Cell membranes are made up of a bilayer of phospholipids that are very selective about what substances can pass through.The table below shows the different types of molecules that can enter a cell. It compares the concentration on the outside to the inside of the cell, its relative size, and whether it is polar, nonpolar, or an ion. Determine how each molecule can pass into the cell. Is it by passive transport, active transport, or endocytosis? (3 points)​

Answers

Answer 1

Answer:

Answer: Oxygen = passive Carbon Dioxide = passive Fructose = Endosytosis glutamine = Active Sodium ion = Active Potassium ion = Active Protein molecule = Passive or Endocytosis

Explanation:

js trynna get points lol

Answer 2

The molecules can pass into the cell by passive transport, active transport, or endocytosis.

Molecule | Concentration Outside | Concentration Inside | Size | Polarity | Transport | Mechanism

Glucose High Low Small Polar Diffusion

Oxygen High Low Small Nonpolar Diffusion

Sodium High Low Small Ion Active transport

Chloride Low High Small Ion Active transport

Amino acids Low High Medium Polar Carrier-mediated transport

Large protein Low High Large Polar Endocytosis

Glucose and oxygen can pass into the cell by diffusion. Diffusion is the movement of molecules from an area of high concentration to an area of low concentration. Glucose and oxygen are both small molecules, and they are both polar. This means that they can dissolve in the phospholipid bilayer of the cell membrane.

Sodium and chloride can pass into the cell by active transport. Active transport is the movement of molecules from an area of low concentration to an area of high concentration. Sodium and chloride are both ions, which means that they are charged particles. This means that they cannot dissolve in the phospholipid bilayer of the cell membrane. Instead, they need to be transported across the membrane by special proteins called ion pumps.

Amino acids can pass into the cell by carrier-mediated transport. Carrier-mediated transport is a type of passive transport that uses carrier proteins to transport molecules across the cell membrane. Amino acids are polar molecules, but they are larger than glucose and oxygen. This means that they cannot simply diffuse across the cell membrane. Instead, they need to be transported across the membrane by carrier proteins.

Large protein can pass into the cell by endocytosis. Endocytosis is a process by which the cell engulfs large molecules or particles. The cell membrane forms a pocket around the molecule or particle, and then the pocket pinches off to form an endocytic vesicle. The endocytic vesicle then fuses with a lysosome, where the molecule or particle is broken down.

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Related Questions

Which of the following is surrounded by two phospholipid bilayers?
a) Ribosomes b) the vesicles
C. CYTOPLASM
D) THE NUCLEOPL

Answers

Answer:

D. THE NUCLEOPLASM.

Explanation:

I think there is a typo in your option but that's fine! I understand.

During fertilization, each haploid ____________ contains the entire genetic contribution from one of the two parents.

Answers

During fertilization each haploid gamete

Which of the following is an example of the phenotype?
Question 7 options:


The cow is brown


The wheat is planted in the spring


The community raises rice and millet


The sheep graze freely in the hills

Answers

Answer:

The cow is brown

Explanation:

if a man with type ab blood marries a woman with type o blood, what blood types would you expect in their children

Answers

Answer: the child could be  A or B  blood type

(ID Level 18
OC
I start with "e"end with "e".
have whole countries inside
me. What am I?

Answers

Answer:

Europe

Explanation:

what is the role of the beaver in its ecosystems?
a) it is a foundation species and the main source of food for the natural predators of its ecosystems.
b) it is a keystone species that modifies its natural environment by damming streams to form wetlands
c) it is a dominant species, as it has the greatest number of individuals among all the mammalian species of its ecosystem
d) it is an endangered species as it has the least number of individuals among all the mammalian species of its ecosystem

Answers

Answer:

B)

Explanation:

What is the cell called that results from fertilization
A zygote
B egg
C sperm
D diploid

PLZ HURRY

Answers

Answer:

A

Explanation:

The result of fertilization is a cell (zygote) capable of undergoing cell division to form a new individual. The fusion of two gametes initiates several reactions in the egg.

Haven't Answered a Question lately So I'll ask
What are the top three fastest animals in the world?

Answers

Answer:

cheetah golden eagle white throated needletail Swift

First, is the Peregrine falcon, then the Golden eagle, and finally, the white throated needle tail swift.
1. Peregrine Falcon
2. Golden Eagle
3. White Throated Needle-tail sSwift

help me pls ASAP it's needed​

Answers

Answer: C

Explanation: Fossil Fuels are the main cause of climate change

That would be your third option or C.
the burning of fossil fuels is a major cause of CO2 levels to rise in atmosphere

Summarize the relationship between DNA,
genes, and chromosome

Answers

DNA is in the chromosome… DNA displays the gene

There is an error in the above model.
(a) What is this a model of? (2pts)
(b) Explain how you would change the model to make it correct? (2pts)

Answers

ATP hydrolysis is the lysis of the molecule mediated by water. It releases a phosphate group and energy. It is a reversible reaction. (a) Reversible ATP hydrolysis. (b) added energy on the left and released energy on the right.

   

------------------------

ATP is a significant molecule involved in many of the cellular metabolic routes. These metabolic processes can either form it or break it.

ATP provides energy to many different functions in the organism.

ATP means adenosine tri-phosphate. It is composed of adenosine (an adenine plus a ribose), and three phosphate groups.

Note: you can also find adenosine Diphosphate (two phosphates) and adenosine monophosphate (one phosphate).

Oxygens from the phosphate groups only have a single bond to phosphate (there are no hydrogen bonds).

These single bonds, known as phophoanhydrid bonds, have a negative charge and tend to repel each other, making the molecule unstable.

So phosphate groups repel each other, and a considerable amount of energy is applied to keep them united. So phophoanhydrid bonds are high energetic bonds.

The forces that keep the phosphate groups together accumulate potential energy.  

If these bonds are broken, part of this potential energy would be released.

When talking about breaking the molecule, we are referring to ATP hydrolysis. And the released energy is used in different cellular processes that require energy.

ATP Hydrolysis is the molecule lysis mediated by a water molecule.

                      ATP  +  H₂O   ⇄   ADP  +  Pi  +  Energy

Pi is the released inorganic phosphate group.

This is a reversible reaction, meaning that the ADP can go back to ATP.

                 ADP  +  Pi  +  Energy   ⇄   ATP  +  H₂O

(a) What is this a model of?

This model represents the reversible ATP hydrolysis.

In the superior part of the image, we can see an ATP molecule composed of adenine, ribose, and three phosphate groups. The yellow star behind represents the accumulated energy.

When ATP hydrolysis, it loses a phosphate group and part of the energy that was keeping this group in the molecule.

An ADP is composed after hydrolysis. We can see this molecule in the inferior area of the image.

ADP molecule is composed of adenine, ribose, and two phosphate groups.

Because hydrolysis is a reversible process, by adding a new phosphate inorganic group and energy, we can get a new ATP.

(b) Explain how you would change the model to make it correct?

What is wrong with this model is that instead of showing released energy during the hydrolysis process, it shows energy added to the reaction.

In the same way, instead of showing added energy to the reversible reaction, it shows released energy.

Added energy and released energy must be changed.

Added energy should be on the leftReleased energy should be on the right

---------------------------------

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how are plant and animal cells similar in structure

Answers

Structurally, plant and animal cells are very similar because they are both eukaryotic cells. They both contain membrane-bound organelles such as the nucleus, mitochondria, endoplasmic reticulum, golgi apparatus, lysosomes, and peroxisomes. Both also contain similar membranes, cytosol, and cytoskeletal elements.

how do you think the endocrine system and the nervous system work together to control communication in the body?

Answers

Explanation:

Ans. They use the help of the brain and nerves

The liquid part of blood is called ?​

Answers

Answer:

Plasma

Explanation:

Explain how homologous structures are used as a source of evidence to infer evolutionary relationships between modern and fossil organisms

Answers

Answer:

Homologous structures provide evidence for common ancestry, while analogous structures show that similar selective pressures can produce similar adaptations.

Explanation:

Analogous structures demonstrate that identical selective pressures might result in similar adaptations, whereas homologous structures indicate evidence for shared ancestry.

What are analogous structures?

In contrast to homologous structures, analogous structures are characteristics of different species that have evolved in response to a similar environmental challenge and are similar in function but not necessarily in structure.

While comparable structures demonstrate that similar selective pressures can result in similar adaptations, homologous structures suggest that they have a common ancestor (beneficial features).

Therefore, homologous structures provide evidence for common ancestry, while analogous structures show that similar selective pressures can produce similar adaptations.

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Which of these describe biodiversity?

Answers

Answer:

variation in species living in an ecosystem.

As DNA replication continues and the replication bubble expands, the parental double helix is unwound and separated into its two component strands.

a. True
b. False

Answers

Answer:

As DNA replication continues and the replication bubble expands, the parental double helix is unwound and separated into its two component strands. This unwinding and separating of the DNA require three different types of proteins: helicase, topoisomerase, and single-strand binding proteins.

Explanation:

3 More Days Till Christmas

Label the following with
N (neutron), P (proton),
E (electron)
___Negative charge
___ Atomic number ___determination
___ Atomic mass determination
___ Involved in bonding
___ Positive charge
___ when gained or lost creates ions
___ Neutral charge
___ Found in nucleus

Answers

Answer:

E, P, N and P, E, P, E, N, N and P

Explanation:

I am pretty sure the answers would go like this (in the order you have here):

1. Electron (they have a negative charge)

2. P (The atomic number is determined by the number of protons)

3. N and P (The atomic mass is determined by how many Neutrons and Protons there are in the atom)

4. Electron (they are usually involved in bonding)

5. Proton (they have positive charge)

6. Electron (ions are created when an atom has gained or lost electrons)

7. Neutron (they are neutral)

8. Both Neutrons and Protons (they stick together inside the nucleus)

I am not entirely sure why the atomic number determination has 2 blanks since it is only determined by protons, but I hope this helps. I havent studied this for a while but those are the best answers I can provide and have checked them with my books so I hope they are correct. Good Luck!

Dragon

Complete the equation for photosynthesis.


+ water

+ oxygen
In light-dependent reactions, light energy is absorbed and converted into chemical energy in the form of
.

Answers

Answer:

ATP

I hope this helped...,..........

When carbohydrate intake is low, which of the following is most likely to result?

a. Your ur body will starve

b.your body will store more fat

c.your energy will use more energy

d.your body will break down other nutrients for energy

Answers

Answer:

d

Explanation:

e.g protein is used in the absence of carbohydrates

D is the correct answer because in absence of carbohydrates protein is used instead



Explain why some parts of a plant can act as both a source and a sink.

Answers

Answer:

Some organs are both a source and sink. Leaves are sinks when growing and sources when photosynthesizing. Rhizomes are sinks when growing but become sources in the spring when they provide energy for new growth.

hope this helps ☆☆☆

The leaves and rhizomes of the plant are found to act both as a source and a sink when growing and when they perform photosynthesis.

What are source and sink in plant?

Source organs are the organs which provide a net uptake of resources while sink organs are the organs which have a net drawdown of resources in the plant. Molecular mechanisms which are responsible for the regulation of the relationship between the sources and sinks. These molecular mechanisms include both the carbon and nitrogen-containing metabolites, plant hormones and genes.

Some organs in the plant are found to act both as a source and a sink. Leaves of the plant are sinks when growing and as source when photosynthesizing in the presence of sunlight during daytime. Rhizomes are the sinks when growing however they become sources in the spring season when they provide energy for the new growth.

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Fertility is the measure of the ability to become __________. What one word completes the sentence

Answers

Fertility is the measure of the ability to become a parent.

FERTILITY:

Fertility is a phenomenon that describes the ability to reproduce or produce offsprings.

Reproduction is one of the characteristics of living things and the ability to successfully execute this characteristics is termed fertility.

The opposite of fertility is sterility, which means the inability to produce offspring or reproduce.

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Which three terms could be used to identify the carbon (c) in this chemical equation

Answers

Answer:

element product atom

Explanation:

• What is chlorophyll ? ​

Answers

Explanation:

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A green pigment in leaves which helps to capture the sun's energy

CHLOROPHYLL -:

chlorophyll is the green coloured pigment and the most significant among photosynthetic pigments five types of role of error found in higher plants and elegant they are chlorophyll a, b ,c ,d and e are among these chl-a is the universal photosynthetic bacteria role of is also widely distributed in RBI approved and again but absent in some algae chlorophyll a and CHL blue green and yellow green in colour respectively Chlorophyll found and photosynthetic bacteria also they are Bacteria chlorophyll A and B 650 and 600 chlorophyll pigment are soluble in organic solvents

What types of information can scientists learn from fossils?

Answers

how long life has existed on earth, an idea of an organisms size and how it has changed or evolved, and how some species may have gone extinct

Answer:

Types of information scientists learn from fossils is what it was like back then before we existed, these fossils also tells us our history and we might learn from the history and prevent any disaster that killed that animal or plant from happening to us

Explanation:

Hope this helps!

DNA and RNA are ______ that serve as templates that form proteins

Answers

Answer:

In the first step, the information in DNA is

transferred to a messenger RNA (mRNA)

molecule by way of a process called

transcription.... The mRNA sequence is

thus used as a template to assemble-in

order-the chain of amino acids that form a

protein.

A type of RNA that is called as ribonucleic acid type called as transfer RNA that is used for the production of the amino acid at a time and the protein assembly takes place at the ribosomes.

What is the role of DNA and RNA for the sake of protein synthesis ?

       

DNA are responsible for the providing out the code for the cell's activities and the RNA are responsible for providing out the service to make them proteins.

Each group of 3 bases in the  mRNA constitutes a codon and each codon is specifying  a particular type  of  amino acid. The mRNA sequence therefore used as a template to make the  assembly in order of the chain of amino acids which form a protein.

It is found that in all biological cells , usually occurs in cytoplasm of cell though its production takes place in nucleus. Whereas DNA is  providing the code for cell's activities and RNA is responsible for converting that code into proteins which carry various cellular functions.

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100 POINTS PLEEEEEEEEEEEEEEEAAAAAAAAAAASSSSSSSEEE

Answers

Answer:

claim: muscles

Evidence: usable energy

Reasoning: your breathing increases

Explanation:

Answer:claim: musclesEvidence: usable energy Reasoning: your breathing increases

Explanation:

26.
Which of the following food chains
shows one way that energy moves
through an ocean ecosystem?
A fish plankton + whale → squid
B squid whale fish plankton
C plankton squid fish whale
D whale fish plankton → squid

Answers

Answer:

C

Explanation:

ans is C Wait a minute, I'll be right back.

What is XX and XY? And which are their differences?

Answers

Answer:

chromosomes

Explanation:

the diefference is that one is combination of female genes and the other a combination of female with male genes

in _________, enzymes cut DNA into fragments, which are separated by size to form a pattern of bands.

a. selective breeding
b. cloning
c. dna fingerprinting
d. protein synthesis

Answers

Restriction enzyme analysis
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