How are the molecules in the cell membrane arranged? as a lipid bilayer as a protein bilayer as a carbohydrate bilayer as a DNA bilayer

Answers

Answer 1

Answer:

as a lipid bilayer

Explanation:

just took the test

Answer 2

Answer:

A. as a lipid bilayer


Related Questions

If a substance has a mass of 12.50 g and takes up 3.4 mL of space, what is the density?

Answers

Answer:

The answer is

3.68 g/mL

Explanation:

The density of a substance can be found by using the formula

[tex]density = \frac{mass}{volume} [/tex]

From the question

mass of substance = 12.50 g

volume = 3.4 mL

The density of the substance is

[tex]density = \frac{12.50}{3.4} \\ = 3.676470588...[/tex]

We have the final answer as

3.68 g/mL

Hope this helps you

Wood has a density of 0.531 g/cm3. What is the volume of 44 grams of wood?

Answers

Answer:

The answer is 82.86 cm³

Explanation:

The volume of a substance when given the density and mass can be found by using the formula

[tex]volume = \frac{mass}{density} \\ [/tex]

From the question

mass of wood = 44 g

density = 0.531 g/cm³

It's volume is

[tex]volume = \frac{44}{0.531} \\ = 82.86252354...[/tex]

We have the final answer as

82.86 cm³

Hope this helps you

what happens during covalent bonding? ​

Answers

Answer:

The atoms share some of their outer electrons so that each atom has a stable noble gas arrangement.

Explanation:

The liquid state of matter can be described as

Answers

Answer:

The liquid state of matter is an intermediate phase between solid and gas. ... Liquids will flow and fill the lowest portion of a container, taking on the shape of the container but not changing in volume. The limited amount of space between particles means that liquids have only very limited compressibility

Explanation:

A liquid is a nearly incompressible fluid with a nearly constant volume regardless of pressure that adapts to the shape of its container. It belongs to one of the four basic states of matter.

Volume retention and conformity to the shape of a liquid's container are two of its most noticeable physical characteristics. When a liquid substance is poured into a container, it conforms to the shape of the container and will stay inside the container so long as the liquid state persists.

The intermolecular forces of attraction in a liquid state of matter are stronger than those in a gaseous state but weaker than those in a solid state.

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Calculate the number of moles for 12.044*10^23 number of helium atoms

Answers

Answer:

Explanation:

number of moles=number of particle (atoms)/avogadro number (NA)

we know that avogadro number is equal to 6.23*10^23

given number of atoms=12.044*10^23

therefore

moles=12.044*10^23/6.23*10^23=1.9=2

Explain how critical thinking helps scientists analyze information for accuracy and bias.

Answers

Answer:

Explain how critical thinking helps scientists analyze information for accuracy and bias.

 

Explanation:

Critical thinking requires scientists to ask questions about information they come across and assess its validity. This facet of critical thinking helps them avoid bias that originates from personal opinion and helps them distinguish information and fact from common belief.

Chuck wants to know how many electrons in an atom are not paired up. Which model would be best for Chuck to write
out?
a set of quantum numbers for the last electron in the atom

a configuration with numbers letters and subscripts

a dot structure of the atom

an orbital notation of the atom

Answers

Answer:

D. an orbital notation of the atom

Explanation:

i took the test

difference between compound and element​

Answers

Answer:

An element is a material that consists of a single type of atom. Each atom type contains the same number of protons. Chemical bonds link elements together to form more complex molecules called compounds. A compound consists of two or more types of elements held together by covalent or ionic bonds.

Explanation:

I hope it helped you

You have 150 g of water (m). The specific heat of the water is 4.184 g/jC (c) . You heat the water and raise the temperature by 1 degree. How much heat did the water absorb?

Answers

Answer:

627.6J

Explanation:

q=mcΔT

where:

q = heat energy (J)

m = mass (g)

c = specific heat (g/j*C)

Δt = change in temperature (C/K)

q= (150)(4.184)(1) = 627.6

When dealing with Atoms, what does MAN mean?

Answers

Answer:

when dealing with atoms man means man-made because man means man-made

Environmental science is a *

A. narrowly defined set of physical, life, and social sciences.
B. subject that only deals with the environment.
C. collective of like-minded people that attempt to raise awareness and take action to protect our environment.
D. interdisciplinary subject used to gain knowledge about the environment.

Answers

i would say that the answer is d?

define radioactivity and write down properties of radioactive Ray's

Answers

Answer:

Explanation:

So basically is just explain what radioacitvity and then radidoactive

Radioactivity is the spontaneous release of energy from an unstable atom to get to a more stable state. Ionizing Radiation is the energy that comes out of a radioactive atom. Radioactive isotopes are radioactive atoms of the same element that have different numbers of neutrons.

Answer:

Radioactivity is the spontaneous release of energy from an unstable atom to get to a more stable state. Ionizing Radiation is the energy that comes out of a radioactive atom. Radioactive isotopes are radioactive atoms of the same element that have different numbers of neutrons.

❤❤❤❤❤❤

Explanation:

Hi ,do you like dino nuggets?​

Answers

hello! yes, very much.
10/10 would recommend.
do you?

The 3 particles of the atom are:

Answers

Answer:

proton,neutron and electron

the answers are proton, neutron, and electron . i know someone already said it but i’m saying to again so you know it’s correct :D

Scientists have changed the model of the atom as they
have gathered new evidence. One of the atomic
models is shown below.
What experimental evidence led to the development of
this atomic model from the one before it?
A few of the positive particles aimed at a gold foil
seemed to bounce back.
The colors of light emitted from heated atoms had
very specific energies.
Experiments with water vapor showed that elements
combine in specific proportions.
Cathode rays were bent in the same way whenever
a magnet was brought near them.

Answers

Answer:

C)Equations were used to identify regions around the nucleus where electrons would likely be.

Explanation:

edgenuity 2020

Answer:

Equations were used to identify regions around the nucleus where electrons would likely be.....(C).....

Explanation:

hope this helps. the person above me is correct, the comments were looking for a different question

Question 4 (4 points)
(01.06 LC)
Water is an example of a mixture because it is made up of hydrogen and oxygen atoms bonded together. (4 points)
O True
O False

Answers

Answer:

False

Explanation:

The mixture is defined as a chemical substance formed by the combination of two or more substance but do not form any bond together.

Water is not a mixture because the water molecule is consists of two hydrogen (H2) atoms and one oxygen (O) atom bonded together with hydrogen bonds.

Hence, the given statement is "false".

what happened to the color of the sand when it goes through filtration and is quantitative or qualitative

Answers

Answer:

Qualitative

Explanation:

I'm not sure if there was another part to the question, but if you are looking at the color of the sand, that is a qualitative observation.

Quantitative statements involve numbers. (Ex: The house has 4 bedrooms.) Qualitative statements describe characteristics. (Ex: The house is blue.)

List the two factors used to calculate force ? (20 pionts)

Answers

Answer:The strength of the gravitational force between two objects depends on two factors, mass and distance. the force of gravity the masses exert on each other.

Explanation: i hope it answers your question

Answer:

blah blah blah

Explanation:

Which of the following is an example of an intensive physical property?
a. boiling point
b. height
c. volume
d. none of the above is an example of intensive properties
e. all of the above are examples of intensive properties

Answers

I think It’s A and C

Answer:

boiling point is an intensive property because it stays the same no matter the amount of an element or molecule

Explanation:

A different student is given a 10.0g sample labeled CaBr2 that may contain an inert (nonreacting) impurity. Identify a quantity from the results of laboratory analysis that the student could use to determine whether the sample was pure.

Answers

Answer:

Explanation:

It is density.

I do hope I helped you! :)

You are calling the telephone company to discuss your bill. Your expected wait time on hold is
20,000,000,000,000,000,000 fs.

(a) Convert this time to seconds and decide if you would be willing to wait this long.
(b) What is this length of time in minutes?
(c) What is this length of time in years?

Answers

Answer:

(a) 20,000 seconds

(b) 333.33 repeating minutes

(c) 0.0006341958 years

1. A sample of oxygen (0.) gas has a mass of 32.65 g and a volume of 24.924 L. What is the density of the 0,gas?​

Answers

Answer:

The answer is

1.31 g/L

Explanation:

The density of a substance can be found by using the formula

[tex]density = \frac{mass}{volume} \\ [/tex]

From the question

mass of oxygen gas = 32.65 g

volume = 24.924 L

The density of the gas is

[tex]density = \frac{32.65}{24.924} \\ = 1.3099823463...[/tex]

We have the final answer as

1.31 g/L

Hope this helps you

How many sig figs are there?
4000.

Answers

The number of significant figures in 4000 is 1

Is 4H2O an organic molecule ?

Answers

Answer:

it is an organic molecule

Explanation:

it's a compound called chromium, phosphate tetrahydrate, where tetra stands for 4 , as there are four water molecules attached to the compound.

Cathy is reading a science article about exercise. She learns that exercise
causes a person to breathe faster. The next part of the article has the title
"Heart Rate." In that part of the article, Cathy is sure she'll read about how
exercise causes the heart to beat faster. What active reading strategy is
Cathy using?
A. Monitoring and applying fix-up strategies
O B. Summarizing
O C. Making predictions
D. Making mental images

Answers

I think it’s going to be a

А
B
с
578 g
343 9
722 g
which is more dense?

Answers

Answer:

can you rephrase the question it is hard to understand

Will a crayon dissolve in water?

Answers

Answer:

Yes

Explanation:Like wax crayons but they can dissolve in water.

Answer:

ye bit

Explanation:

Is copper penny react
reaction with Nitric
acid a
Chemical or physical
Change?

Answers

Answer:

The reaction that occurs is a redox reaction. The Copper metal (Cu 0)on the copper pennies is oxidized in concentrated nitric acid to produce Cu2+ ions. Copper is easily oxidized to Cu2+, which is blue in aqueous solutions (water) so you should see the solution turn blue as the copper penny reacts.

Have a nice day ;)(^-^)

Taking into account the definition of chemical and physical change, the reaction of the copper penny with nitric acid is a chemical change.

Physical change

Physical changes are those in which the substances involved are the same before and after the change. That is, a physical change is a transformation in which the nature of matter does not change.

Chemical change

Chemical changes are considered to be those in which the substances involved are transformed into totally different ones.

In this way, the initial substances do not exist after the phenomenon has occurred and instead, new substances are formed, different from the initial ones.

That is, a chemical change is a transformation in which the nature of matter varies.

This case

When a penny of copper reacts with nitric acid, a redox reaction occurs where the copper metal in the copper pennies is oxidized to produce Cu²⁺ ions, whereas because the nitric acid oxidizes the copper, the nitric acid itself is reduced to nitric oxide (NO). Nitric oxide then reacts with oxygen in the air to produce nitrogen dioxide (NO₂). This can be represented by:

Cu + 4 HNO₃ → Cu²⁺(ac) + 2 NO₃⁻  + 2 NO₂ + 2 H₂O

Finally,  the reaction of the copper penny with nitric acid is a chemical change because a redox reaction occurs.

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Where light is hitting an object

Answers

When lights hits an object, the light either get absorbed, reflected or refracted

The phrase "where light is hitting an object" refers to the specific points or areas on the surface of an object that are directly exposed to light.

These are the regions where photons from a light source directly interact with the object's surface.

When light hits an object, it can be absorbed, reflected, or transmitted depending on the object's properties. The areas where light is hitting will typically appear brighter or illuminated, while the areas in shadow or not directly exposed to light will appear darker.

The distribution of light hitting an object plays a crucial role in determining its visibility, color, and overall appearance.

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I need help with problems 11-13 please. I’m very confused on how to find Volume when there’s no specific shapes and numbers.

Answers

Answer:

To find volume you can either look at the displacement of the water or Length•Width•Height

Explanation:

11) 12

12) 340 mL

13) 196 m\

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