Answer: Phospholipids
Explanation:
Phospholipids are arranged in a bilayer. This makes up the basic fabric of the plasma membrane.
Cholesterol molecules are distributed preferentially between membrane phospholipids. This helps to keep cell membranes from stiffening by preventing phospholipids from being packed too closely around each other.
What is plasma membrane?The plasma membrane, also known as the cell membrane, is the membrane found in all cells that differentiates the cell's interior from its surroundings.
A cell wall is connected to the plasma membrane on the outside of bacterial and plant cells.
Membrane biogenesis is the process by which plasma membranes form. Proteins as well as lipids are created first in the rough endoplasmic reticulum and then in the smooth endoplasmic reticulum. These are then delivered to the Golgi complex for adjustment.
The basic material of the plasma membrane is composed of phospholipids arranged in a bilayer.
They are amphipathic, which means they have both hydrophilic and hydrophobic regions, making them ideal for this role.
Thus, phospholipids helps the membrane to keep its shape and fluid qualities.
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What is the function of the plasma membrane? a Sorts proteins and then packs them into vesicles b It is a flexible boundary outside of the cell wall c Protection for the plant cell d It allows nutrients to enter the animal cell and wastes to be removed
Answer:
The correct option is d
Explanation:
Plasma membrane (or cell membrane) is a semipermeable or selectively permeable barrier that regulates what goes in and out of the cell by keeping toxic substances out of the cell while allowing nutrients, ions and some metabolic products inside the cell.
This membrane surrounds all the content/organelle inside (cytoplasm and nucleoplasm) of the cell.
ok I have like this campaign thing for science so i have to try and get people to vote for the mitochondria so on a slide i have to include the structure and the function of the mitochondria and be sure to relate them it also says it is very important to make the connection with the voters about why the mitochondria is the most important so include why the mitochondria is crucial for survival of your organism so if anyone can help that would be amazing
Answer:
The mitochondria is the most important organelle because it is where energy is produced through cellular respiration. It serves as an energy source for eating, breathing, moving, and thinking: all basic units of life. If there were no mitochondria many essential functions of the cell could not happen.
Explanation:
23. Which macromolecule is responsible for the creation of proteins?
A) Monosaccharides
C) Nucleic acids
B) Carbohydrates
D) Lipids
Why are environmentalists concerned about the introduction of genetically engineered trees? a. Genetically engineered trees are not regulated. b. Genetically engineered trees could have unexpected interactions with organisms of natural ecosystems. c. Genetically engineered trees decrease the biodiversity of natural ecosystems. d. All of the above
Answer:
b. Genetically engineered trees could have unexpected interactions with organisms of natural ecosystems.
Explanation:
A genetically engineered tree has had it's dna undergo certain modifications through the use of genetic engineering techniques. Such trees are made to have faster growth rate, resistance to insects and diseases. Environmentalists are concerned about these trees and how they could affect the natural environment causing adverse effects to the natural organisms of the ecosystem.
Answer:
B
Explanation:
4. ______________ and _______________ are needed by our body in small quantities
Answer:
vitamins and minerals.
Order the following from smallest to largest, with 1 being the smallest and
5 being the largest. *
What effect does water clarity have on sea otters and how does that effect the food chain?
Answer:
It can decrease the sea otters which can lead trouble to the food chain since there are consumers who eat sea otters
Explanation:
hope this helps
help please biology work
Answer:
C. Student 2
Explanation:
The community is the sum of all of the different populations in an area. All of the biotic(living) components of an ecosystem.
The only answer with more than one organisms is student 2's observation.
Atmospheric Layer Describe what happens to the temperature as altitude increases. Be sure to note specific altitudes where abrupt changes occur and how each layer is heated. Troposphere Stratosphere Mesosphere Thermosphere Exosphere Ionosphere
Answer:
Kindly Check explanation section.
Explanation:
The atmosphere has zones and each zones has it characteristics with respect to atmospheric conditions such as temperature, pressure and humidity.
So, the question only asked us to compare or show the temperature describe what happens to the temperature as altitude increases in each region of the atmosphere.
(1). Troposphere: the region known as troposphere in the atmosphere has a lower Temperature. The troposphere is a region in which the earth gets its radiation and re-radiates its electromagnetic radiation to give heat which later cools down.
(2). Stratosphere: what occurs in the region known as the stratosphere in the atmosphere is that there will be absorption of UV by the O3 layer which will in turn INCREASES THE TEMPERATURE.
(c). The Mesosphere: in this region of the atmosphere the temperature DECREASES.
(d). Thermosphere: there is surely an INCREASE IN TEMPERATURE in this region because of solar radiation.
(e). Exosphere: there is an INCREASE IN TEMPERATURE in this region too and the temperature increament is caused by ionization.
(f). Ionosphere: in this region, we have an INCREASE IN TEMPERATURE too be side of the solar radiation.
According to the article, why is a faulty hypothesis still an acceptable outcome to scientists
Answer:a
Explanation:
Both lipids and carbohydrates are important in animal cells because both_____
A. form cell walls
B. provide insulation
C. store energy
D. contain nitrogen
Answer:
Explanation:
C the lipids makes your energy from running out soo soon
Carbohydrates and lipids are essential biomolecules for living. They both helps to store energy. Hence, option C is correct.
What is carbohydrate?Carbohydrates are macromolecules formed from the monomeric units sugars such as glucose, fructose, galactose etc. These monomer molecules polymerise to form carbohydrates such as starch, cellulose, glycogen etc.
Lipids are formed by fat and triglycerols and they they store energy in skin cells. Lipids are important biomolecules because they have significant role in the cell wall formation in plants and cell membrane formation in animals as well as aids for the transport of ions through cells.
Carbohydrates are the main source of energy in animals and plants. It is stored in the form of ATP formed by glycolysis. Hence, both lipids and carbohydrates stores energy.
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what percent of radiation from the sun is reflected once it enters the atmosphere?
Imagine that you are given 25 germinating pea seeds that have been placed in 5M hydrochloric acid for five minutes. You place these seeds after you rinse them off, in a respirometer at the end of the five minutes and collect data. Predict the rate of oxygen consumption for these seeds and explain your reasoning.
Answer:
In the respirometer, it will be present no significant values of oxygen from the respiration process. The acid can denature proteins in a non-functional shape.
Explanation:
The pH of the solution will be considerably low in order to the proteins to work normally. In this case, the polarization of sites in the protein will cause a completely denaturation.
A normal pH is essencial for the best working coefficient of enzymes an proteins in general as well as temperature.
Osmosis is the diffusion of what across a membrane?
A glucose
B. protein
C. Naci
D. water
Answer:
Water
Explanation:
hope it helps
Which tool would be best to examine growth bands in the
scale of a fish—a hand lens, compound light microscope, dissecting microscope, or electron microscope? Explain.
Answer:
The correct answer is - compound light microscope
Explanation:
Growth bands in the scale of the fishes are used to determine and found out the age of fish by counting the number of annuli on a scale and proportional growth can find out by the space between scales.
A compound light microscope is a microscope that is used to examine or see the specimen that can not be seen by the naked eye or the hand lens, it provides the range of 40x-1000x magnification power.
Which of the following properties of water accounts for all of the others?
A. Hydrogen bonding
B. High heat capacity
C. Cohesion
D. Adhesion
E. Density
Answer:
(C) cohesion.
Explanation:
cohesion . hydrogen bonds hold water molecules together
Which TWO cellular structures are directly involved in protein production in the cells of both grass and white-tailed deer?
А
Lysosomes
B
Ribosomes
с
Centrioles
D
Central vacuole
E
Rough endoplasmic reticulum
Answer:
The correct answer is - option B. ribosome and option E. rough endoplasmic reticulum
Explanation:
The rough endoplasmic reticulum and ribosome are directly involved in the protein synthesis as ribosome helps in the process of translation and rough endoplasmic reticulum helps in editing, modifying, and packaging of the protein formed.
These both are present in eukaryotic cells such as white-tail deer and plants like grasses, together as rER have many membrane-bound ribosomes.
Thus, the correct answer is - option B. ribosome and option E. rough endoplasmic reticulum
There are approximately 259 hectares per square mile. How many deer could a square mile of forest of mature American chestnut trees support for a year if they were the only organism consuming their nuts?
Answer:
25 deers
Explanation:
According to studies conducted by wildlife experts, a single deer needs roughly 25 acres of land in order to survive comfortably. Therefore we first need to find out how many acres are in a hectare, which based on a quick search online we see that 25 acres equal 10.11 hectares which is what a single deer needs to survive. Now we divide the total amount of hectares by the hectares a single deer needs in order to find out how many deers can survive on this total amount of land.
259 / 10.11 = 25.618
Finally, we can see that the 259 hectares can maintain roughly 25 deers.
Are most of human cells undifferentiated?
Answer:
Most cells are diploid; they have two copies of each chromosome. Such cells, called somatic cells, make up most of the human body, such as skin and muscle cells. Cells differentiate to specialize for different functions. ... The cells of the inner cell mass go on to form virtually all of the tissues of the human body.
Answer:
don't know how to do it but going to be back once I figure it out
Why can’t you drink salt water?
A: It’s isotonic to your cells
B: it’s hypertonic to your cells
C: it’s paratonic to your cells
D: it’s hypotonic to your cells
How do diatoms and algae obtain their food?
Answer:
Explanation:
I don't know how diatoms obtain their food, but I do know how algae obtains it. Algae is a plant, that green stuff you find growing on rocks in creeks and lake shores. Plants turn sunlight, water, and carbon dioxide into sugars, which it uses for food. Most plants also obtain nutrients from soil and water using their roots, but algae doesn't have roots so it only gets food through the process I explained above, photosynthesis. I hope this has been helpful.
Answer:
Diatoms
Explanation:
They obtain food by absorbing nutrients from ocean water. Unlike many other types of phytoplankton and marine organisms, diatoms don’t have body parts that allow them to swim. They obtain food by absorbing nutrients from ocean water, which is a very competitive process. Diatoms are relatively large and at a disadvantage for food absorption due to their bodies’ reduced surface areas.
Biotic factors are the living aspects of an ecosystem (e.g.
animals and plants), and the nonliving aspects of an
ecosystem (e.g. sunlight and water) are known as ___??
Answer:
Nonliving aspects of an ecosystem are known as (Abiotic)
Abiotic is the nonliving aspects or factors of an ecosystem which is needed by the organism for its survival.
Abiotic is the non-living part of an ecosystem on which all the biotic factors depend. If one of the abiotic factor is eliminated or prevented from entering the ecosystem then all living organisms are adversely affected because all these organisms depend on that abiotic factor. Examples of abiotic factors are water, sunlight, oxygen, soil and temperature which is present in almost in all ecosystems.
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A cell that has an uncontrolled cell growth and division is called
abnormal tissue growth.
and results in
Answer:
Should be cancer
Explanation:
Cancer is where there is an area on the body where an area of cell grows uncontrollably.
What might happen if cytokinesis did not occur during the cell cycle?
Answer:
If cytokinesis did not occur during mitosis the cytoplasm wouldn't be divided and there wouldn't be two identical daughter cells as a result. so the cell would remain to be at rest not being able to separate into two individual cells.
10
This model of the cell cycle includes two arrows that each represent a process in the cycle.
Arrow 2
G, phase
Arrow 1
s phase
G phase
What do the two arrows represent?
F Arrow 1 represents prophase, and Arrow 2 represents interphase.
Arrow 1 represents mitosis, and Arrow 2 represents meiosis.
H
Arrow 1 represents interphase, and Arrow 2 represents mitosis.
J Arrow 1 represents meiosis, and Arrow 2 represents prophase.
Answer:
Arrow 1 represents interphase and arrow 2 represents mitosis
Explanation:
The cell cycle is generally divided into two phases:
the interphase, andthe M or mitotic phaseThe interphase represents the period between the telophase of one cell division and the metaphase of another. This is the period the cell uses to prepare itself for active division. It takes up a large chunk of the cell cycle and it is further divided into:
the G1 phase which represents the period of cell growth and increase in volume,the S phase which represents the period during which DNA is synthesized, andthe G2 phase which represents the period during which protein is synthesized.The mitotic phase represents the period of active division. It is further divided into the prophase, the metaphase, the anaphase, and the telophase.
Hence, the first arrow (1) of the model represents the interphase while the second arrow (2) represents the mitotic phase.
Answer: arrow 1 represents interphase and arrow 2 represents mitosis.
Explanation: i took the test c:
Could an animal adapted to live in an ecosystem at the bottom of the Rocky Mountains survive in an ecosystem at the top of the Rocky Mountains? Explain your answer.
Answer:
No, the environment would be completely different. At the bottom of the mountains there would be certain things that at the top you would not find and vice versa. The oxygen levels would also be different. The most important point is that an animal doesn't adapt easily. For example we humans, we live on the ground if we decided to live on Mt. Everest the lifestyle would be so hard to adapt to because we aren't used to it, like oxygen levels, food sources, temperature, etc. Same thing with this animal.
Hoped this helped :)
A student puts drops of Lugol's iodine solution into the water in the beaker shown. The water turned red. After a short time, the starch solution inside the dialysis tubing turned black. Which function of the cell membrane was the student demonstrating?
Answer:
Cell membrane as a semi permeable membrane.
Explanation
A semi permeable membrane is the one that would only allow water,ions and certain molecules to pass through it by diffusion while restricting other large molecules from passing through.
Details in the attachment.
I'm Katie, can someone help me? will mark brainliest In a negative feedback loop, the initial signal is:
Question 15 options:
remains unchanged
canceled out
amplified to a climax
Answer:
B, or Canceled out.
Explanation:
In a negative feedback loop, the product of the loop inhibits whatever initiated the loop, preventing more product from being formed. This is in contrast to a positive feedback loop, where the product of the loop further stimulates whatever initiated the loop, resulting in even more product being formed. :)
Answer:
Explanation:
In a negative feedback loop, the product of the loop inhibits whatever initiated the loop, preventing more product from being formed.
This is in contrast to a positive feedback loop, where the product of the loop further stimulates whatever initiated the loop, resulting in even more product being formed.
Find the acceleration if the change in velocity is 5 m/s and the time is 10 seconds
Answer:
i think that
Explanation:
solution
given
velocity (v) = 5m/s
time(t) = 10 sec
acceleration (a) = ?
By using formula,
a = v÷t
a= 5÷10
a = 2m/sec
Answer:
0.5 m/s
Explanation:
acceleration (a) = speed (s) / time (t)
a = 5/10
Which are accurate descriptions of comparative anatomy? Select three options.
may or may not include studies of structures with the same function
only involves studies of structures that are on the outer surface of the body
compares the structures of organisms from different species
always supports the concept of a recent common ancestor
includes studies of homologous, vestigial, and analogous structures
Answer:
1, 3, and 5
Hope this helps :]
Answer:
1: may or may not include studies of structures with the same function
3: compares the structures of organisms from different species
5: includes studies of homologous, vestigial, and analogous structures
Explanation:
1, 3, 5,
