Answer:
mitochondrion
Explanation:
its because respiration takes place here where food is broken down to small particles
Explain , using an example to help, what gene is ?
nadph and atp are two molecules produced during the light-capturing reactions of photosynthesis. what are these molecules used for later in photosynthesis in the calvin cycle?
Given the characteristics of the Calvin cycle, we can conclude that NADPH and ATP will be used to reduce carbon dioxide to sugar.
The Calvin cycle is known as a light-independent reaction, meaning it can occur during the dark phase of photosynthesis. It is often called the carbon reduction cycle, given that it does just that. In this cycle, carbon is reduced into a sugar known as G3P. In order to do this, it requires NADPH and ATP.
As with most reactions at a cellular level, it requires ATP. This molecule is that of Adenosine triphosphate and is often known as the "molecular currency" given how common it is as a requirement for reactions to take place. ATP is the source of energy for the Calvin cycle.
Meanwhile, NADPH is also required for the Calvin cycle. The main function of the Calvin cycle is to reduce carbon dioxide through a series of steps in order to produce G3P. In order to reduce CO2, hydrogen atoms are necessary. NADPH acts as a carrier of these hydrogen atoms, offering the ions needed for the reduction to take place.
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in gene expression, which enzyme is responsible for transcribing the dna sequence into mrna by adding complementary rna nucleotides?
Answer:
RNA polymerase II
What features are present in both a plant cell and bacterial cell
Answer:
organelles , Plasma membrane, cytoplasm, ribosomes
Explanation:
mark brainliest plz
which type of transport would be required for the solute molecules to move against the concetration gradient?
Answer:
Active Transport
Explanation:
active transport
During active transport, substances move against the concentration gradient, from an area of low concentration to an area of high concentration. This process is “active” because it requires the use of energy (usually in the form of ATP). It is the opposite of passive transport.
Based on the graphs shown, what would you conclude about the conditions under which enzymes function in cells?
A
Enzymes are most effective at a particular pH and temperature but can function over a range of pH and temperature.
B
С
Enzymes do not have a specific pH or temperature at which they are most effective but function optimally over a range of pH and temperature.
Enzymes work equally well at the low and high ends of their temperature range but reaction rate drops quickly at the high end of their pH range
Enzymes only function at a specific pH and temperature and cannot function over a range of pH or temperature.
D
atoms determine the number of valence electrons determine the stability of the atom based on above
Enzymes are the bio-catalysts. Their presence can increase the rate of a reaction. Enzymes are most effective at a particular pH and temperature but can also function over a range of pH and temperature. Thus, correct option is A.
What are Enzymes?Enzymes are the biocatalysts which are responsible for increasing the rate of a chemical reaction. The enzymes increase the rate of a reaction by decreasing the activation energy which is required by the reactant molecules to collide and form products.
Enzymes are found to function over a range of pH, temperature, and solvents. Enzymes work over a range of different conditions. The value of pH and temperature at which enzymes show highest activity is called optimum condition. Below and above this point, enzymes function but the activity will be lesser than that in the optimum condition.
Therefore, A is the correct option. Enzymes are most effective at optimum condition of pH and temperature.
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A healthy, balanced ecosystem has _______.
a.
fewer producers than consumers
b.
more quaternary consumers than primary consumers
c.
more producers than consumers
d.
fewer primary consumers than tertiary consumers
Please select the best answer from the choices provided
A healthy, balanced ecosystem has _______.
a.
fewer producers than consumers
b.
more quaternary consumers than primary consumers
c.
more producers than consumers
d.
fewer primary consumers than tertiary consumers
Please select the best answer from the choices provided
Answer:
D or B I'm thinking its D
Explanation:
Answer: C
Explanation:
The image below shows one muscle cell. Please choose the name of the structure that is labeled A.
1. Myosin
2. Actin
3. myoglobin
4. troponin
The name of the structure labeled as A is 'myosin'. Moreover, the name of the structure labeled as B is 'actin'.
A sarcomere is the basic unit of muscle contraction. This unit is defined as the region between two Z-lines.
Band A is a central band composed of the thick filaments of myosin.
Moreover, the sarcomere also has two halves of a band known as I-band, which consists of thin filaments of actin.
Muscle contraction is caused by the interaction between actin and myosin protein filaments in the sarcomeres.
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Which of the following is likely to cause widespread damage to an island after an earthquake?
Help plz lol
Atoms are characterized by their protons and the number of
valence electrons. Which atom does this picture represent?
Answer:
carbon because its EC is 2:4 and the diagram shows 4electrons in its outer shell
describe why animals are eukaryotic organisms and why we say their cells are advanced and specialized
Answer:
The reason why they are eukaryotic is that:
- have nuclei
- organelle surrounded by a membrane called the nuclear envelope (where DNA is stored).
why they are advanced and specialized:
- They have power plants called mitochondria.
- these cells evolved into multicellular organisms.
- Eukaryotic cells carry out complex metabolic reactions that prokaryotes cannot.
Explanation:
Eukaryotic organisms are said to have an advanced cell because they contain membrane bound organelles.
Eukaryotic organismsEukaryotes are microorganisms that are made up of membrane bound organelles and whose nucleus is enclosed in a nuclear envelope.
Example of eukaryotes are:
animals,plants, fungi, andprotists.These organisms are said to be advanced and specialized because of the presence of membrane bound organelles which helps them to maintain a stable internal environment.
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which scientist stated that all animals are made of cells?
Answer:
Theodor Schwann
Explanation:
Brainliest would be appreciated!!
If you could specialize yourself the way you want how would you make your self look
Answer: comb my hair?
Explanation:
Put the components of the visual projection pathway in order starting with the retina and ending with the brain. Instructions Choice 1 of 6. Optic radiations toggle button Optic radiations Choice 2 of 6. Optic tracts toggle button Optic tracts Choice 3 of 6. Bipolar and ganglion cells of the retina toggle button Bipolar and ganglion cells of the retina Choice 4 of 6. Hemidecussation in optic chiasm toggle button Hemidecussation in optic chiasm Choice 5 of 6. Lateral geniculate nucleus of thalamus toggle button Lateral geniculate nucleus of thalamus Choice 6 of 6. Primary visual cortex in the occipital lobe toggle button Primary visual cortex in the occipital lobe
Put the components of the visual projection pathway in order starting with the retina and ending with the brain. In order, starting from the lowest to the highest, we have:
Bipolar and ganglion cells of the retina Hemidecussation in optic chiasmOptic tracts Lateral geniculate nucleus (LGN) of the thalamusOptics RadiationPrimary visual cortex in the occipital lobeThe visual projection pathway is referred to as the channel through which electrical impulses created by the retina are transmitted to the brain.
When light penetrates the eye into the retina;
The bipolar and ganglion cells carry the signals from photoreceptors (cones and rods) to ganglion cells, either actively or passively.The axons of the ganglion gather and unite to form the optic nerve.The optic nerve leads to the optical chiasm where hemidecussation of the optic nerve fiber takes place.In the Optic Chiasm, the optic tract contains the nasal fibers that join from the left eye and connect with temporal fibers from the right eye, vice versa.The lateral geniculate nucleus (LGN) which connects from the optic tracts has nerve endings that send optical radiation information from the superior visual fields to the inferior visual fields.The primary visual cortex region is largely located on the occipital lobe of the medial brain surface, its function is to receive and process the optical radiation information sent from the (LGN).
Therefore, we can conclude that we understood the order, mechanism, and process in the visual projection pathway.
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all foods that require refrigeration should be maintained at an internal temperature. true or false
Answer:
TRUE
Explanation:
uhm i'm sure with this answer.
True or False: Immediate treatment is always necessary for those who have an arrhythmia.
*F
Answer:
False
Explanation:
Some heart arrhythmias do not need treatment. Heart arrhythmia treatment is usually only needed if the irregular heartbeat is causing significant symptoms, or if the condition is putting you at risk of more-serious heart problems.
Answer:
false
Explanation:
¿Cuál es el papel de la gravitación en el movimiento de los planetas y la caída de los cuerpos en la superficie terrestre?
Answer: c
Explanation: trust
In your own words, explain how
flow rate is affected by viscosity,
cohesion and adhesion.
Answer:
Heating a gas increase its viscosity .When the viscosity of a fluid decreases,it's flow rate increase. You can compare the viscosity of different fluids by comparing their flow rate. Flow rate is affected by adhesion and cohesion. The slower the fluid flows ,the greater the viscosity.
What are the 2 major sections of cell division called?
Answer:
mitosis and interphase
quizlet
Explanation:
Two parts of cell cycle are Karyokinesis and Cytokinesis
Single celled eukaryotes are considered some of the most complex
cells on earth. Why would scientists believe that single celled
organisms(eukaryotes) are more complex than multi celled
organisms?
Answer:
Eukaryotic cells are more complex than prokaryotes, and the DNA is linear and found within a nucleus. Eukaryotic cells boast their own personal "power plants", called mitochondria.The complex eukaryotic cell ushered in a whole new era for life on Earth, because these cells evolved into multicellular organisms.
Explanation:
Answer:
The ability to maintain different environments inside a single cell allows eukaryotic cells to carry out complex metabolic reactions that prokaryotes cannot. In fact, it's a big part of the reason why eukaryotic cells can grow to be many times larger than prokaryotic ones.
:-
One theory that may explain how eukaryotes became so complex is the endosymbiotic theory. This theory proposes that organelles like mitochondria and chloroplasts were once free-living prokaryotic cells that began to live within a larger host cell.
Which of the following is an example of a chemical change ?
Answer:
B , frying a egg .
Explanation: frying a egg is a chemical change because , at first it was kind of a liquid but now its a sold
in gel electrophoresis dna molecules migrate from _____ to _____ ends of the gel.
Answer:
one region to another
Explanation:
maybe I dont know
4. Which structure is not unique to plant cells?
Answer:
The plant cell has a plant wall Chloroplast.
Explanation:
this is not found in animal cells.
Answer:
lysomes or centrosomes
Which of the following correctly describes contrasting features of a plant cell and an animal cell?
Plant cells have a cell membrane, and animal cells have both cell walls and a cell membrane.
Plant cells have a large central vacuole that takes up most of the cell's space, and animal cells have many smaller vacuoles.
Plant cells have lysosomes with enzymes, while animal cells have only the Golgi apparatus.
Plant cells have both rough and smooth endoplasmic reticulum, while animal cells have only smooth endoplasmic reticulum.
Answer:
Plant cells have a large central vacuole that takes up most of the cell's space, and animal cells have many smaller vacuoles.
Explanation:
Hope this helps.
What is the goal of using renewable energy sources?
Answer:
to reduce or to minimize waste
to improve life style or to be modest county like USA unlike Africa
What is the main function of our nervous
Answer:
to collect a multitude of sensory information; process, interpret, and integrate that information;and initiate appropriate responses throughout the body.
Index fossils give us clues to_______________?
Question 5 options:
the history of the wooly mammoth
the diet of early man
species and paleoenvironments long ago
multicellular organisms
Answer:species and pale environments long ago
Explanation:
Sun Mercury Venus Earth Mars Jupiter Saturn Uranus Neptune
At a large desk or on the floor, choose a position to represent the Sun, and place Mercury a few inches from it. Predict the relative distances between each of the other planets, and space them out accordingly. Do you think the average distances between each of the planets stays relatively consistent or varies greatly? What leads you to this conclusion?
Assuming we are to perform this model to scale, with accurate and reliable data, we can conclude that the average distance between each of the planets would increase as we go.
Most science projects which involve creating a model of the solar system place each planet in perfect orbits at equal distances from one another. Accurate scientific data tells us that this is not the case.
The position of the planets in our solar system follow two trends:
Not all planets have perfectly circular orbits, and therefore are not always at the same distance The spacing between planets grows as we get further from the sun.The distance from the sun weakens the effects of the Sun's gravity on the planets, causing them to be further apart as well as causing increasingly erratic orbits. This leads us to the conclusion that the average distance between planets varies greatly.
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Answer:
The distance from the sun weakens the effects of the Sun's gravity on the planets, causing them to be further apart, as well as, causing increasingly erratic orbits. This leads us to the conclusion that the average distance between planets varies greatly.
Explanation:
Edmentum
Give one example of how we could study
how organisms interact with other
organisms:
Answer:
Some organisms can make their own food, and other organisms have to get their food by eating other organisms. An organism that must obtain their nutrients by eating other organisms is called a consumer, or a heterotroph.
Explanation:
Describe the use of carbohydrates and lipids for energy
storage in animals.
Answer:
Animals tend to use carbohydrates primarily for short-term energy storage, while lipids are used more for long-term energy storage. Carbohydrates are stored as glycogen in animals while lipids are stored as fats (in plants carbohydrates are stored as cellulose and lipids as oils)
Explanation:
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