Why is the cell called the structural and functional unit of life Brainly?
Answers
The cell has the ability to carry out all the processes of life, such as nutrition, excretion, respiration, etc. Therefore it is called the active part of life. A cell is the smallest unit of life and all living things are made up of cells. So the cell is called a living system.
The body or structure of any living organism is made up of cells. These cells are also responsible for carrying out all the biological functions and regulations in the organism. Because of these features, the cell is called a living and working system.
The cell is the most important part of our body. Each organ in our body is made up of cells. Cells divide and multiply to make new organs and gates.
Cell is called as active living unit due to following reasons-
A cell is known as a living system and function because all living things are made of cells.Cells are very important to carry out various life processes that are required to sustain life on earth.Also, cells provide structure and organization, process nutrients and turn it into useful energy.Most organisms are made up of specialized cells that perform specific functions.Always remember that, Cell is called as a living and functional system because living organisms/organisms consist of cells and all the physiological, biochemical, genetic and metabolic functions are carried out in the cell. It is believed to be the smallest functional unit that can exist independently.
The largest cell in the human body is egg. An ovum is also known as an egg cell and is a cell in the female reproductive system. Ovum is believed to be 20 times larger compared to sperm cells.
Remember, the Cell has the ability to live on its own and can perform all the functions that are important to a living being. A cell can do nutrition, respiration, transport, excretion, and reproduction just like an organism does. Unicellular organisms can exist as independent cells indicating the ability of the cell to exist. Therefore, the cell is called as the basic unit/type of living system. Note that all living things contain the basic unit of life which is the cell.
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Related Questions
which of the following is true about insect consumption? group of answer choices ounce for ounce, some insects have a higher protein content than beef. all of these are correct. insects produce a lower amount of greenhouse gases than traditional animal sources of protein. edible insects are a significant source of protein globally. in some african communities, insects make up about 10% of total protein intake.
Answers
All of the given statements are true about insect consumption
What are some facts about insect consumption?Ounce for ounce, some insects have a higher protein content than beef.
Insects produce a lower amount of greenhouse gases than traditional animal sources of protein.
Edible insects are a significant source of protein globally.
In some African communities, insects make up about 10% of total protein intake.
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For the lac genotypes shown below, predict what is happening with the structural gene (Z).
Sort the genotypes into the appropriate categories.
i(s) mutant
z(-) mutant
p(-) mutant
o(c) mutant
p(-)o(c) mutant
i(s)o(c) mutant
i(-) mutant
Fully Wild-type
Categories:
Constitutively expressed
Fully repressed
Induced in the presence of lactose
Induced in the presence of glucose
Repressed in the presence of lactose
Answers
The lac genotypes can be sorted into the following categories based on the behavior of the structural gene (Z):
- Constitutively expressed: i(s) mutant
- Fully repressed: z(-) mutant, p(-) mutant, p(-)o(c) mutant
- Induced in the presence of lactose: o(c) mutant, i(s)o(c) mutant
- Induced in the presence of glucose: none of the genotypes listed
- Repressed in the presence of lactose: i(-) mutant
- Fully Wild-type: none of the genotypes listed (assumed to be constitutively expressed)
Based on the lac genotypes provided, I have sorted them into the appropriate categories as follows:
Constitutively expressed:
- i(s) mutant
Fully repressed:
- z(-) mutant
Induced in the presence of lactose:
- Fully Wild-type
- o(c) mutant
- p(-)o(c) mutant
- i(s)o(c) mutant
Induced in the presence of glucose:
- None of the provided genotypes
Repressed in the presence of lactose:
- p(-) mutant
- i(-) mutant
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what do the three major checkpoints for cell division have in common?
Answers
Answer:
There are three major checkpoints in the cell cycle: one near the end of G1, a second at the G2/M transition, and the third during metaphase. Positive regulator molecules allow the cell cycle to advance to the next stage. ... Each successive cell division will give rise to daughter cells with even more accumulated damage.
Explanation:
How does differential gene expression lead to different cell types in a multicellular organism?
Answers
Answer:
Differential gene expression defines the specific structure and function of a cell by making certain genes active and other genes permanently inactive. The reason why a liver cell looks, and functions differently than a skin cell is because different genes are expressed in the nuclei of liver and skin cells.
Explanation:
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sana nakatulong
Which are functions of small RNAS?
Select all that apply.
to build proteins using codons
to cause a protein complex to break down mRNA molecules
to carry all the information necessary to build proteins
to prevent mRNA molecules from being translated
Answers
Small RNAs serve a variety of purposes, like option B: to cause mRNA transcripts to be broken down by a protein complex, and option D: mRNA molecules from being translated.
By attaching to particular mRNAs and either preventing or triggering the destruction of their translation, small RNAs, such as microRNAs and siRNAs, can control the expression of genes. They neither carry the information required to construct proteins on their own, nor do they construct proteins using codons.
Numerous biological processes require RNA, also known as ribonucleic acid, which is a single-stranded nucleic acid. Its structure is comparable to that of DNA, except instead of deoxyribose and thymine, it contains the sugar ribose and the nucleotide uracil.
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In 1665, what structures did Robert Hooke observe through a microscope?
Answers
Answer:
Cells
Explanation:
Hooke is well-known for first having discovered... I hesitate to say discovered so let's say observed... the first cells under a microscope. Under the naked eye, you cannot see cells, so his discovery was surprising and seminal.
this is the structure of ibuprofen. it has limited solubility in water (21 mg/l at ph 7) and has a pka of approximately 5. you have a headache but you have to study for the cell bio midterm, and you decide to take an ibuprofen pill. human cells have no transporter for ibuprofen. how then, does this molecule cross the intestinal epithelial cell membranes to get from your gastrointestinal tract into your bloodstream?
Answers
A non-steroidal anti-inflammatory medicine (NSAID) called ibuprofen is used to treat inflammation, fever, and discomfort. Ibuprofen can be successfully absorbed by the intestines and transferred across the intestinal epithelial tissues into the circulation despite its poor solubility in water.
Passive diffusion is one method through which ibuprofen can diffuse through the intestinal epithelial membrane. Molecules travel by a process called passive diffusion from a region with a higher concentration to one of a lower concentration. Ibuprofen is in the ionised state at the pH of the digestive system (hcl 7), which makes it much more hydrophobic and thus more able to pass the liposome cell membrane. Motrin has a pKa of roughly 5. Facilitated diffusion is another method by which ibuprofen can pass through the intestinal epithelial cell membrane. By means of certain transporters, chemicals can penetrate a cell membrane through a process called "facilitated diffusion." Ibuprofen does not have a unique transporter in human cells, but it is hypothesised that it can penetrate the cell membrane by attaching to the same transporters that allow other medications and chemicals, including amino acids and glucose, to enter the body. It's also important to remember that ibuprofen can be taken with meals because doing so might boost the drug's solubility and therefore its bioavailability. It's crucial to note that this explanation has been simplified, and the precise method through which ibuprofen works.
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What assumptions do you think are made in predicting population growth into the future?
Answers
Population growth, requires two core assumptions: birth and death rate, which will acount for population growth and decrease, respectively. As medicine develops, it is expected that there will be more succesful births, and that death rate will decrease. Regarding death rate, lifespan predictions are important factors that are required for population growth. Lifespan predictions might vary between countries, since income and country development are important issues influencing population lifespan.
how does natural selection led to the adaptation of the cliff swallow population along l-80?
Answers
Answer:
0110011101101111001000000110011001110101011000110110101100100000011110010110111101110101011100100010000001110011011001010110110001100110
Explanation:
Explain the difference between obligate and facultative mutualism
Answers
In obligate mutualism, one partner cannot complete its life cycle on its own, and in facultative mutualism partner do not necessarily need another partner for survival.
What is mutualism?The interaction between two species where both the species are benefited from the interaction. It is the common ecological interaction example, including mycorrhizae.
Types of mutualism:
resource-resource relationshipservice-resource relationship service-service relationship.Therefore, when species are dependent on each other it is obligate mutualism and when they are independent of each other, it is facultative mutualism.
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which investigation will help determine whether the new membrane protein is a channel protein involved in membrane transport?
Answers
One investigation that could help determine whether the new membrane protein is a channel protein involved in membrane transport is to use patch clamping to determine if the protein is ionic.
This technique can be used to measure the ionic current flowing through a protein in a cell membrane. If the protein is ionic, it is likely that it is a channel protein. If the protein is not ionic, it is less likely that it is a channel protein.
Other investigations that could be done include looking at the protein's structure using X-ray crystallography or NMR spectroscopy to see if it has the characteristics of a channel protein, and performing mutagenesis experiments to see if the protein's function changes when mutations are introduced.
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Which of the following of nondisjunction examples are right
Answers
A scientist makes the following claim:
Claim: Increasing average global temperatures are causing increases in the number of severe flooding events worldwide.
What other data, in addition to the chart "Severe Flooding Events Worldwide," does the scientist need to support this claim?
A
data showing that average global temperatures increased between 1980 and 2014
B
data showing that average global temperatures increased before 1980
C
data showing that average global temperatures decreased after 2014
D
data showing that average global temperatures decreased between 1980 and 2014
Answers
other data, in addition to the chart "Severe Flooding Events Worldwide," does the scientist need to support this claim is data showing that average global temperatures increased between 1980 and 2014. Thus option A is correct.
what is temperature ?
Temperature is the measure of hotness or coldness expressed in terms of any of several arbitrary scales and it indicate the direction in which heat energy will spontaneously flow from a hotter body to a colder body.
It is not the equivalent of the energy of a thermodynamic system like burning match is at a much higher temperature than an iceberg whereas the total heat energy contained in an iceberg.
Temperature which is similar to pressure or density known as intensive property that is independent of the quantity of matter is considered as distinguished from extensive properties, such as mass or volume.
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Which three statements are true about the energy flow in an ecosystem?
Answers
Answer:
main source of energy for an ecosystem is the sun producers convert radiant energy to chemical energy the maximum amount of biomass is at the lowest trophic level
Answer:
A,B and E
Explanation: hope it helps you :)
MULTIPLE ALLELES INHERITANCE-BLOOD TYPES
Is it possible for a mom who is IaIa and a Dad who is IbIb have a child who is type B ?
Answers
Answer:
No
Explanation:
A person having blood type B has either of the two genotypes
IbIb
OR
OIb
O represents the blood group B
The genotype of two parents is IaIa and IbIb
Gametes of IaIa are Ia, Ia
Gametes of IbIb are Ib, Ib
IaIa * IbIb
IaIb, IaIb, IaIb, IaIb
All the offspring have genotype AB
Hence two homozygous parents for Blood type A and B will not have any offspring with blood type B
Consider a major change in environment if there is not organism in a population have traits that allow them to still continue to survive and reproduce what would happen in population ?
Answers
Answer:
See the answer below
Explanation:
If a major change happens in an environment and there is no organism among the population of organisms in that environment that have traits that allow them to continue to survive despite the change, it means that all the organisms within the population will be wiped out by the change.
Survival genes allow organisms to adapt to changes within their environment. Without these genes, any change to the environment would lead to the death of the organisms. Hence, if the entire population lacks survival/adaptive gene to counter a particular change in the environment, it means they will cease to exist in that environment.
how do I take a picture of a chart and then type the question under it for someone to answer?
Answers
Describe 3 alternative energy technologies and identify two ways that hydrogen gas could be used as a fuel in the future
Answers
Answer:
hope it helps..
Explanation:
In the future, hydrogen will join electricity as an important energy carrier, since it can be made safely from renewable energy sources and is virtually non-polluting. It will also be used as a fuel for 'zero-emissions' vehicles, to heat homes and offices, to produce electricity, and to fuel aircraft.
Which of the following would be considered a biotic factor in an ecosystem?
water
flower
fog
soil
Answers
Biotic is referring to living things. Water, fog, and soil are referred to as abiotic because they are not living
Answer:
flower
Explanation:
biotic is a living organism including plants of any type fog spil and water are not living
which two cell components have the same function but for different chemical components? question 15 options: lysosome and peroxisome vesicles and mitochondria the golgi apparatus and the nucleus ribosomes and mesosomes
Answers
Two cell components have the same function but for different chemical components are lysosome and peroxisome.
In all eukaryotic cells, lysosomes and peroxisomes are organelles with a wide range of roles. Hydrolytic enzymes (lysozymes) found in lysosomes break down molecules, whereas peroxisomes have enzymes like catalase that break down hydrogen peroxide (H2O2) into water and oxygen and neutralise toxicity. On the other hand, melanin is a substance that helps to shield the skin from damaging UV rays. On the other hand, excessive melanin in humans can cause hyperpigmentation or skin cancer. Though melanin reduction does not imply their synthesis, new substances have already been found to inhibit tyrosinase in melanogenesis.
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What is the relaxed form of dna in a cells nucleus?
Answers
Answer:
The relaxed form of DNA that can be found in the nucleus is referred to as chromatin. This form of DNA is observed when the cell is not dividing.
Explanation:
hope this helps
The relaxed form of DNA in a cell's nucleus is called chromatin.
CHROMATIN:Chromatin is a complex of DNA and histone proteins within the cell's nucleus. The DNA is too long to fit into the cell's nucleus, hence, is coiled around proteins called histones. This complex forms the structure called chromatin, which then condenses during the prophase stage of cell division to form a more compact structure called chromosome.Therefore, it can be said that the relaxed or uncondensed form of DNA in the nucleus of a cell is called chromatin.
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Although prokaryotic and eukaryotic cells seem very different, they actually have some similar structures. Select the structures found in both.
Question 1 options:
cell membrane, DNA, ribosomes
cell membrane, DNA, mitochondria
cell membrane, nucleus, ribosomes
cell wall, circular chromosome, RNA
Answers
Answer:
im pretty sure b, sorry if its wrong lol
Answer:
Cell membrane, DNA, ribosomes
Explanation:
The other person was wrong-
what is pre. existing cell.
Answers
Answer:
hey, here is your answer mate..!
Explanation:
All known living things are made up of one or more cells. All living cells arise from pre-existing cells by division. The cell is the fundamental unit of structure and function in all living organisms.
hope it helps mark as brainlist please
Answer:
The third part of the cell theory definition states that all cells come from preexisting cells. This means that cells don't just appear out of thin air (known as “spontaneous generation”). New cells are always made from current cells.
please answer!! ASAP
1. What is biodiversity?
a) The animals that live only in rain forests.
b) The rich variety of live organisms in every
ecosystem on Earth.
c) The animals and plants species that live
only in your backyard.
2. Why do we need biodiversity?
a) it provides us with the food we need to eat
b)it provides us with virtually all the things we need to stay alive
c)so we have plenty of trees to use for fuels and materials
3.which of the following places has the highest biodiversity?
a)madagascar &indian ocean islands
b)tropical andes
c)caribbean islands
4. how many biodiversity ‘hotspots’ are there in the world?
a)12
b)25
c)34
5. in these ‘hotspots’ how much of the worlds species are found there?
a)10%
b)25%
c)50%
6. what does ‘endemic’ mean?
a) when a lot of people fall ill
b) when something is only found in one place
c) when a disease spreads throughout the world
7. why is biodiversity under threat?
a) habitat destruction
b)introduction of exotic species
c) both of the above and more
8. what can you do to help save biodiversity?
a) reduce, reuse, recycle
b) plant trees, clean local rivers and parks and protect habitats
c) all of the above
Answers
1.B
2.B
3.A
4.36
5.B
6.C
7.C
8.C
thanks me
what percent of the weight of a typical animal is oxygen?
Answers
Answer:
Occurrence and properties. At 46 percent of the mass, oxygen is the most plentiful element in Earth's crust.
Atomic weight: 15.9994
Electron config: 1s22s22p4
Explanation:
What is the location of the stem where the leaf connects
Whorled
Node
Root
Arrangement
Answers
Which two statements correctly describe the theory of plate tectonics?
O A. It does not explain the discovery of one type of fossil on multiple
continents.
B. It explains how continents have shifted over time.
O C. It proves that the theory of continental drift is incorrect.
D. It was developed based on data that scientists collected about
the ocean floor.
Answers
Answer:
B and D
Explanation:
The following two statements correctly describe the theory of plate tectonics:
It explains how continents have shifted over time.It was developed based on data that scientists collected about the ocean floor.What is the theory of plate tectonics?Plate tectonics is the theory that ties continental motion and seafloor spreading together. Lithosphere is topped with oceanic and/or continental crust to form plates. Seafloor spreading causes plates to move around on the Earth's surface. Seafloor spreading is caused by convection in the mantle. At mid-ocean ridges, oceanic crust is formed. Over time, the crust slides away from the ridge.hence the continents move due to plate tectonics.learn more about theory of plate tectonics here:
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Our _____ identity is determined by our height, weight, sex, age, and other corporeal characteristics.a. Physical Abilityb. Age c. Classd. Gender
Answers
Our physical identity is determined by our height, weight, sex, age, and other corporeal characteristics.
What is physical identity? Physical identity is determined by one's body structure, body measurements, age, and physical abilities, as well as corporeal characteristics. Physical characteristics that are quantifiable or measurable are referred to as corporeal characteristics.
These characteristics are not limited to height, weight, skin color, hair color, and so on, and they are determined by one's genetics, environment, and lifestyle. Gender is one of the corporeal characteristics that play a significant role in shaping our physical identity.
One's gender determines how they are perceived by society, as well as their access to resources and opportunities. Height, weight, and physical abilities are also significant corporeal characteristics that determine our physical identity.
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help me fill this out for my sister thanks
Answers
b
Explanation:
Cause a process happens molecules and the membranes
Answer:
i hope this will help you
Explanation:
without osmosis the plants would die.Without osmosis, it would be impossible for plants to attain turgidity and thats why plants would die
osmosis is the movement of water to evenly distributed itself actually osmosis is the movement of water across semi-permeable membrane from a solution of higher solute concentration to a solution of lower solute concentration
cystic fibrosis is a genetic disorder that creates excessive mucus in human organs. what is a person with this disorder missing? question 13 options: the contractile proteins used in muscle movement the gene that codes for an important cell membrane protein an important organ that breaks down mucus an important protein easily obtained through food
Answers
Cystic Fibrosis is a genetic disorder that creates excessive mucus in human organs, a person with this disorder is missing:
The gene that codes for an important cell membrane protein is called Cystic Fibrosis Transmembrane Conductance Regulator (CFTR).
CFTR is a chloride channel that regulates the movement of chloride ions across cell membranes, this channel is responsible for maintaining the proper balance of salt and water in the body.
The mutation of the CFTR gene leads to the malfunction of the chloride channel and results in the production of thick, sticky mucus that clogs the airways, the pancreas, and other organs.
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