or variant forms of a gene, that are carried by an organism.
Explanation:
Answer to this question ?
Answer:
[tex]\Large \boxed{\sf 50\%}[/tex]
Explanation:
[tex]X=Aa[/tex]
[tex]Z=bb[/tex]
Heterozygous is when an individual has two different alleles of a gene.
[tex]Heterozygous \rightarrow Aa,Aa,Bb,Bb[/tex]
[tex]\displaystyle \frac{no. \ of \ heterozygous}{total \ no.}=\frac{4}{8} =0.5[/tex]
List and describe the six common morphologies
Explanation:
The basic morphologies are spheres (coccus) and round-ended cylinders (bacillus). But there may be others such as helically twisted cylinders (spirochetes), cylinders curved in one plane (selenomonads) and unusual morphologies (such as the square, flat box-shaped cells of the archaean genus Haloquadratum).
Which of the following characteristics is shared by both primary and secondary consumers?
Uses the Sun’s radiant energy to produce food
The first step in any food chain diagram
Eats only plants to gain needed energy
Gains energy by eating other living things
The characteristic that is shared by both primary and secondary consumers is that they gain energy by eating other living things. Therefore, option D is correct.
What are consumers in an ecosystem?The primary consumers are the organisms that devour the producers. They are numerous and often modest in size. Herbivorous animals are the primary consumers (vegetarians). The organisms known as secondary consumers are carnivores that consume the primary consumers. Secondary consumers are consumed by tertiary consumers.
Herbivores, carnivores, omnivores, and decomposers are the four different categories of consumers in ecology.
The characteristic that is shared by both primary and secondary consumers is that they gain energy by eating other living things. Therefore, option D is correct.
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How is energy produced in the sun? Draw a diagram to explain the processes.
Answer:
hope it's help uu
Explanation:
if wrong then sry
Answer:
The sun generates energy from a process called nuclear fusion. During nuclear fusion, the high pressure and temperature in the sun's core cause nuclei to separate from their electrons. During this process huge amount of energy is created.
I NEEEDDD HELP PLEASE
Answer:
the second answer choice
25% red, 50% pink, and 25% white
Explanation:
construct a punnett square with the genotype RW and cross them to get genotypes of RR, RW, RW, and WW.
RR is red and occurs once so that is a 25% chance (1/4)
RW is pink and it occurs twice so that is 50% (2/4)
WW is white which occurs once and it is another 25% (1/4)
Help meeeeee, WILL GIVE BRAINLIESTTT. NEEED DONEEE
A student graphed distance versus time for an object that moves 14 m every 2 seconds. What is the slope of the ling on the graph. Please explain!
Answer:
A slope of 7, representing a speed 7 m/s.
Explanation:
Speed is defined as the distance traveled over time. Mathematically, it's calculated with the equation:
[tex]speed = \frac{distance}{time}[/tex]
Slope of a graph is the rate at which the y and x axis change together, the "rise over the run." Slope can be simply calculated using this equation:
[tex]slope = \frac{x_{2} - x_{1}}{y_{2} - y_{1}}[/tex]
Therefore, when graphing distance versus time, the change in distance is divided by the change in time to find the slope. This is the same as speed.
The Cell TheoryThe smallest living things are one-celled or ____+_______________Large organisms contain millions of cells. They are many-celled or _________________ ____________________________.All of the organism's life functions are carried out by cells or parts of cells.Cells develop from other living cells – not from nonliving matter.
Answer:
unicellular; multicellular
Explanation:
The smallest and the most basic unit of life is the cell. Living organisms that are made of just one cell are said to be unicellular while those that are made up of multiple cells are said to be multicellular. Many unicellular organisms are some of the smallest living organisms to exist in nature. They cannot be seen with the ordinary eyes, except with the aid of microscopes.
Urgent !! Pls help!
why can an increase in glycon phosphorlase activity might result in an increase in o2 consumption in the cell
Answer:
The liver senses the concentration of glucose in the blood and takes up or releases glucose accordingly. The amount of liver phosphorylase a decreases rapidly when glucose is infused. After a lag period, the amount of glycogen synthase a increases, which results in the synthesis of glycogen.
Explanation:
Answer:
In muscle tissue, the ratio of phosphorylase a to phosphorylase b determines the rate of conversion of glycogen to gluco...
In muscle tissue, the ratio of phosphorylase a to phosphorylase b determines the rate of conversion of glycogen to glucose 1-phosphate. Classify how each event affects the rate of glycogen breakdown in isolated muscle tissue.
The various enzymes in our body are _____.
carbohydrates
lipids
nucleic acids
proteins
What can be used to illustrate evolutionary classification, or cladistic analysis
1. Which statement is true about renewable natural resources?
Resources that are being used at a rate much faster than the rate at which they are
formed.
Resources exist in a fixed amount and can only be replaced through a process that
takes millions of years.
Resources replaced through natural processes at a rate equal to or faster than they
are being used.
Natural Resources can be depleted or used to the point that they are no longer
available.
Answer: it is b i just did it 5 minutes ago
Explanation: it is b i just did it 5 minutes ago
Please Help!! I need it :)
I think it's endoplasmic reticulum:)