Which macromolecule forms a double layer as the primary structure of cell membranes? fats oils phospholipids steroids

Answers

Answer 1

Answer:

phospholipids os the awnser


Related Questions

Which action is the best way to turn an electromagnet off?

Answers

Answer: 1) The strength of the electromagnet increases   →   Place a magnetic core inside the coil of wire

2) The electromagnet turns off    →    Turn off the battery supply

3) The poles of the electromagnet reverse     →    Change the direction in which the current flows

Explanation:

when current passes through a coil it behaves a an electromagnet.

Magnetic field strength is given by

B = μ N I  

N is no of turns and

I is the current through coil

μ is permeability of the medium or core in the coil.

1). Magnetic core increase permeability μ so it will strengthen magnetic field:

B = μ N I

2). When the battery turns off current becomes zeroi.e I=0

So B = μ N * 0

⇒ B = 0

so electromagnet turns off

3). Direction of magnetic field can be determine by right hand rule, i.e curl the fingers in the direction of current, thumb will point in the direction of north pole.

so changing current direction will change direction of magnetic field.

If you see a lamp that doesn’t look like a lamp to you, but it expands your idea of what a lamp is, you are experiencing:
A) image formation
B) mental concepts
C) concept expansion
D) concept formation

Answers

If you see a lamp that doesn’t look like a lamp to you, but it expands your idea of what a lamp is, then you are experiencing the idea of concept formation (Option D).

What is the concept formation?

The concept formation is a cognitive process in which the info is perceived by the senses and then this data is held in the memory.

In conclusion, if you see a lamp that doesn’t look like a lamp to you, but it expands your idea of what a lamp is, then you are experiencing concept formation (Option D).

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Cells that are carrying out normal day to day fuctions are in which phase of the cell cycle?
Answer Choices
A .Cytokinesis
B. Mitosis
C. Interphase

Answers

Answer:

i think its B. Dont take my word for it tho..

Explanation:

sorry if its wrong :'(

Answer:

mitosis

Explanation:

A 75 kg patient needs a medication X in the amount of 0.2 mg/kg/day. The medication comes in a liquid solution of 50 mg for every 1000 ml. How many ml of this solution will this patient need in a day? If this solution is being infused at 60 ml/hr, how long with the transfusion take?

Answers

Answer:umm.....

Explanation:

Why are primary producers also referred to as autotrophs? plzzzz help!!!
a) They are able to change chemical energy into light energy.
b) They are able to transfer energy throughout an ecosystem.
c) They are able to release energy from other organisms in an ecosystem.
d) They are able to transform energy from an unusable form to a usable form.

Answers

Answer:An autotroph is an organism that can produce its own food using light, water, carbon dioxide, or other chemicals. Because autotrophs produce their own food, they are sometimes called producers. ... Most autotrophs use a process called photosynthesis to make their food.

Explanation:

Answer:

d) They are able to transform energy from an unusable form to a usable form.

Explanation:

Auto- means "self" and -troph means "feeding," so autotrophs are "self-feeders."

What is the main reason why the climate is changing?
(I NEED THIS ASAP)

Answers

Answer:

green house gasses

Explanation:

the increase of gasses in the atmosphere has caused the temp. to rise

Answer:

Explanation:

The main reason why the climate is changing because we use a lot of fossil fuel and pollution and cutting down trees and rainforests. Also, this adds enormous amounts of greenhouse gases to those naturally occurring in the atmosphere, increasing the greenhouse effect and global warming.

In order to maintain a high level of performance, what types of foods do you think an athlete should eat right before a race? Select one.

Answers

Answer:

According to me it's energy bars and fruits, but u can give ur own opinion.

The gene frequency for a particular trait in a population was determined to be 80% A (dominant allele) and 20% a (recessive allele). Fifty years later, the gene frequency was determined to be 60% A and 40% a. What does this change most likely indicate about the gene pool?

Answers

Answer:

Explanation:

Microevolution is a change in the frequency of gene variants, alleles, in a population, typically occurring over a relatively short time period.

Population genetics is the field of biology that studies allele frequencies in populations and how they change over time.

Allele frequency refers to how common an allele is in a population. It is determined by counting how many times the allele appears in the population then dividing by the total number of copies of the gene.

\text{Frequency of allele }AFrequency of allele Astart text, F, r, e, q, u, e, n, c, y, space, o, f, space, a, l, l, e, l, e, space, end text, A ==equals \dfrac{{\text{Number of copies of allele }A \:{\text {in population}}}}{\text{Total number of }{\text{copies of gene in population}}}  

Total number of copies of gene in population

Number of copies of allele Ain population

​  

start fraction, start text, N, u, m, b, e, r, space, o, f, space, c, o, p, i, e, s, space, o, f, space, a, l, l, e, l, e, space, end text, A, start text, i, n, space, p, o, p, u, l, a, t, i, o, n, end text, divided by, start text, T, o, t, a, l, space, n, u, m, b, e, r, space, o, f, space, end text, start text, c, o, p, i, e, s, space, o, f, space, g, e, n, e, space, i, n, space, p, o, p, u, l, a, t, i, o, n, end text, end fraction

The gene pool of a population consists of all the copies of all the genes in that population.

This change in the gene pool most likely indicates the existence of microevolution. It generally includes the implications of various evolutionary forces like migration, genetic drift, mutation, natural selection, etc.

What is Microevolution?

Microevolution may be characterized as a series or sequence of changes that may lead to alterations in the frequency of genes. Due to this, the overall gene pool may get influenced within a particular time.

This methodology and the complete process of alteration in the gene pool with respect to the evolutionary forces are studied under population genetics. It is the field of biology that significantly involves the detailed study of alleles and their frequencies among populations.

According to the context of this question, the gene frequency for a particular trait in a population was determined to be 80% A (dominant allele) and 20% a (recessive allele). Fifty years later, the gene frequency was determined to be 60% A and 40% a. This is due to the microevolution.

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Interview 10 different people
Ask:
–Which city they live in. Must be different cities.

–If the person recycles

–If they recycle – what? (paper, plastic, metal, etc.)

–How they recycle – home bin, recycling center, etc.

–If NOT – why? What would encourage recycling?

Answers

Answer:

ok

Explanation:tahy all were like why

I’m one person
I live in NYC
I recycle by leaving glass bottles, plastic bottles and cardboard in a different place.
I put recyclables in the recycling compartments.
Hope this helps

A plant's water supply is now deeper in the ground.
What process allows the roots to grow longer?

A. interphase


B. photosynthesis


C. mitosis


D. meiosis

Answers

The answer is c.mitosis

two____ cells are created through mitosis. 100 POINTS!!!
0 sperm

0 identical

0 different

Answers

Answer:

The answer is identical.

Explanation:

Mitosis is a nuclear division giving rise to a genetically identical cells.

Answer:

identical

Explanation:

mitosis forms daughter cells, the copy of identical chromosomes

WILL MARK BRAINLIEST WORTH 20 POINTS

Which of the following limit cell size? Select all of the answers that apply.
A. ratio of surface area to volume
B. rate of moving materials across the cell's membrane
C. efficiency of using the information in a cell's DNA
D. efficiency of DNA replication and cell division

Answers

Answer:

Okrtyuiop[poiuytfdfghjkl;lkjhgfcvbnm,

Explanation:

How are solids, liquids, and gases different?

Answers

Answer:

Gases, liquids and solids are all made up of atoms, molecules, and/or ions, but the behaviors of these particles differ in the three phases.

Explanation:

gas are well separated with no regular arrangement. liquid are close together with no regular arrangement. solid are tightly packed, usually in a regular pattern.

At which ocean-floor feature do plates move together?

Answers

Answer:

divergent plate boundaries

Explanation:

Seafloor spreading occurs at divergent plate boundaries. As tectonic plates slowly move away from each other, heat from the mantle's convection currents makes the crust more plastic and less dense.

Will give brainlest and a heart if correct

Answers

Answer:

A

Explanation:

i have done the test

The answer is A hoped this helped

Explain how a moderate
increase in (1) light and (2) carbon dioxide could
affect photosynthesis in a desert plant. Address
both conditions for full credit.

Answers

Answer:

1) Moderate increase in light increases the photosynthetic rate

2) Moderate increase in CO2 increases the photosynthetic rate

Explanation:

Photosynthesis is a metabolic process unique to the cells of autotrophic organisms such as green plants. It is the process whereby they synthesize their food in form of sugars (glucose) in the presence of sunlight energy.

The photosynthetic process, although comprises of several reactions and processes, is generally described as the reaction of carbon dioxide, water and light to give glucose and oxygen gas as products. The general equation is as follows:

6CO2 + 6H2O + light → C6H12O6 + 6O2

Since both light (needed to supply energy) and CO2 (carbon source) are reactants of the photosynthetic process, a MODERATE INCREASE in them will INCREASE THE RATE AT WHICH PHOTOSYNTHESIS OCCURS.

What's a quote in the poem "two kinds" that encouraging

Answers

"So maybe I never really gave myself a fair chance. I did pick up the basics pretty easily, and I might have become a good pianist at that young age. But I was so determined not to try, not to be anybody different that I learned to play only the most ear-splitting preludes, the most discordant hymns"

this is a quote you can use from the book “two kinds” by amy tan that could be considered “encouraging”!

hope this helps :)

Meteorologists refer to the water vapor in the atmosphere as

Answers

Answer:

^^ The answer is below ^^

Explanation:

Water vapor is water in the gaseous phase. Meteorologists have defined several different terms to express the amount of water vapor in air. ... Specific humidity is the ratio of the mass of water vapor in a sample to the total mass of the moist air, including both the dry air and the water vapor.

Meteorologists refer to the water vapour in the atmosphere as moisture or humidity.

What are water vapours?

The atmosphere is continually being circulated with water. Water evaporating from the surface of the Earth rises into the sky on heated updrafts. When the air is driven by the wind, it condenses into clouds before returning to Earth as rain or snow. This cycle is vital to how heat and energy are moved around our globe from one location to another and from the Earth's surface to the atmosphere.

The most significant greenhouse gas found in the atmosphere is also water vapour. The heat emitted from the surface of the Earth is absorbed by water vapour molecules in the lower atmosphere. In turn, the molecules of water vapour emit heat in all dimensions. The Earth's surface receives some of the heat back. So, in addition to sunshine, water vapour serves as a second source of warming for the Earth's surface.

Therefore, meteorologists refer to the water vapour in the atmosphere as moisture or humidity.

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Photosynthesis results in *
An oxygen-rich atmosphere
Glucose, a food for plants
Glucose, the source of energy for all living things on earth
All of the above
What will happen to the rate of photosynthesis, if the temperature is

Answers

The answer is “all the above” :)

Toby and his brother Jedidiah are eating burgers. All of a
sudden, Jedidiah begins to gasp for air, grabs his neck, and
starts turning blue in the face. What can Toby do to help
Jedidiah?

A.perform CPR
B. give him an inhaler
C. perform the heimlich maneuver
D.nothing, it will pass

Answers

Answer :
Perform Heimlich maneuver

When a chemical reaction does not occur, what happens to the atoms of the two substances?

Answers

In a chemical reaction, reactants contact each other, bonds between atoms in the reactants are broken, and atoms rearrange and form new bonds to make the products.

Is it normal for a period to not come on for 1 month im worrying ​

Answers

Answer: It depends. Your period might sometimes come some days later or earlier because of stress or another thing. It should be fine if it comes one or two days after the date it is supposed to come, if not, well, you might be pregnant or some health problem that has delayed it.

8)
Carbon dioxide is removed from the atmosphere by
A)
the burning of forests
B)
the burning of fossil fuels
C)
respiration
D)
photosynthesis

Answers

D) Photosynthesis

Explanation:
Plants use Carbon dioxide in the process that turns sunlight, carbon dioxide and water into glucose and oxygen
D) Photosynthesis.

The reason why it’s D is because photosynthesis removes carbon dioxide naturally — and trees are especially good at storing carbon removed from the atmosphere by photosynthesis.

Explain why it is important to be skeptical of statistical results reported in the media.

Answers

Answer:

Firstly, many statistics are taken from a small group of people used to represent the general population. Say a news channel reported that 81% of teenagers in America were planning on going to a four-year college. This statistic is most likely taken from a randomly selected group of teenagers, and calculated with a margin of error. Because after all, it's nearly impossible to survey every single teenager in America. This can lead to some statistics that are not really representative of the actual percentage of people. This only gets more likely the larger the general population being "surveyed" is. Another reason is that the media is not always truthful with statistics. Things can be altered and not many people will notice. Hope this helps!

Why do scientists organize living things into groups?

Answers

Explanation:

Biologists use classification to organize living things into groups so that organisms are easier to study. ... Speicies with similar evolutionary histories are classified more closely together.

Answer:

Biologists use classification to organize living things into groups so that organisms are easier to study. ... Speicies with similar evolutionary histories are classified more closely together.

Explanation:

Besides organic pollutants, dead zones are also affected by nitrogen compounds. Denitrifying bacteria in the anoxic dead zones can use nitrates and nitrites as electron acceptors, thereby generating nitrous oxide, a potent greenhouse gas. What is the term used for this process?

a. assimilatory nitrogen reduction
b. dissimilatory nitrogen reduction
c. nitrification
d. nitrogen fixation

Answers

Answer: The correct answer to the question bus option B

DISSIMILATORY NITROGEN REDUCTION .

Explanation: When we talk about Dissimilaritory nitrogen reduction we simply mean an alternate form of respiration which occurs in the anoxic grown bacteria example purple photosynthetic bacteria.

Dissimilaritory nitrogen reduction is actually a type of denitrification which entails the denitrifying bacteria using nitrates or nitrites as electron acceptor and then reduce them to nitrogen gas. A series of intermediates are formed in this process of which Nitrous oxide is one of them, Nitrous oxide is a green house gas.

However,the main difference we can see between assimilatory and dissimilatory nitrogen reduction is that in the assimilatory pathway of nitrate reduction, ammonia will be formed which is utilized for the biosynthesis as a source of nitrogen. While in dissimilatory pathway, ammonia formation do not take place.

which group contains only molecules that are each assembled from smaller organic compounds

Answers

Proteins, DNA, fats, starch

1. Given the original DNA nucleotide sequence, which of the following is a mutated sequence showing a point mutation?
Original: G C A T T A A C G A C A
a. G C T T A A C G A C A U
b. G C A A T A A C G A C A
c. C G T A A T T G C T G T
d. G C C A T T A A C G A C

Answers

Answer:

The correct answer is - b. Original: G C A T T A A C G A C A  

Explanation:

Point mutation is the mutation where change takes place in one of the nucleotides or single base by one of three ways that are insertion, deletion, or substitution of the nucleotide. In insertion, one extra single base is added to the original sequence, In the deletion one of the single base pair is deleted from the single sequence, and in substitution one base is switched with the complementary base.

In all the options, there are more than nucleotide is altered except option B where T is altered with A and cause mutation.

Original sequence: G C A T T A A C G A C A

mutated sequence: G C A A T A A C G A C A

Which part of the flower accepts the pollen

Answers

Answer:

the part which allows the pollen is the stigma

Help I'm confused!
This is the beginning sequence of the first exon in the mRNA sequence:

AUGAAGCUCUUUUGGUUGCUUUUCACCAUU

Give the DNA/genomic sequence it was transcribed from.

Answers

Answer:

TACTTCGAGAAAACCAACGAAAAGTGGTAA

Explanation:

Transcription is the process by which a strand of DNA is copied into mRNA.

Remember that in mRNA, U (Uracil) bonds with A (Adenine).

Hope that helps.

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