What is the phospholipid bilayer composed of?

Answers

Answer 1

Answer:

 Hydrophobic (water-hating interior)  Hydrophilic  (water-loving exterior)

Explanation:

The hydrophilic (polar) head group and hydrophobic tails (fatty acid chains) are depicted in the single phospholipid molecule


Related Questions

List the inputs and
outputs of photosynthesis.
What part(s) of the plant
are responsible for taking
in each of the inputs?

Answers

Answer:

Photosynthesis Inputs. 6H2O, 6CO2, (light) energy.

Photosynthesis Outputs. C6H12O6 (glucose), 6O2.

Light Reactions Inputs. Light (energy), ADP, Pi, NADP, H2O.

Light Reactions Outputs. O2, ATP, NADPH.

Calvin Cycle Inputs. CO2, ATP, NADPH.

Calvin Cycle Outputs. G3P.

Explanation:

Suppose the great, green galoofus lizard has 28 chromosomes in the nucleus of its unfertilized eggs. Predict how many chromosomes will be in the skin cells of a great, green galoofus lizard?

Answers

Answer: 56

Explanation:

Because an unfertilized egg has half the chromosomes of a fertilized egg. The fertilized egg then splits, and continues splitting until the lizard is born. Always remember, whenever a question  talking about an unfertilized egg, it has half the chromosomes of a fertilized egg. One more side note, it doesn’t matter what body part you talk about. A skin cell will have the same number, and identical chromosomes compared to a heart cell. (So long as it’s the same organism, if it isn’t, but part of the same species, it will have the same number of chromosomes, but it may have a unique set of chromosomes). If you want me to go into detail, I can, just respond to this answer.

Write the importance of medicinal plants in human life.​

Answers

Answer:

The importance of medicinal plants in human are as follow:

Medicinal plants are considered as a rich resource of ingredients.It is used in drug development either pharmacopeial and none pharmacopeial or synthetic drug.It has it's origin in ancient culture .Using medicinal plant doesn't have any side effects.

Answer:

hope it'shelps you have a great day keep smiling be happy stay safe ☺

up to about three thousand million years ago there was no oxygen in Earth's atmosphere today about one-fifth of the atmosphere is oxygen gas. suggest what caused this change???


pls help​

Answers

Answer:

Oxygen makes up about one-fifth the volume of Earth'­s atmosphere today, and is a central element of life as we know it.

But that wasn'­t always the case. Oxygen, although always present in compounds in Earth'­s interior, atmosphere, and oceans, did not begin to accumulate in the atmosphere as oxygen gas (O2) until well into the planet'­s history. What the atmosphere was like prior to oxygen'­s rise is a puzzle that Earth scientists have only begun to piece together.

Earth coalesced a little more than 4.5 billion years ago from bits of cosmic debris. Liquid oceans existed on the planet almost from the beginning, although in all likelihood they were repeatedly vaporized by the massive meteorites that regularly clobbered the planet during its first 700 million years of existence. Things had settled down by 3.8 billion years ago, when the first rocks that formed under water appear in the geologic record. (They exist in what is now southwest Greenland.)

If Earth had water, it must have had an atmosphere, and if it had an atmosphere, it must have had a climate. What was Earth'­s early atmosphere made of? Nitrogen (N2), certainly. Nitrogen makes up the bulk of today'­s atmosphere and likely has been around since the beginning. Water vapor (H2O), probably from volcanic emissions. Carbon dioxide (CO2), also emitted by volcanic eruptions, which were plentiful at that time. And methane (CH4), generated inside the Earth and possibly also by methane-producing microbes that thrived on and in the seafloor, as they do today.

Carbon dioxide, water vapor, and methane played an important role in Earth'­s subsequent development. Four billion years ago, the Sun was 30 percent dimmer, and therefore colder, than it is today. Under such conditions, Earth'­s water should have been frozen, yet clearly it wasn'­t. The water vapor, carbon dioxide, and methane acted as greenhouse gases, trapping heat and insulating the early Earth during a critical period in its development.

Of oxygen, meanwhile, the early atmosphere held barely a trace. What did exist likely formed when solar radiation split airborne molecules of water (H2O) into hydrogen (H2) and oxygen (O2). Hydrogen, a lightweight gas, would have risen above the atmosphere and slowly been lost to space. The heavier oxygen gas, left behind, would have quickly reacted with atmospheric gases such as methane or with minerals on Earth'­s surface and been drawn out of the atmosphere and back into the crust and mantle. Oxygen could only begin to accumulate in the atmosphere if it was being produced faster than it was being removed'—in other words, if something else was also producing it.

That something was life. Although the fossil evidence is sketchy, methane-producing microbes may have inhabited Earth as long ago as 3.8 billion years. By 2.7 billion years ago, a new kind of life had established itself: photosynthetic microbes called cyanobacteria, which were capable of using the Sun'­s energy to convert carbon dioxide and water into food with oxygen gas as a waste product. They lived in shallow seas, protected from full exposure to the Sun'­s harmful radiation. (To learn more about these organisms and the fossil evidence for them, watch the accompanying video "Early Fossil Life.")

how would you describe the motion of a transverse wave

Answers

Answer:

Transverse wave, motion in which all points on a wave oscillate along paths at right angles to the direction of the wave's advance. ... Surface ripples on water, seismic S (secondary) waves, and electromagnetic (e.g., radio and light) waves are examples of transverse waves.

Explanation:

hope it helps you.

7) Select 2 that apply.
Which nucleotides can pair together? Select all that apply.
please help

Answers

Answer:

Adenine(a) and Thymine(t), Cytosine(c) and Guanine(g)

Explanation:

Don’t know if you like sports or not but try this.
Adenine and Thymine: Alabama plays against Tennessee. Cytosine and Guanine: Clemson against Georgia.


The area labeled X is known as

A.
an atomic nucleus
B.
an active site
C.
a pH indicator
D.
a temperature regulator
ecule

Answers

I think it’s c I’m not very sure

An active site is the area at where the enzyme gets attached. The are labelled X is known as an active site.The correct answer is option B.

What is an atomic nucleus ?

An atomic nucleus is the central region of the atom at which the number of protons and neutrons are in abundance. The charge carried by the nucleus is positive in nature.

The picture shows the lock and key method where it is the relation between enzyme and substrate where the enzyme and substrate are almost same in shape where the lock is the substrate where the enzyme is of key shaped and they both fit in.

An active site is the region of the reactant or substrate where the enzyme will bind in and the reaction will form  a product. The binding of both the constituents depend on the binding energy and activation energy of the reaction.

Learn more about active site at :

https://brainly.com/question/26043462

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If a DNA strand has 32 % guanine, what percent thymine does it contain?
A) 36%
B)18%
C)64%
D)32%

Answers

Answer:

B

Explanation:

Guanine and Cytosine pair together. So, if 32 percent is guanine, then 32 percent should also be cytosine. This is a total of 64 percent. The remaining 36 percent is split between thymine and adenine. So, Thymine will have half of 36 percent which is 18 percent.

would the smell of perfume make it across the room faster if it were colder or hotter in the room ?

Answers

Answer:

hotter

Explanation:

Answer:

hotter

Explanation:

What is the difference between the euphotic zone and the bathyal zone of the ocean

Answers

Answer:

Euphotic zone is the layer closer to the surface that receives enough light for photosynthesis to occur. Beneath lies the disphotic zone, which is illuminated but so poorly that rates of respiration exceed those of photosynthesis.

Bathyal zone is the part of the pelagic zone that extends from a depth of 1000 to 4000 metres below the ocean surface. It lies between the mesopelagic above, and the abyssopelagic below.It is ala known as midnight zone.

Explanation:

What are some positive and negotiate things about the human reproductive system? (3 reasons for each please)

Answers

Answer:

Positive:

- offspring are all different, therefore more genetic variations that will increase survival.

- diversity

Negative:

- two partners are involved

- undesirable traits could be inherited by the offspring

I hope this helps I’m sorry I couldn’t think of three for each

A vacuole is the cell's _______________.
A: control center
B: storage place
C: energy processor

Answers

B storage place it’s B

Answer: B- storage place

Explanation:  

Yellowstone National Park has 124 wolves living in it.

Answers

Answer:

[tex]\huge\boxed{B}[/tex]

Explanation:

You basically have to divide 124 and 3472.

124 ÷ 3472 = 0.0357

0.0357 wolves/mi^2

Therefore your answer would be letter b.

Good luck!~

Where on Earth can you find collision zones?

Answers

Answer:

You can find collision zones on the edge of the Pacific Ocean offshore Washington, Canada, Alaska, Russa, Japan, and Indonisa.

Explanation:

What does evaporation change from ? Solid ———> liquid Liquid ———-> Solid What does condensation change from Liquid——-> solid Solid———> liquid

Answers

Answer:

Evaporation : Liquid --- Gas (Vapor) ; Condensation : Gas (Vapor) --- Liquid

Explanation:

Evaporation is the change of a liquid into gas or vapor, usually by increase in temperature. Eg : Water evaporation into vapors during water cycle, due to sun heat.

Condensation is the change of gas or vapor into liquid, usually by decrease in temperature. Eg : Vapors condensation into water droplets during water cycle, due to lower atmospheric temperature at higher height.

If one was able to view the individual particles in each of these substances, which particles would appear to be moving the FASTEST?
A) the water molecules in a sheet of ice
B) the neon plasma in a fluorescent 'Open' sign
C) the atoms in the liquid mercury of a thermometer
D) the carbon dioxide molecules in the fizz of a cola drink

Answers

Answer:

D and A are devently slow My guess would be B or C, since a neon sign usually turn on instantly (or technical within mil a seconds) Its probably the fastest

my guess is C

all of the following will take place during the first trimester except?
a. heartbeat can be detected
b. external sex organs show the sex of the baby
c. lenses of the eye appear
d. wake and sleep cycles become regular

Answers

Answer:

b

Explanation:

the correct answer is b

PLEASE HELP I WILL GIVE YOU MULTIPLE BRAINLYS ON DIFFRENT POSTS!!!!!!!

Answers

Explanation:

hy i can help you but what we have to do in that pdf

edicted answer - oh! i got that

Here I cant see the pic
I saw from the comments
Can u mark me as brainliest
Stay safe !

4) What is the most important chemical made during the light-independent reactions? It stores the energy that came from the sun.

Answers

The Calvin Cycle

Once in the mesophyll cells, CO2 diffuses into the stroma of the chloroplast, the site of light-independent reactions of photosynthesis.

please help, give explanation please!

Answers

Answer:

1. 0 chance (0%)

2. 2 chances (50%)

3. 4 chances (100%)

Explanation:

the way a punnet square works is that you basically multiply two genes. for example:

    b   b

B Bb Bb  

b bb bb  

then, if it's uppercase, it is dominant. if it's dominant, it will take over the recessive gene. if it was Bo, B being brown and dominant, and o being recessive and orange, then brown would take over. there are also cases with codominant but that's not in the question. feel free to ask me anything about this.

Which of the following would not be expected to contain tissues?
A. Harvester ant
B. African elephant
C. Unicellular bacteria
D. Oak tree

btw i picked C. Unicellular bacteriawhat

Answers

You got it correct, it’s C.

Unicellular bacteria does not contain tissue. Thus option C is correct.

What are the types of epithelial tissue in human ?

A tissue is a cluster of similar cells that perform specific function.

Epithelial tissue one most important type of tissue.

It can be up two types such as Simple epithelium and Stratified epithelium.

Simple  epithelium is a single layer of identical cells, observed at sites of secretion, absorption of substances.

It can be up three types Squamous epithelium, Cuboidal epithelium, Columnar epithelium.

Simple Squamous epithelium is single layer of flattened cells found Lungs-alveoli, Blood vessels-endothelium.

Simple cuboidal epithelium found in tubules of nephrons and glands which is involved  secretion, absorption, and excretion, etc.

Simple columnar epithelium found in the inner layers of the stomach, intestine, trachea,

Stratified epithelium which is multiple layers epithelial tissue can be up 4 types squamous, cuboidal, columnar, Psuedo-stratified columnar epithelium.  

Thus option C is correct.

Learn more about tissue, here:

https://brainly.com/question/13671691

#SPJ2

Calculate the momentum for the following football player: Todd: mass = 80 kg, velocity = 1.7 m/s

Answers

Answer:4.9

Explanation:80+1.7=4.9

what makes the red blood cell special, why is it special, how is it different than other cells, what is its primary function. (Minimum 5 sentences)

Answers

Red blood cells carry oxygen from our lungs to the rest of our bodies. It carries a special protein called haemoglobin, which helps carry oxygen from the lungs to the rest of the body, it has no nucleus and can easily change shape

I hope that helped :(

1. Many early farmers of the Western U.S. plains believed a theory called
"Rain Follows the Plow." What was the problem with this theory?
5 points
a. Farming actually makes it rain less, not more.
b. The climate at the time farming took place was not any different than normal.
c. The usually high precipitation during this period of early farming and settling was a
coincidence
d. This theory is actually true. Farming and settling an area makes it rain more
frequently

Answers

Answer:

d

Explanation:

because when you plough your field for crops to grow rain falls for the crops to yeild well

Mike works as a nurse in a hospital he accidentally gave a patient a hypotonic solution. such as distilled water instead of an isotonic solution suck as saline

what changes will occur in the patients cells ?
what can be done to fix this problem ?​

Answers

Answer:

The patient's cells will swell and then burst. The solute concentration outside the cell is lower than inside the cell, so water will move into the cells.

Mike would have to give the patient a hypertonic solution, which will cause water to move out of the cell and the cell to shrink followed by an isotonic solution, which should regulate the concentration inside and outside the cell.

Hope that helps.

The agricultural research facility during a research accidentally changed the DNA sequence of a wheat plant from GCCATGTT to GCGTACTT and this mutation resulted in a stronger plant variety. What kind of mutation did the plant undergo? A. inversion B. substitution C. insertion

Answers

Answer:

Substitution!

Explanation:

The researcher substituted GCCATGTT for GCGTACTT. The underlined section is what was changed. Hope this helps!

its biology, help please :) ​

Answers

Answer:

phosphate molecules

fats (I think)

two

Which statement best compares the amount of fossil fuels formed each year to the amount used each year?

The amount of fossil fuels formed is exactly the same as the amount used.
The amount of fossil fuels formed is approximately the same as the amount used.
The amount of fossil fuels formed is much less than the amount used.
The amount of fossil fuels formed is greater than the amount used.

Answers

Answer: C

Explanation:

Hope this helps

Answer:

c

Explanation:

give them brainliest but i just took the test

and it was right

HELP I really need an answer for this!! Does anyone know?

Enzyme X catalyzes the conversion of substrate A into product B. If you wanted to use enzyme X to catalyze a different reaction, the new substrate would have the best chance of working with enzyme X if it has the same

A. charge as substrate A

B atomic composition but different structure as substrate A.

C. molecular weight as substrate A.

Dthree-dimensional shape and charge distribution as A.​

Answers

Answer:

A

Explanation:

ill give brainliest to anyone who helps me with this
Describe the processes of transcription and translation in your own words
Terms to use in your answer: amino acid, anticodon, codon, gene, messenger RNA, nucleotide, ribosome, RNA, RNA polymerase, transcription, transfer RNA, translation.

Answers

Answer:

Explanation:

The genes in DNA encode protein molecules, which are the "workhorses" of the cell, carrying out all the functions necessary for life. For example, enzymes, including those that metabolize nutrients and synthesize new cellular constituents, as well as DNA polymerases and other enzymes that make copies of DNA during cell division, are all proteins.

In the simplest sense, expressing a gene means manufacturing its corresponding protein, and this multilayered process has two major steps. In the first step, the information in DNA is transferred to a messenger RNA (mRNA) molecule by way of a process called transcription. During transcription, the DNA of a gene serves as a template for complementary base-pairing, and an enzyme called RNA polymerase II catalyzes the formation of a pre-mRNA molecule, which is then processed to form mature mRNA (Figure 1). The resulting mRNA is a single-stranded copy of the gene, which next must be translated into a protein molecule.

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