Answers
b) the major component of cell membranes are lipids. they have two groups attached to them which are called “hydrophobic fatty acid tails” & “hydrophilic head”. B cells are called lymphocytic cells which provide immunity by secreting antibodies. cancer cells are cells which continuously repeat itself to form a tumor structure. when the polar parts interact hydrophobic tails are lined up with one another. they form a membrane which diffuses creating a membrane of hydrophilic head on two sides facing water. this a brief explanation of how polar & the nonpolar parts combine are explained.
Related Questions
A restaurant owner wants to serve fresh-cut fruit. What factors
might be considered in choosing a recipe and preparation method?
Answers
Answer:
A factors might be considered in choosing a recipe and preparation method is discussed below in details.
Explanation:
Explanation:
1.Oxidation- some fruit after slicing on vulnerable to air starts to oxidize this drives to a shift of color, this color shift could differ from light brownish to blackish brown in some fruits such as apple this could perform it appealing to the customer.
2. Shelf life- How prolonged can the fruits begin after disclosure to air before it starts to lose its gustation believing they are not eaten quickly. This has to acknowledge in choosing fruits.
3. Time- How long will it take to make and prepare the fruits ready, some fruits demands some thorough cleansing, expert cutting skill
if all will be possible and will match up the time needed for the fruits to be served.
Which of the following statements is true regarding electromagnetism?
All wires are electromagnetic.
Only wires carrying current are electromagnetic.
Only iron wires are electromagnetic.
Only copper wires are electromagnetic.
Answers
Answer:
Only iron wires are electromagnetic.
how do the weight of objects on earth compare the weight of the objects on the moon why do you think this is
Answers
Answer:
Being that the moon has a gravitational force of 1.622m/s 2, we multiply the object's mass by this quantity to calculate an object's weight on the moon. So an object or person on the moon would weigh 16.5% its weight on earth. Therefore, a person would be much lighter on the moon. Conversely, a person is 83.5% heavier on earth than on the moon.
Explanation:
hope this helps you out love!! <3
Answer:
weight of objects on EARTH> weight of objects on MOON
Explanation:
weight= mass * gravity
assuming both objects have the same mass, the environment with greater gravity will result in a greater weight
gravity of earth > gravity on the moon
so
weight of objects on EARTH> weight of objects on MOON
What substances are combined with sunlight in the process of photosynthesis?
A. carbon dioxide and water
B. water and simple sugar
C. carbon dioxide and oxygen
D. oxygen and simple sugar
Answers
Answer:
A. carbon dioxide and water
If a father has type A blood and the mother has Type AB blood, they would NOT have a child with which of the following blood types?
AB
A
B
O
Answers
Answer:
If a father has type A blood and the mother has type AB blood, they cannot have a child with blood type O, although depending on the father's genotype, they may not have children with a B blood type either.
Explanation:
Blood type is determined by the presence or absence of surface antigens A and B, which is genetically determined and establishes the pattern of inheritance.
Alleles that define the presence of antigens A and B are co-dominant, while the absence of antigens - as in blood type O - is a recessive trait.
Type A contains antigen A and its genotype can be A|A or A|O. Type B contains the B antigen, whose genotype can be B|B or B|O. Blood type AB contains both antigens and a single genotypic expression A|B Type O blood lacks surface antigens, with genotype O|O.The father with blood type A can have two genotypes, A|A or A|O, which raises 2 possible scenarios:
1. Father A|O with mother A|B
Alleles A O
A A|A A|O
B A|B B|O
In this case there is no chance of having a child with blood type O, 50% chance of having children with blood type A, 25% B and 25% AB.
2. Father A|A with mother A|B
Alleles A A
A A|A A|A
B A|B A|B
50% chance of having a child with blood type A and 50% with blood type AB. In this case there is no chance of having children with blood type O or B.
The pancreas is a human body organ that produces digestive enzymes and two very important hormones : insulin and glucagon. These two hormones work together to regulate the level of the sugar glucose in the bloodstream. If glucose levels in the bloodstream are too low, the pancreas secrets glucagon which causes the glucose level to increase. if blood levels are too high, the hormone insulin will lower the glucose level. if a person has just eaten a meal containing a large amount of sugar and other carbohydrate, which statement best describes how the pancreas will respond.
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Answer:
If you have just eaten large amounts of sugar, your pancreas will in return release a large amount of insulin to even it out again.
Explanation:
Why does calcium concentration matter to a cell?
Answers
Answer:
HOPE IT MAY HELP YOU
Explanation:
Calcium-based signaling is used in many cellular and neuronal processes to initiate rapid responses to extracellular signals. Cells therefore maintain tight control over intracellular Ca2+ levels, using a variety of channels and pumps.
Answer:
to answer your question it is
Explanation:
Calcium-based signaling is used in many cellular and neuronal processes to initiate rapid responses to extracellular signals. Cells therefore maintain tight control over intracellular Ca2+ levels, using a variety of channels and pumps. ... neuron
The function of the testes and ovaries in reproduction
Answers
Testes
-Male reproductive gland that produces sperm and male hormones
Ovaries
-Female reproductive gland that produces eggs and female hormones
Hope this helped!
PLEASE HELP AND THANK YOU!!!
Think about the factors that will influence the evolution of humans in the future. Name one factor that would exert influence through the process of natural selection and one factor that would exert influence through artificial selection.
A. natural selection: genetic engineering; artificial selection: demands placed on the brain
B. natural selection: individual mating choice; artificial selection: diseases
C. natural selection: diseases; artificial selection: genetic engineering
D. natural selection: demands placed on the brain; artificial selection: diseases
Answers
Part C
Projected values are only estimates. Can you think of either a natural or artificial factor that could increase or decrease the actual amount of wind energy the United States produces in the future?
Edmentum sample explanation:
Technological advancements in the future could lead to the production of higher-efficiency turbines, which could generate more electricity than originally predicted. Climate changes over time could affect wind speeds in a region, leading to higher or lower energy production.
The factors that would exert influence through the process of natural selection are a natural selection: diseases; artificial selection: and genetic engineering. The correct option is C.
What is natural selection?The strongest survive through natural selection, and the most favored traits endure through evolution. Natural selection is the result of selection pressure on a population's frequencies of a specific allele. Evolution is the process through which, over an extended period of time, new sets of naturally selected organisms emerged.
Future technological developments might result in the creation of turbines with a higher efficiency, which might produce more electricity than was initially anticipated. Wind speeds in a place may alter as the climate shifts through time, which could result in increased or decreased energy output.
Therefore, the correct option is C. natural selection: diseases; artificial selection: genetic engineering.
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What is the correct order of a food chain containing the following organisms: quail (bird), desert shrub, coyote, snake?
Answers
Answer:
desert shrub - quail - snake - coyote
Explanation:
the quail bird eats the desert shrub, the snake eats the quail, the coyote (a-pex predator in this chain) eats the snake.
How do Hadley cells affect savannas climate
Answers
what position will kamala harris hold on sunday 20,2021
Answers
Answer:
Vice President?
Explanation:
Answer:
vice president she the first black woman,indian and woman to be vice president her innaguration was yesterday
Explanation:
please help, anything will do! thank you! I have provided eveyrhtign and did the lab (procedures).
Answers
And the human and the cat are the most similar because they are almost identical to each other from the bottom up
You can conclude that the one that were alike were related in some type of way
Which environmental policy must consider the expensive startup costs associated with building machines that harvest energy from clean sources? reducing air pollution regulating deforestation introducing new farming methods protecting ocean reefs
Answers
Answer:
i think its A
Explanation:
Answer:
A. reducing air pollution
Explanation:
edge 2022
Help me I need help pls
It’s question 3
Answers
A gene is a unit of heredity which is transferred from a parent to offspring and is held to determine some characteristic of the offspring.
A fungus cell is a prokaryotic cell. True or false?
Answers
Alexis is using models of the cell membrane to compare the types of cellular transport. One
model shows a molecule entering through a protein pump. Which ope of cell transport is
being modeled?
A
diffusion because protein pumps are needed to move substances from a higher
concentration to a lower concentration
8
endocytosis, because protein pumps transport substances that are too large to
pass through the cell membrane
active transport, because protein pumps are needed to move substances against a
concentration difference
D
osmosis, because protein pumps allow water to cross the cell membrane
Answers
Answer:
C. active transport, because protein pumps are needed to move substances against a concentration difference
Explanation:
There are two major types of transport in living cells namely: passive transport and active transport. The passive transport moves molecules down a concentration gradient and hence, do not need energy (ATP) to occur. However, on the other hand, ACTIVE TRANSPORT moves substances against their concentration gradient, thus, require energy input.
Active transport makes use of PROTEIN PUMPS to achieve this process. Hence, in this case where Alexis is using models of the cell membrane to compare the types of cellular transport. The model that shows a molecule entering through a protein pump is modelling ACTIVE TRANSPORT.
Can someone help me with this question pls (8th grade science)
Answers
Answer:
C
Explanation:
The exerpt states that movements in the Earth's crust (unbalance) causes Earthquakes. When it's balanced, there is no plate movement.
Answer: c
Explanation: if there is no plate movement that means that there is a balanced force there is nothing that is disrupting it. but if there's an earthquake in that means that there are unbalanced forces in that they cause an earthquake. a force is balanced if the two individual forces are of equal magnitude and of the opposite direction. And an object is said to be acted upon by an unbalanced force when there is an individual force that is not being balanced by a force of equal magnitude and in the opposite direction.
EASY 10 POINTS
Why do plant cells need chloroplasts?
Answers
Answer:
Chloroplasts are organelles found in plant cells and eukaryotic algae that conduct photosynthesis. Chloroplasts absorb sunlight and use it in conjunction with water and carbon dioxide gas to produce food for the plant. In this respect they are similar to mitochondria, but are found only in plants and protista.
Explanation:
mark BRAINLIST!
thx
List three ways in which a sperm cell differs from other cells in the
human body
Answers
what does the process of breaking and reforming bonds allow cells to make?
Answers
The process of breaking bonds between molecules and the making or reforming of bonds encompasses chemical processes which allows the creation or formation of new molecules.
When bond is broken such that a certain element splits from a compound, new molecule is formed. Endothermic processes required energy to break bonds between atoms.
Bond making on the other hand are exothermic processes which involves merging of bond accompanied by the release of energy to form new molecules.
Therefore, bith Endothermic and exothermic processes allows cells to make new molecules.
Learn more :https://brainly.com/question/19493750
2/3 divided by 1/6
Answers
Answer:
4
Explanation:
PLSS HELP!!
1. cellular respiration produces
A. cellulose
B. oxygen
C. ATP
D. glucose
2. to produce starch, glucose molecules bond together through
A. photosynthesis
B. cellular respiration
C. dehydration synthesis
D. nucleotides
3. by which process does yeast produce the carbon dioxide responsible for bread rising?
A. photosynthesis
B. glycolysis
C. cellular respiration
D. dehydration synthesis
4. what is a component of amino acid not contained in starch?
A. amino acids contain carbon
B. amino acids contain oxygen
C. amino acids contains hydrogen
D. amino acids contain nitrogen
5. which two processes provide the glucose and nitrogen used to form amino acids in plants?
A. photosynthesis and nitrate absorption
B. cellular respiration and the citric acid cycle
C. photosynthesis and dehydration synthesis
D. glycolysis and nitrate absorption
Answers
Answer:
1. ATP
Explanation:
Cellular respiration may be defined as the chemical process of breakdown of food in the cell with the liberation of energy in the form of ATP.
Photosynthesis is a chemical process through which green plants most photosynthetic algae synthesize their own food in the form of glucose. While nitrate absorption is the process through which nitrogen in the soil is significantly absorbed by the root of plants in form of nitrates.
Fermentation is initiated with the process of glycolysis, but it does not involve the upcoming two stages of aerobic cellular respiration such as the Krebs cycle and oxidative phosphorylation.
Therefore, each of the above questions is well described above.
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Which of these is a characteristic of sexual reproduction?A)It takes place in all cells of the body.B)It forms exact copies of the parent cell.C)It results in offspring with genetic variation.D)It requires only one parent to form a daughter cell.
Answers
Answer/Explanation:
It results in offspring with genetic variation. 2 different mates must be used in sexual reproduction. This is because each person is different since cells are produced and combined differently in the original offsprings. If the two adults were exactly the same, the offspring would have the exact same cell traits. Likewise will be done for the offspring of the two adults. The genes may be similiar to the ones of the adults, but since combined it will not be an exact replica. In the long run sexual reproduction will result in an offspring with slightly different traits or genetic variation.
During a murder investigation, the medical examiner tests the contents of the
victim's stomach to try to identify their last meal and establish a connection to a
suspect. The contents tested using Lugol's iodine turned a dark purple color
which indicates the presence of starch. This test indicates which of these
macromolecules was present in the victim's last meal? *
A. Proteins
B. Carbohydrates
C. Lipids
D. Nucleic Acid
Answers
A. Amber and evolution
B. Cast and imprint
C. Theory, cast
D. Carbon dating and radioactive isotopes
Answers
Answer:
A. Amber and evolution
Most enzymes are proteins. Many cells make and use an enzyme called catalase to facilitate the decomposition of hydrogen peroxide (H2O2). The products of the decomposition are hydrogen (H2) and oxygen (O2). Stephanie is investigating the structure and function of catalase, and she is comparing catalase to other proteins. What can Stephanie predict will distinguish the structure of catalase from the structures of the other proteins she is studying? A. many regions made entirely of hydrogen and oxygen B. the chemical properties of the peptide bonds C. the types of amino acids it contains D. the sequence of amino acids it contains
Answers
Answer:
The correct answer is - B. the chemical properties of the peptide bonds.
Explanation:
The difference between the structures of catalase from other proteins depends on the chemical properties of the peptide bonds present in between the amino acids which decide the pH and temperature by their disruption. These bonds present between two alpha-amino acids when carboxyl of one amino acid interacts with the amino group of the other to form an amide-type covalent bond.
List what can possibly happen to a wave of light as it encounters objects. HURRY I NEED HELP!!!
Answers
Pretty sure its Reflection, Absorbtion, and Transmission.
Hey I just want to give back to the community for helping me up to expert. U dont have to answer the question but its hear for fun. Why do people shrink when the get older?
Answers
Answer:
Reynolds Institute on Aging, says that we can shrink for several different reasons. “Older adults can get shorter because the cartilage between their joints gets worn out and osteoporosis causes the spinal column to become shorter,” he says. “Adults can also lose lean muscle mass but gain fat
Explanation:
thx for points!!!!!!!!!!!!!!
Answer:
“Older adults can get shorter because the cartilage between their joints gets worn out and osteoporosis causes the spinal column to become shorter,” he says. “Adults can also lose lean muscle mass but gain fat. This is a condition called sarcopenia.”
A red blood cell would burst if placed in a(n) ___ solution with no cell wall.
A. Isotonic
B. Hypertonic
C. Hypotonic
Please help! 10 points
Answers
Answer:B
Explanation: