what are the characteristics of a cancer cell
Answer:
Cancer cells grow and divide at an abnormally rapid rate, are poorly differentiated, and have abnormal membranes, cytoskeletal proteins, and morphology. The abnormality in cells can be progressive with a slow transition from normal cells to benign tumors to malignant tumors.
Essentially, cancer is a disease of mitosis. As such, it occurs when normal cells are transformed into cancerous cells and proliferate uncontrollably. Cancer cells, therefore, are normal cells whose genes (several genes) have been damaged/mutated which in turn cause the cell as a whole to respond differently to signals that control the lifespan of a normal cell.
Because they do not respond to signals/instructions that control the development and death of normal cells, cancer cells continue to grow and proliferate and even invade other parts of the body. In the process, some of the cancer cells end up forming tumors not only at the first region to be affected (lungs etc) but also result in secondary malignant growths away from the primary site known as metastasis....
Some of the main characteristics of cancer cells that differentiate them from other normal cells include:
-Abnormally shaped and significantly vary in size
-Incapable of self-repair
-Do not go through normal apoptosis
-Do not perform normal cell functions (as is the case with specialized cells)
Four students were asked to name the parts of an atom that determine the atom’s identity and chemical properties. The students’ responses are shown in the table below.
Answer:student 2
Explanation:
how does carbon cycle illustrate the major features of a biogrochemical cylce?
Name 4 effects that European colonization has had on African countries.
Answer:
On the African continent the Europeans seized land from the Africans to establish plantations for the growing of cash crops and forced the people to work on these plantations for a meagre. The African culture was diluted, traditions were taken away and their ways of life were destroyed
Explanation: they took over traditions and there culture was diluted and it destr there way of life
Why Paramecium never get old?
Answer:
because it keeps on dividing into new paramecium by reproduction.
Answer:
Paramecium never gets old because it keeps on dividing into new paramecium by reproduction.
Explanation:
Which statement accurately describes the way that adenosine triphosphate (ATP) transfers energy within a cell?
a. ATP helps to maintain the needed fluidity of cell membranes.
b. ATP is used to both capture and to transfer cellular energy.
c. An ATP molecule breaks down into glucose.
d . An ATP molecule is created during photosynthesis in the chloroplast.
Answer:
B
Explanation:
I got this right on edge 2020
DNA is a polymer, which means that it's made up of many repeating single units (monomers). What are the monomers called?
A. monosaccharides
B. phospholipids
C. amino acids
D. nucleotides
Answer:
D. Nucleotides.
Explanation:
Sydney drew a flow chart to illustrate the nitrogen cycle. Flow chart of the nitrigen cycle. Box 1: uppercase X. Box 2: Bacteria fix nitrogen from the air. Box 3: uppercase Y. Box 4: Consumers eat other organisms. Box 5: Decomposers break down dead organisms. Which labels best complete the flow chart? X: Producers undergo photosynthesis. Y: Nitrogen compounds are released into the air. X: Nitrogen compounds are released into the air. Y: Producers undergo photosynthesis. X: Free nitrogen is in the atmosphere. Y: Producers absorb nitrogen compounds through their roots. X: Producers absorb nitrogen compounds through their roots. Y: Free nitrogen is in the atmosphere.
Answer:C
Explanation:
I think it’s C
The biological procedure of nitrogen fixation alters nitrogen gas into a form that is advantageous to plants and other microbes. Thus, option C is correct.
What is the regulation of nitrogen fixation in higher plants?In response to ambient oxygen and ammonium levels, transcriptional regulation of nitrogen fixing occurs.
It is advantageous for bacteria to suppress transcription when oxygen levels are high because the nitrogenase components are oxygen labile.
Rhizobium bacteria are involved in nitrogen fixation. These bacteria are found in the roots of leguminous plants, such as pea and bean plants, and by fixing nitrogen in the soil through the use of certain enzymes.
Therefore, In this process, atmospheric nitrogen gas is transformed into ammonia and other nitrogenous molecules that are related.
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What is an electromagnetic force?
Answer:
Electromagnetism is a branch of physics involving the study of the electromagnetic force, a type of physical interaction that occurs between electrically charged particles.
Explanation:
Answer:
The correct answer is C on
E d g e n u i t y
Explanation:
Trust me :)
Explain how the visible external features of a green dicotyledonous leaf aid the process of photosynthesis.
Answer:
The green appearance of the leaf is an effect of the chloroplast inside. Chloroplast inside the leaf absorbs the sunlight, which is a needed ingredient for photosynthesis to occur.
Explanation:
Hope this helps!
In insects, a Hox gene called Ubx controls the development of legs in the
abdomen. Which is the most likely result if the Ubx gene was activated either before or after
it is normally activated in the sequence of Hox gene expression?
Answer:
It's D
Explanation:
:)
Questien 5 (Essay Worth 4 points)
(03.02 HC)Compare and contrast open, closed, and isolated systems. Be sure
to
discuss the exchange of energy and exchange of matter, and provide at least one
example of each.
Answer:
Please mark as brainliest!!!
Explanation:
Answer;
Open system; can exchange both matter and energy; An example is a living organism such as human being, we actively interact with environment, which results in changes to both the environment and human being, for instance we eat to acquire energy.
Closed system; can exchange energy but not matter; An example is a saucepan, the saucepan allows energy transfer as the saucepan heats up and heats the contents inside it, putting a lid on it, prevents matter from entering and becomes a closed system.
Isolated system; Can exchange neither energy nor matter. For example is a thermos. if tea is poured into a thermos or an insulated container there is no exchange of heat or matter.
Sickle cell anemia is a genetic disorder caused by recessive alleles that can cause hemoglobin molecules to
stick together. The gene for normal hemoglobin is dominant. If a hybrid man and a heterozygous woman have
a child, what is the chance that their child will have sickle cell anemia?
100%
25%
50%
0%
GREETINGS!
The sickle cell anemia allele is autosomal, meaning it can be found on one of the other 22 pairs of chromosomes, but not on the X or Y chromosome.
Hybrid trait is a heterozygous trait i.e. pair of dominant and recessive allele so that means they both man and woman are carriers, so when both the parents CARRIERS there are 25 % for children to be affected by this disorder
WHAT ARE ALL SCENERIOS FOR SICKLE CELL ANEMIA?
Scenario 1. Neither parent has the recessive sickle cell allele. None of their children will have sickle cell anemia or be carriers of the recessive allele.
Scenario 2. One parent is a carrier while the other isn’t. None of their children will have sickle cell anemia. But there’s a 50 percent chance that children will be carriers.
Scenario 3. Both parents are carriers. There’s a 25 percent chance that their children will receive two recessive alleles, causing sickle cell anemia. There’s also a 50 percent chance that they will be a carrier. Lastly, there’s also a 25 percent chance that their children won’t carry the allele at all.
Scenario 4. One parent isn’t a carrier, but the other has sickle cell anemia. None of their children will have sickle cell anemia, but they’ll all be carriers.
Scenario 5. One parent is a carrier and the other has sickle cell anemia. There’s a 50 percent chance that children will have sickle cell anemia and a 50 percent chance they’ll be carriers.
Scenario 6. Both parents have sickle cell anemia. All of their children will have sickle cell anemia.
I HAVE MENTIONED ALL THE SCENERIOS POSSIBLE IN SICKLE CELL
HOPE THIS HELPS YOU!
Which describes the world’s oil reserves?
They are being consumed slowly.
They are a renewable resource.
They are equally distributed worldwide.
They formed more than 500 million years ago.
Answer:
C. They are equally distruuted worldwide. Im not sure if its correct sorry if im wrong.
Explanation:
Answer:They are being consumed slowly.
Explanation: one is half true 2 are false
(Edited)
What is the term for an organism that makes its own source of chemical energy?
protist
B chloroplast
decomposer
D producer
Answer:
Producer
Explanation:
Chlorophast is something in a plant. Decomposers eat dead stuff and a protist is any eukaryoticorganism (that is, an organism whose cellscontains a cell nucleus) that is not an animal, plant, or fungus. So yeah. Producer. It's the only thing there that actually produces someting for its self.
The producer is the term for an organism that makes its own source of chemical energy. So the correct option is D.
What is a primary producer?
The primary producers or autotrophs are the organisms that capture their energy from sunlight or other chemical sources derived from nonliving or inorganic sources for their nutrition.
Commonly known autotrophs are Algae and higher plants. Some bacteria and protists are also important autotrophs living in running waters. The heterotrophs obtain energy and materials by consumption of living or dead organic matter.
All animals are heterotrophic organisms. Heterotrophs also include fungi, protists, and some bacteria that depend on dead organic matter for their nourishment. Usually, bacteria make the organic matter more nutrient-rich and also more accessible to other consumers.
These autotrophs and microbial heterotrophs work together to constitute the basic resources of energy that help in supporting higher trophic levels.
Therefore the correct option is D.
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The life function responsible for the coordination and control of all life activities in an organism is known as
Answer:
Regulation
Explanation:
Answer :c
Explanation:
i don’t know the answer
What happens to a lion’s energy costs after a failed hunt?
Answer:
it wasted burned out
Explanation:
Answer:
Explanation:
They have to return empty handed and get the energy to do it again.
When energy is NOT needed to move molecules across the cell membrane, the process is called _____ . *
Answer:
Passive mechanisms like diffusion use no energy, while active transport requires energy to get done.
Explanation:
which of the following describes a form of active transport
Answer:
the movement of ions or molecules across a cell membrane into a region of higher concentration, assisted by enzymes and requiring energy.
Explanation: Thats the definition of active transport or ATP
It requires energy and moves molecules against a concentration gradient. Option 1 is correct.
Active transport refers to the movement of molecules or ions across a cell membrane against their concentration gradient, requiring the expenditure of energy. Option A correctly describes active transport by highlighting the key characteristics of this process. Active transport mechanisms, such as pumps and carriers, utilize cellular energy, typically in the form of ATP, to transport molecules or ions from an area of lower concentration to an area of higher concentration. This process allows the cell to maintain concentration gradients that are necessary for various cellular functions.
Options B, C, and D describe passive transport processes. Option B describes simple diffusion, where oxygen molecules move from an area of higher concentration to an area of lower concentration without the need for energy input. Option C describes facilitated diffusion, where glucose moves down its concentration gradient with the help of specific transport proteins. Option D also describes passive diffusion, where carbon dioxide molecules move along their concentration gradient without the requirement of energy.
In summary, option A correctly describes a form of active transport by emphasizing the need for energy and the movement against a concentration gradient.
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The complete question is:
Which of the following describes a form of active transport?
A) It requires energy and moves molecules against a concentration gradient.B) Oxygen (O₂) diffusing across a cell membrane from an area of higher concentration to an area of lower concentration.C) Glucose being transported into a cell along its concentration gradient.D) Carbon dioxide (CO₂) being transported out of a cell along its concentration gradient.HELP ME! PLEASE! PLEASE! PLEASE!
Answer:
B and b: Genotype
Dark fur, White fur: Phenotype
BB - Hozygous Dominant
Bb- Heterozygous
bb- Hozygous Recessive
Your heart rate increases when exercising because:
a. your muscle cells need more oxygen
b. your muscle cells start growing faster
c. your heart creates more blood
d. your heart sends more blood to the muscle cells
WILL GIVE BRAINLIEST!!!!!!
A functional group is a specific group of bonded atoms that always has the same chemical properties and always reacts in the same way.
True
False
Lactase breaks down a sugar found in dairy products known as lactose. Some people are lactose intolerant, and this can be due to not having enough lactase production. People who are lactose intolerant may not feel well after eating foods containing lactose.
Answer:
enzyme: Lactase
substrate: Lactose
Explanation:
Identify the enzyme: Enzymes are the proteins that accelerate the rate of reaction. Enzymes are identified with the suffix - ase along with the name of the substrate. So, in the given example: the enzyme is Lactase.
Identify substrate: The substrate is defined as the molecule on which an enzyme acts. The enzyme binds with the substrate through its active site and accelerates the reaction. So, in the given example, Lactose is a substrate on which the enzyme lactase acts.
Relationship between the substrate and enzyme: When an enzyme binds its substrate, it forms an enzyme-substrate complex. The enzyme consists of an active site at which substrate binds to the enzyme and substrate causes a conformational change to enzyme resulting in enzyme-substrate complex.
Is the correct answer b? Will award 80 points :))
Yesss^ I believe it’s b too I calculated everything and I got the same answer as b has :)
2. Mia takes an early morning hike through a forest near her home. She spots white-tailed deer browsing on undergrowth vegetation and a raccoon eating an apple and tuna that were carelessly left behind by another hiker. Mia discovers bright yellow mushrooms growing on a rotting log, and she gazes up at oak trees rising 100 m above the ground. Mia shares her observations with workers at the local nature center. Which would Mia share with the center's ecologist?
A. All the organisms spotted during the hike are heterotrophs.
B. The oak trees and mushrooms are two types of forest autotrophs.
© The raccoon is an omnivore because it eats plants and animals.
D. The white-tailed deer are considered carnivores of forest plants. Explain.
Answer:
© The raccoon is an omnivore because it eats plants and animals.
Explanation:
An omnivore is an organism that obtains energy and nutrients by eating both plants and animals. Raccoons are omnivores (although often they are classified as carnivores). A raccoon can eat different types of animals such as arthropods, fish, frogs, etc, as well as plant matter (i.e., fruits and vegetables).
Direction:In the given illustrations,identify which are elements and compounds.
witch label belongs in the area marked X?
A. breath in from atmosphere
B. produce themselves
C. eat other organisms
D. absorb from soil
Answer:
c eat other organisms I think
What is bond energy?
Answer:
In chemistry, bond energy, also called the mean bond enthalpy or average bond enthalpy is the measure of bond strength in a chemical bond. IUPAC defines bond energy as the average value of the gas-phase bond-dissociation energy for all bonds of the same type within the same chemical species.
The cell wall would prevent a plant cell from bursting in a___________solution.
Answer:
hypotonic
Explanation:
i think thats right
Which organism has the least visible postanal tail as an adult.
Answer:
human
Explanation:
Answer: human
Explanation:
I’m guessing human because we don’t have tails and we’re not animals so yea btw I’m just guessing