Cells require a structure that regulates the transfer of material in and out of the cell, and this structure is the cell plasma membrane, as substances can go in or out of the cell such as oxygen, water, etc.
What is the purpose of the cell plasma membrane?The cell plasma membrane's purpose is to protect the cell from outside materials such as matrix proteins, pathogens, and so on, as well as to give the cell the proper shape and size, and at the same time it consists of many channels, pumps, etc. Through the channels, the substance can flow in and out of the cell plasma membrane, and the energy may or may not be needed for the movement.
Hence, cells require a structure that regulates the transfer of material in and out of the cell, and this structure is the cell plasma membrane, as substances can go in or out of the cell such as oxygen, water, etc.
Learn more about the cell plasma membrane here.
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your thoughts on doing the Examination of Conscience?
Please share your thoughts!
It would really help me
Answer:
Explanation: Examination of conscience is a review of one's past thoughts, words, actions, and omissions for the purpose of ascertaining their conformity with, or deviation from, the moral law.
Which cellular processes are directly controlled by the cell membrane? A. protein production, respiration , digestion of food molecules B. movement of materials, recognition or chemical messages, protection C. enzyme production, elimination of large molecules, duplication of DNA D. release of ATP molecules, regulation of cell production, food production
Answer:
The cell membrane controls the movement of substances in and out of cells and organelles. In this way, it is selectively permeable to ions and organic molecules.
Explanation: I researched this so I hope this helps
The cellular process directly controlled by the cell membranes includes ( B ) :
Movement of materials, recognition or chemical messages, protectionThe cell membrane performs several cellular functions like protection and giving shape to the cell as in humans, also the cell signaling, adhesion and conductivity of ions in and out of the cell are part of the several functions of the cell membrane.
The cell membrane also serves as a point of attachment for extra cellular structures such as glycocalyx.
Therefore we can conclude that the cellular process directly controlled by the cell membranes include : Movement of materials, recognition or chemical messages, protection
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The instructions, or 'code', in our DNA is dependent upon the order of the _____ in the DNA
-phosphates
-proteins
-bases
- sugars
Answer:
C. Bases
Explanation:
Deoxyribonucleic acid, commonly known as DNA, is the a type of nucleic acid that serves as the genetic material in living organisms. DNA holds information or instructions needed for the synthesis of useful products like proteins that is responsible for growth, reproduction, and general survival of organisms. Hence, it is referred to as the "BLUEPRINT OF LIFE".
However, in the structure the of the DNA molecule, it contains certain monomeric building blocks called NUCLEOTIDES. These nucleotide bases are of four types namely: Adenine, Thymine, Guanine and Cytosine. It is upon these order of nucleotide bases that instructions, or 'code', in our DNA is dependent upon.
1. Which of these is not a favorable outcome predicted as the
result of genetically-modified crops?
A. Some GM plant pollen might spread GM genes
to other nearby plants.
B. Some GM plants might be able to resist pests
without pesticides.
C. Some GM plants might be more nutritious
(perhaps higher vitamin levels) than the
unmodified alternatives.
D. Some GM plants might be able to withstand
extreme weather conditions such as flood or
drought
Answer: A. Some GM plant pollen might spread GM genes to other nearby plants
Explanation: I just finished the video, hope this helps
plz help. what does Archaeopteryx prove about modern birds?
Answer:
It appears that Archaeopteryx had the brain structures and inner-ear balance sensors that birds use to control their flight. Archaeopteryx also had a wing feather arrangement like that of modern birds and similarly asymmetrical flight feathers on its wings and tail.
Describe the responses of a red blood cell in isotonic, hypertonic and hypotonic
solutions.
Answer:
Isotonic: Isotonic solutions are solutions having equal osmotic pressures. Hypotonic: Hypotonic solutions are solutions having lower osmotic pressures. Hypertonic: Hypertonic solutions are solutions having comparatively higher osmotic pressures.
List 3 Genetic Disorders (Diseases) in which the body makes Antibodies to it's
own "self' cells and mistakes antigens on "normal cells for those of Pathogens.
HINT: Think about what the Greek term for "self defence might be
Answer:
Rheumatoid arthritis
Celiac disease
Graves' disease
Explanation:
These are all categorized as Autoimmune diseases.
Some fungi and insects benefit each other; the fungi protects the insects from predators and the insects spread spores for the fungi. This is an example of a _______ relationship.
Some fungi and insects benefit each other; the fungi protect the insects from predators and the insects spread spores for the fungi. This is an example of a mutualistic relationship.
What is a Mutualistic relationship?A mutualistic relationship may be defined as a +,+ type of interaction in which both species benefit from the existence of each other. Example includes lichens, mycorrhizae association, coral reefs, etc.
In the question, the Fungi protect the insects from predators and benefit the insects to get survivability, while in return insects spread spores for the fungi and assist them in their reproduction process.
Therefore, both insects and fungi undergo a mutualistic type of relationship through which both species benefit from the existence of each other.
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Cell Junctions help in moving up a level in the hierarchy of organization of living systems. When cell junctions from, the system goes from the cell level to the _________ level.
What are themes of the 1st chapter of the War of the Worlds by H. G. Wells?
Answer:
Social Darwinism and Evolution
Explanation:
This are the themes of the 1st chapter of the War of the Worlds by H. G. Wells.
based on the graph, describe what is happening between 4 and 6 seconds.
The object is moving away from the start at a constant speed.
The object is not moving.
The object is returning to the start at a constant speed.
The object is changing speed.
Answer:
The object is not moving.
Explanation:
Answer:
its not moving
Explanation:
Explain how diffusion restored homeostasis during the dialysis treatment.
Explain why countercurrent flow met the goals and why parallel flow did not meet the goals.
Answer:
Explanation:
By maintaining amount of ions in the blood.
Countercurrent flow met the goals due to difference in concentration gradient.
Explanation:
Diffusion restored homeostasis during the dialysis treatment because during dialysis, the concentration of ion in the blood is maintained that leads to homeostasis.
Countercurrent flow met the goals because it flows in opposite direction while on the other hand, parallel flow did not meet the goals because it flows in the same direction. For example. the blood flows in one direction and the dialysate flows in the opposite direction. The countercurrent flow of the blood and dialysate increases the concentration gradient between the blood and dialysate. The increased gradient helps to remove more potassium, phosphorus and urea from the blood. If we used parallel flow so less concentration gradient of solutes is present and hence, less potassium, phosphorus and urea are removed from the blood
A population of crabs living on a sandy beach exhibits three colors: dark brown, light
brown, and speckled. The genotypes for these colors are BB for dark brown, bb for light
brown, and Bb for speckled. If a dark brown crab were crossed with a light brown crab,
what would be the probable phenotypic ratio of their offspring?
Answer:
100% of the progeny will be speckled
Explanation:
Available data:
Three colors: dark brown, light brown, and speckled.The genotypes for these colors are BB for dark brown, bb for light brown, and Bb for speckled.Cross: dark brown crab with a light brown crab
Parentals) BB x bb
Gametes) B B b b
Punnett square)
B B
b Bb Bb
b Bb Bb
F1) Genotype:
4/4 = 100% of the progeny will be heterozygous for the trait, Bb
Phenotype:
4/4 = 100% of the progeny will be speckled
What is the significance of studying the history of life to the future of science?
Answer:
Studying the history of science allows you to have a glimpse into both the history of the world and into just how we discovered everything we know about the world
Explanation:
I have a cell membrane.
A.Prokaryotic cell
B.Eukaryotic cell
C.Both types of cells.
Answer:
both types of cells have a cell membrane
Answer: C. Both types of cells
WHOEVER ANSWER THIS PROBLEM WILL EARN BRAINLIEST!!
Which characteristics are common to most salamanders? Check all that apply.
They undergo internal fertilization.
They lose their tails as adults.
They have wet, moist skin.
They have long, strong legs.
They begin life with gills.
Answer:
c, d, and a
Explanation:
dhdhdjfnjajksnsjdjsjajak
Answer:
They undergo internal fertilization; they have wet, moist skin; they begin life with gills
Explanation:
If the offspring of a cross show a 9/16 to 3/16 to 3/16 to 1/16 ratio (9:3:3:1), the
оа
b
aaBb x aabb
aaBb x Aabb
AaBb xaaBB
AaBb x AaBb
C
d
Answer:
it should be,
AaBb × AaBb
Explanation:
where,
RY(round, yellow) and ry( wrinkled,green) which gives RrYy( round, yellow)...which is also called 1st filial generation ( F1)...when Mendel self hybridised the F1 plants he differentiate the plant in 9: 3: 3: 1...which is F2 generation.
CELLS
Question
Answer
1.A cell is "the smallest unit of life".
Explain what that means in your own
words.
2. What does Unicellular mean?
3. What does Multicellular mean?
4. Give 3 examples of different cell types
(look at the pictures)
Answer:
1.its microscopic and it is the building block to every organism
2. unicellular means 1 cell or type of cell
3. Multicellular means multiple cells or types of cells
4. prokaryotic, eukaryotic?
In watermelons, solid green rind color (G) is dominant to stripes (g). A farmer crosses two watermelon plants that are heterozygous for rind color. What is the phenotypic ratio? * i know thats its the 75% solid but what is the striped %
How many kg is a 145-pound woman? 1 pound=0.45 kg
Answer:
65.25kg
Explanation:
im pretty sure it would be 65.25 kg if I did the math right
I need help with this. I have no clue how to do it and it is due soon. Please help me!!!
Answer:
i dont know
Explanation:
Identify the key metabolic process for step I and the key metabolic process for step II, and briefly explain how each process promotes movement of carbon through the cycle. For each process, your explanation should focus on the role of energy in the movement of carbon.
The question is incomplete, however, the correct and complete question is attached as an image:
Answer:
The correct answer is -
Step 1 - photosynthesis, promotes the movement of the carbon cycle because the energy in is sunlight
step 2 - cell respiration, promotes the movement of the carbon cycle the energy out for cell respiration is heat.
Explanation:
Step I is the photosynthesis / Calvin cycle and step II is (cellular) respiration / citric acid cycle / Krebs cycle. Both processes have their particular carbon input and output and the role of energy is also specific to the process.
During Photosynthesis CO2 is the input of carbon in the carbon cycle that Uses solar or light energy come from sunlight or ATP molecules come from light reactions and carbon output is Organic molecules such as glucose or sugars.
During (Cellular) Respiration Organic molecules are the carbon input of the carbon cycle that is broken down uses chemical energy and leads to ATP production and CO2 is carbon output in the carbon cycle.
Have you ever considered air pollution when thinking about someplace you'd like to live, or live currently?
If the air pollution here in Killeen was as bad as in other cities, what would you do? Why do you think the people in those cities don't leave?
Answer:
I would come up with a plan to help decrease pollution and be like: "Ey if you want to live in (insert city) Then we can make this city like that."
Explanation:
Which structure is involved in the breakdown of red blood cells?
A) liver
B) nephron
C) sweat gland
D) alveolus
Which is the most accurate description of RNA
A. Single stranded nucleic acid with adenine, uracil, guanine and cytosine bases.
B. Double stranded nucleic acid with adenine, thymine, cytosine, and guanine bases
C. Double stranded nucleic acid with guanine, cytosine, adenine, and uracil bases
The population change equation is Population Change = (Natality - Mortality) + (Immigration - Emigration). Which equation would create
stable population? (1 point)
natality + immigration = mortality - emigration
O natality + immigration = mortality + emigration
O natality + mortality = immigration + emigration
O natality - immigration = mortality + emigration
Answer:
B. natality + immigration = mortality + emigration
Explanation:
Migration refers to the movement of a group of people from one geographical region (location) to another geographical destination in search of better living conditions, work or social amenities.
Migration selectivity can be defined as the likelihood or tendency that a subset (part) of a group of people are going to move (migrate) out of a particular geographical location or area.
Some of the factors that influence migration selectivity are income level, age, education, gender etc.
Population change equation states that the change in the size of a population over a specific period of time is equal to the sum of the number of births and the number of immigrants that joined.
Mathematically, the population change equation is given by the formula;
Population Change = (Natality - Mortality) + (Immigration - Emigration)
Therefore, the equation which would create a stable population is given by the formula;
Natality + immigration = mortality + emigration.
When two true-breeding pea plants that show contrasting traits are crossed in a case of Complete Dominance Inheritance, all of the offspring show,
a) a different trait
b) a blend of the two parental traits
c) the dominant form of the trait
d) the recessive form of the trait
If an organism converts energy in the environment into food, what is the ecological role
of the organism?
Answer:
I'm guessing that's a decomposer.
Explanation:
Decomposers like mushrooms use dead animals, plants, and nutrients in their environment to make their own food.
Measurement of overall change in position.
Answer:
Velocity (Rate of change of position)Velocity is a vector quantity that is defined as the rate of change of position of an object with respect to a frame of reference with respect to time. Velocity is equivalent to the speed of the object along with the direction of motion.Hope this is fine for youAnswer:Displacement
Explanation:Displacement is the change in position of an object. The SI unit for displacement is the meter. Displacement has direction as well as magnitude. Distance traveled is the total length of the path traveled between two positions.
If there are two different creatures, one with hair, one without hair would they still be in the same kingdom?
Answer:
it realy depends what these two animals are like if they are both dogs but on is hairless that yes they would be in the same kingdom but if one is a whale and the other is a spider than no they would not