Final answer:
The G1 phase of interphase is primarily focused on cell growth and preparing the necessary components for DNA replication, with no visible change under the microscope. The S phase is where DNA replication occurs, producing two identical sister chromatids for each chromosome and duplicating centrosomes. Both are preparation steps for cell division, but they differ in function; G1 accumulates resources, while S utilizes them to replicate DNA.
Explanation:
The G1 phase and S phase are both crucial stages in interphase of the cell cycle. During the G1 phase, also known as the first gap, the cell is metabolically active, increasing in size and synthesizing proteins while accumulating the necessary building blocks of chromosomal DNA. Little change is visible under a microscope during this phase; however, the cell prepares for DNA replication by accumulating the necessary materials and energy reserves.
The S phase (synthesis phase) is when DNA replication actually occurs. Each chromosome's DNA is duplicated to form two sister chromatids, attached at the centromere. The cell also duplicates its centrosomes, which are important for mitotic spindle formation during the subsequent mitosis. This phase is essential as it ensures that each new cell will receive an identical set of genetic information.
While both phases are part of interphase and are preparation steps for cell division, their key functions differ. The G1 phase focuses on growth and preparation for DNA synthesis, whereas the S phase is where the actual replication of DNA and centrosomes takes place. Additionally, G1 phase is about accumulating resources and the S phase is about utilizing those resources to synthetize a complete copy of the cell's DNA.
You need to cut down 3 trees to get to about 5 kilograms of bark. About how many tress do u have to cut down each year to make enough paclitaxel for 60,000 patients?
Final answer:
To produce enough paclitaxel for 60,000 patients, approximately 21,600 trees need to be cut down each year, based on the requirement of 600 g of starting material for a single 300 mg dose of paclitaxel.
Explanation:
To calculate how many trees must be cut down each year to make enough paclitaxel for 60,000 patients, we need to consider the dose required along with the efficiency and starting material for the drug synthesis. Based on the information provided, for a single 300 mg dose of taxol (paclitaxel), 600 g of starting material is needed. If we need to treat 60,000 patients and each patient requires one dose, we need a total of 60,000 × 600 g of starting material.
The total starting material required would be 36,000,000 g or 36,000 kg. Knowing that 3 trees yield approximately 5 kg of bark, we can calculate the number of trees needed as follows:
Number of trees = (Total starting material in kg) / (Bark per 3 trees) × 3 trees
Number of trees = 36,000 kg / 5 kg × 3 trees
Number of trees = (36,000 / 5) × 3
Number of trees = 7,200 × 3
Number of trees = 21,600
Therefore, to produce enough paclitaxel for 60,000 patients, approximately 21,600 trees need to be cut down each year.
what organisms break down chemical wastes in a treatment plant
Decomposers and recyclers, including bacteria, fungi, and protists, play a key role in breaking down chemical waste in treatment plants. They convert organic matter and pollutants into simpler forms, releasing essential nutrients back into the environment.
Explanation:The organisms that break down chemical wastes in a treatment plant are primarily decomposers and recyclers, such as bacteria, fungi, and protists. These organisms obtain their nutrients from decaying organic matter, using their metabolic activity to release elements like carbon, nitrogen, and phosphorus back into the environment.Fungi, for instance, break down insoluble compounds like cellulose and lignin into absorbable particles, releasing these elements. Similarly, certain bacteria can degrade pollutants like hydrocarbons into smaller subunits or transform them into carbon dioxide. Protists, on the other hand, are often found in anaerobic environments where they contribute to the digestion of cellulose. Collectively, these organisms fulfill an essential role in wastewater treatment, aiding in the bio remediation process.
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Why body system is dependent on a constant supply of iron, and what deficiency is caused when this mineral is lacking?
Answer:
For erythropoesis/ RBC production, anaemia
Explanation:
Our body needs a constant supply of blood. The blood contains haemoglobin which is a respiratory pigment and a conjugated protein. It contains iron and globin protein. This iron-containing pigment supplies more oxygen to the tissues and gives red colour to the blood. The deficiency of iron or this haemoglobin pigment in the blood leads to anaemia. The iron pigment or haem pigment of haemoglobin increases the carrying capacity of oxygen. Our body tissue needs oxygen for metabolism.We get iron from foods and these irons play an important role in RBC production in the bone marrow.
Why are mushrooms important to the food chain?
What makes speed a compound unit is that it includes units for _____ and _____.
A. velocity; time
B. distance; time
C. distance; velocity
D. velocity; acceleration
Where are all your taste buds located (3 places), and where are MOST taste buds located (be specific)?
how long might it take for an ecosystem to become balanced
what is the astronomical unit based on
Answer:
The astronomical unit (AU) is a unit of length that is based on the average distance between the Earth and the Sun. One AU is equal to 149,597,870.7 kilometers (92,955,807.3 miles).
PLEASE MARK ME AS BRAINLIEST !!!what classification would best an oak tree?
1) autotroph
2) chemotroph
3) heterotroph
4) metabotroph
question #2
which process is responsible for breaking downs things?
1) metabolic reactions
2) catabolic reactions
3) anabolic reactions
4) thermodynamic reactions
please help
Which type of resource is a fossil fuel?
renewable
nonrenewable
reusable
recycled
WILL GIVE BRAINLIEST
Answer:
non renewable
Explanation:
It cannot be renewed until thousands of years.
The greenhouse gas methane is released by cattle as a Product of their metabolism what effect would increase in cattle ranching be expected to have a c product of their metabolism what effect would increase in cattle ranching be expected to have on climate
why can't we use seawater to irrigate our crops?
Seawater cannot be used to irrigate crops due to its high salt content. Plants are not able to tolerate high levels of salts, which can harm their cells and inhibit essential cellular functions. Freshwater or low-salt water sources are necessary for successful crop irrigation.
Explanation:While some organisms have adapted to survive in highly salty conditions, most plants are not able to tolerate high levels of salts in their environment. The salt in seawater can harm plant cells and block essential cellular functions, leading to plant stress, reduced growth, and crop failure.
In addition, the salt in seawater can build up in the soil over time, making it unsuitable for plant growth. Saltwater irrigation can damage soil structure, decrease soil fertility, and affect the nutrient balance in the soil.
To successfully irrigate crops, freshwater or water with low salt content is needed. Access to safe freshwater sources is crucial for agricultural production and food security, particularly in regions where water scarcity is already a concern.
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How do Eukaryotic cells differ from each other?
Answer:
Eukaryotic cells differ from each other due to their structure and function.
Explanation:
( I hope that helped.)
Eukaryotic cells differ from each other in their structure and function.
What is a eukaryotic cell?A eukaryotic cell has a true nucleus surrounded by a membrane having genetic material.
A membrane-bound nucleus is a central cavity surrounded by a membrane that houses the cell's genetic material. A number of membrane-bound organelles and compartments with specialized functions float in the cytosol.
Cell types become distinct from one another as they synthesize and accumulate diverse sets of RNA and protein components, so different eukaryotic cells have different functions. A eukaryotic cell has a true nucleus surrounded by a membrane having genetic material.
Therefore different eukaryotic cells have diverse functions depending on size, and cytoplasmic content.
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some organisms use chemosynthesis to survive. where do they get their energy for this process
Answer: The substances such as hydrogen sulfide and ammonia are oxidized to obtain energy in the presence or absence of oxygen.
Explanation: Many organisms that live in the darker regions of the ocean use this technique to derive energy as sunlight cannot reach there to perform the process of photosynthesis.
The energy obtained by this process is used provide energy to the organism which is used for sustaining life in the deep down ocean.
Both aerobic and anaerobic respiration yield a net gain of ATP molecules to be used as energy for living things. The processes of _________ would yield the highest number of ATP.
Aerobic respiration yields the highest number of ATP, up to 38 molecules per glucose molecule. It is more efficient than anaerobic respiration, which only produces 2 ATPs per glucose. Despite being slower, aerobic respiration can sustain energy production for extended periods when fuel is available.
Explanation:The processes of aerobic respiration would yield the highest number of ATP molecules. During aerobic respiration, if oxygen is available, it can yield a significant amount of ATP, approximately 36 to 38 molecules from one glucose molecule. Aerobic respiration is much more efficient in comparison to anaerobic respiration, which includes forms of fermentation where a net of only two ATPs is produced from a glucose molecule. Aerobic respiration takes place in the mitochondria and involves a series of chemical reactions which not only produce ATP but also release carbon dioxide and water as waste products.
It is also important to mention that aerobic respiration is slower but can sustain ATP production for hours as long as fuel is available, whereas anaerobic respiration is much quicker. This is why anaerobic respiration is beneficial for short bursts of energy such as in muscle cells during vigorous exercise when oxygen is limited. Still, due to the higher ATP yield, aerobic respiration is considered the primary method of energy production for aerobic organisms.
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Which of the following is not a type of galaxy?
Answer:
There are three main types of galaxies: Elliptical, Spiral, and Irregular. Two of these three types are further divided and classified into a system that is now known the tuning fork diagram. When Hubble first created this diagram, he believed that this was an evolutionary sequence as well as a classification.
Explanation:
____ are long, thin cells in the epidermal cell layer of roots
Which of the following is the bestdefinition of punishment?
A. An act done as the consequence of a behavior B. An effective way to teach self-control C. An ineffective way to reduce or change behaviors in the long term D. Another word for goal
What must happen to igneous rock before it can change into sedimentary rock?
A. It must be broken down into sediment
B. It must melt and become magma
C. It’s minerals must be dissolved in water
D. It must be exposed to high pressure and temperature
A. It must be broken down into sediment
The process of forming sedimentary rock involves the weathering and erosion of existing rocks, which results in the formation of sediments. These sediments can then undergo compaction and cementation to eventually become sedimentary rock.
which is most effective as a barrier for polar substances
Answer:
Explanation:
Furthermore, the most effective glycosylated compound is also far less ... In addition, effective strategies for breaching membrane barriers ...
Competitive exclusion does not result in _____.
A. destruction of a food resource
B. eviction of a population from a niche
C. extinction of a population
D. survival of both species
someone please answer :')
The correct answer is the destruction of a food resource. It can't be D because this is just one population not the whole species so both species do survive. One population does go extinct but like I said not the whole species so it can't be C. Lastly one population does become extinct so a population is evicted from its niche. Leaving only A.
Which statement describes one way that RNA differs from DNA?
Answer:
DNA contains the bases Adenine Thymine Guanine and Cytosine, whereas RNA contains the bases Adenine Uracil Guanine and Cytosine.
Explanation:
DNA is an organic compound whose molecules contain the genetic instructions that coordinate the development and functioning of all living things and some viruses. DNA genes are expressed through the proteins their nucleotides produce with the help of RNA. DNA has the function of storing genetic information, controlling cellular activity and producing RNA. It also has helical chains with thousands of nucleotides and its nitrogenous bases are cytosine, guanine, adenine and thymine.
On the other hand, RNA is a nucleic acid responsible for the synthesis of cell proteins. The various forms of RNA synthesize these proteins according to the information contained in DNA. RNA has the function of synthesizing proteins and transferring information from DNA to the protein synthesis site in the cell. Moreover, it has only one nucleotide-filled helical chain and its nitrogenous bases are cytosine, guanine, adenine and uracil.
how can rock layers tell the geologic history of an area
What is the difference between acid rain and acid deposition ???
a. there is no difference between the two terms.
b. acid rain is a border term that applies to many forms of acidity.
c. acid rain is a form of acid deposition.
d.acid deposition only applies to non-liquid forms of acidity.
Describe the weather conditions that characterize the chaparral biome.
Answer:
hot and dry summers
mild winters
most rain comes in winter
Explanation:
this is what edge 2020 is looking for.
hope this helps
Which of Earth’s layers is made of melted materials
A.The crust
B.The inner core
C.The lithosphere
D.The outer core
Answer:
the outer core
Explanation:
What are the parts of Earth's mantle? Inner core, asthenosphere, lithosphere Lithosphere, asthenosphere, mesosphere Crust, lithosphere, asthenosphere Mesosphere, asthenosphere, troposphere
Answer:
The correct answer is the lithosphere, asthenosphere, and mesosphere.
Explanation:
The above part of the core is considered as a mantle. This is basically rock containing iron, magnesium, silicon, oxygen, aluminum, and other minerals. The lithosphere is the top layer of the mantle and the crust, and form the very outer layers of Earth. The asthenosphere is the mechanically weak and easily deforming part of the upper Earth's mantle.
Mesosphere refers to the region of the Earth's mantle below the asthenosphere and the lithosphere, but above the outer core.
Thus, the correct answer is the lithosphere, asthenosphere, and mesosphere.
How much energy does a pair of 800w hair straighteners transfer every second?
. Which of these statements is correct regarding the location of glycolysis and cell respiration? Both glycolysis and cell respiration occur in the mitochondria. Glycolysis occurs in the mitochondria; Cell respiration occurs in the cytoplasm. Glycolysis occurs in the cytoplasm; Cell respiration occurs in the mitochondria.
Answer:
The answer is Glycolysis occurs in the cytoplasm; Cell respiration occurs in the mitochondria.
Explanation:
Glycolysis is the process by which cells acquire energy and occurs in the cell cytoplasm.
Cellular respiration is the process by which cells reduce oxygen and produce energy and water. These reactions are indispensable for cell nutrition. This process is carried out in the cellular mitochondria.
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