Which statement explains why oxygen molecules easily diffuse across a cell
membrane while DNA molecules do not?
A. Oxygen molecules are more useful to a cell than are DNA
molecules.
O B. DNA molecules contain carbon atoms, while oxygen molecules
have only oxygen atoms.
C. Oxygen molecules are very small, while DNA molecules are very
large.
D. DNA molecules have phosphate groups that the cell membrane
repels.

Answers

Answer 1

Answer:

C.

Oxygen molecules are very small, while DNA molecules are very large.


Related Questions

In a normal conception (fertilization of egg and sperm), due to the processes crossing over and independent assortment:

Answers

Answer:  Hello your question is missing below is the intended question

Which of the following supports genetic diversity?

A- Independent Assortment

B-independent assortment and crossing-over support genetic diversity

C-Independent assortment, crossing-over, and fertilization of an egg by sperm support genetic diversity

D-Fertilization of an egg by a sperm

E-Crossing-over

answer :

Independent assortment, crossing-over, and fertilization of an egg by sperm support genetic diversity ( C )

Explanation:

The processes that supports Genetic diversity are ; Fertilization of egg and sperm, Independent assortment and processes of crossing over

Genetic diversity is the simply the variations seen in genetic composition among a population or specie.

how would hemoglobin content differ in a person living in philadelphia compared to someone living in denver

Answers

Answer:

The correct answer is - the difference in altitudes.

Explanation:

The hemoglobin in the person of Denver who lives at a higher altitude than the person who lives in Philadelphia will be much higher. This is due to the fact that at higher elevation or altitude atmospheric pressure decreases that causes hemoglobin to stick to the RBCs and that results in less oxygen level in the body.

To compensate for this low level of oxygen levels hemoglobin content need to be higher in people living at a higher elevation.

What does alteration of generation mean?

Answers

Answer:

Alteration of generation, is the type of life cycle that occurs in those plants and algae in the Archaeplastida and the Heterokontophyta that have distinct haploid sexual and diploid asexual stages.

pls make me brainliest

is variation always caused by the surroundings?

Answers

Answer:

Some variation is the result of differences in the surroundings, or what an individual does. This is called environmental variation.

Question:

Is variation always caused by the surroundings?

Answer:

Some variation is the result of differences in the surroundings, or what an individual does. This is called environmental variation.

Hope it helps you

The type of electromagnetic waves with a longer wavelength than infrared waves are ____.

a) ultraviolet waves
b) gamma rays
c) microwaves
d) visible light waves

Answers

Answer:

c.microwaves

Explanation:

This are microwaves because electromagnetic waves with a longer wavelength

66. A 64-year-old woman, who has always been proud of her suntanned, healthy look, is referred to a dermatologist with a blue-violet, painless, 1.5-cm lump in the skin of her left shoulder. The lump is firm and cannot be moved, and has grown very rapidly over the past few weeks. The mass is removed surgically and the pathologist diagnoses it as a Merkel cell carcinoma. If the UV radiation to which her skin was exposed affected the Merkel cells, what other cell type sharing the same specific epidermal layer might also be affected

Answers

Answer:

Basal stem cells for keratinocytes

Explanation:

Keratinocytes are epidermal cells located in the outermost layer of the skin (i.e., the epidermis). Moreover, the cells located in the basal layer of the skin are known as basal keratinocytes or basal cells. These basal cells are proliferative cells that undergo differentiation in order to form suprabasal epidermal layers. Merkel cells are neuroendocrine cells that are located in the basal layer of the skin (scattered among basal keratinocytes), which are attached to surrounding keratinocytes by intercellular junctions called desmosomes.

what is a skeleton and give two characteristics of a mammal​

Answers

A skeleton is a structural frame that supports an animal body.

The skeletal system of mammals and other vertebrates is broadly divisible functionally into axial and appendicular portions. 

There are two major types of skeletons: solid and fluid. Solid skeletons can be internal, called an endoskeleton, or external, called an exoskeleton, and may be further classified as pliant (elastic/movable) or rigid (hard/non-movable).

Fluid skeletons are always internal.

The presence of hair or fur.

A four-chambered heart.

Answer: well I know the skeleton is the bone structure in some living organisms if there a vertebrate

what is cell membrane ?​

Answers

Explanation:

the thin outside layer that surrounds the cytoplasm of a cell and controls the movement of materials into and out of the cell. cell membrane.

hope it helps.stay safe healthy and happy....

list few points on the importance of sun in power supply.​

Answers

Answer:

The sun provides more than enough energy to meet the whole world's energy needs, and unlike fossil fuels, it won't run out anytime soon. As a renewable energy source, the only limitation of solar power is our ability to turn it into electricity in an efficient and cost-effective way.

Answer:

Nothing is more important to us on Earth than the Sun. Without the Sun's heat and light, the Earth would be a lifeless ball of ice-coated rock. The Sun warms our seas, stirs our atmosphere, generates our weather patterns, and gives energy to the growing green plants that provide the food and oxygen for life on Earth.

why is DNA a useful form of evidence for developing a phylogenetic tree?

a) DNA never changes
b) DNA is the newest thing in science
c) DNA is passed from generation to generation ​

Answers

Answer:

DNA is useful for a phylogenetic tree because DNA is passed from generation to generation.

the answer;

should be C

HAVE A NİCE DAY

Explanation:

greeetings from Turkey ツ

C , dna is passed generation to generation!

function of mound layering? ​

Answers

Heavy-stemmed shrubs and trees benefit from mound layering. Cover the main stem by clipping it down to the ground. The buds at the stem's tip will develop into a number of rooted branches. Inside the moss, roots will form, and you can cut the rooted tip from the plant.

Question in the picture

Answers

Answer:

bbbb

bbbbbbbbbbbbbbbbbbbbbb

Why does the thermosphere increase in temperature as altitude increases?

Answers

Answer:

The thermosphere is the outer layer of the Earth's atmosphere, extending from about 53 miles to more than 370 miles above the surface. The temperature increases rapidly in this layer due to the absorption of huge amounts of incoming high energy solar radiation by atoms of nitrogen and oxygen.

Explanation:

Which term is defined as elements that are found in the environment

Answers

Answer:

Natural Resources

Explanation:

The basic components of the environment are atmosphere or the air, lithosphere or the rocks and soil, hydrosphere or the water, and the living component of the environment or the biosphere.

In a cell, resembling a factory which organelle best describes the factory job at hand? Answer the following.

1. Job:
Conveyor Belt

Job Description:
Moves the products to the shipping department

2. Job: Assembly Line

Job Description:
Products are created from raw materials on the assembly line

3. Job: Packaging and shipping

Job description:
Packs nutrients and sends them off for distribution

Answers

Answer 3. Packaging and shipping

Drag the substances into the correct category
water
Reactants Products

oxygen
energy
carbon dioxide
glucose

Answers

Reactants: Carbon Dioxide, Water, Energy
Products: Oxygen, Glucose

Answer: 100% on edge

Reactants:: glucose and oxygen

Products:: carbon dioxide, energy, and water

Describe how pollution can cause acid rain, and how acid rain affects the ecosystems of surrounding areas?

Answers

Pollution specifically air pollution can cause acid. Gases such as sulphur (IV) oxide and Nitrogen (IV) oxide when they are released into the atmosphere and comes into contact with precipitation, that is rain water causes acid rain. Sulphurous acid and Nitric acid is formed thus the rain falls in acidic form.

Acid rain when it falls on the leaves of the flora (plants) causes removal of the green colouring matter (chlorophyll) thus making plants to be deficient of food. Food in plants is made my the process of photosynthesis, removal of chlorophyll in plants kills them due to lack of food.

Also when acid rain finds it's way into the water bodies through surface runoff, aquatic animals such as fishes die due to lack of favourable environment and oxygen deficiency in water. Acidity in the soil also kills important decomposers therefore soil aeration is altered.

acid rain can affect the surrounding areas by ruining its ecosystem

help pls should be easy?​

Answers

What you have selected should be right
The 1st one is correct

Select from the drop-down menu to correctly complete this statement.
Inside the chromosomes are molecules that contain all information an organism needs to grow and reproduce. This is its __________.

Answers

Answer:

DNA

Explanation:

DNA's are the molecules that present inside the chromosomes.They contain all the information an organism needs to grow and reproduceDNA stands for deoxyribo neuclic acid

When you touch an object that is very hot you quickly pull your hand back. What is the correct pathway of nerve impulses for this behavior?
A. Heat receptors in the hand, sensory neurons, brain, motor neurons, hand muscles.
B. Heat receptors in the hand, motor neurons, hand muscles, sensory neurons, brain.
C. Hand muscles, motor neurons, brain, sensory neurons, heat receptors in hand.
D. Brain, sensory neurons, heat receptors in hand, motor neurons, hand muscles.

Answers

A heat receptor>sensory neuron>brain>motor neuron>>hand muscles

Answer:

a

Explanation:

The DNA of a prokaryote is arranged in a single coiled chromosome located in a region called the ____________ . Some prokaryotes carry genes on extrachromosomal pieces of circular DNA called ____________ .

Answers

Answer:

1. Nucleoid

2. Plasmid

Explanation:

Prokaryotes are groups of organisms characterized by the lack of a membrane-bound nucleus in their cell. Due to this, the genetic material (DNA) of prokaryotes are found naked i.e. not housed. The DNA of a prokaryote is arranged in a single coiled chromosome located in a region of the cell called NUCLEOID.

However, some prokaryotes e.g. bacteria carry genes on extrachromosomal pieces of circular DNA called PLASMID. Plasmids carry certain genes like antibiotic resistance genes.

If the first child of two parents with polydactyly does not exhibit this trait, what is the probability that their next child will have polydactyly

Answers

Answer:

No

Explanation:

Just because you are deferant dose not mean that your baby wourld have to turn out that way.

You are viewing an organ of the respiratory system and note the following tissues: folded mucosal layer containing simple cuboidal epithelium and smooth muscle, shifting into simple squamous epithelia. Identify the organ.

Answers

Answer:

Respiratory bronchiole  

Explanation:

The respiratory bronchioles represent the narrowest airways within the lung, being continuations of terminal bronchioles that have approx. 0.5 mm in size. The epithelium of the respiratory bronchiole is composed of cuboidal ciliated cells and a small number of non-ciliated (secretory) Clara cells. The respiratory bronchioles lead into alveolar ducts composed of smooth muscle and connective tissue (i.e., elastin and collagen), connecting the respiratory bronchioles to the alveolar sacs.

_______
are responsible for the structures and
functions of organisms.
DONE

Answers

The right answer is cell

Large biomolecules and macromolecules known as proteins are made up of one or more extended chains of amino acid residues. Proteins are responsible for the structures and functions of organisms.

What is Protein?

Large, intricate molecules classified as proteins perform an array of essential roles in the human body. They are fundamental for the structure, operation, and control of the body's tissues and organs and perform out the majority of their work inside cells.

Many thousands of amino acids, which seem to be smaller components that make up proteins, are linked together in lengthy chains to form proteins. To form a protein, 20 different kinds of amino acids can be mixed. Each protein's precise function and characteristic 3-dimensional structure are established by its amino acid sequence.

Thus, Proteins are responsible for the structures and functions of organisms.

Learn more about Proteins, here:

https://brainly.com/question/29776206

#SPJ7

Cationic detergents are surface active agents, also known as ______, which damage bacteria by binding bacterial surface proteins and disrupting ______.

Answers

Surfactants; cell membrane

For a reaction, A H= 2 kJ. For which value of TA Sis the reaction spontaneous?

Answers

Answer:

option a is the answer I think so

Answer:

option a

Explanation:

For which value of TA Sis the reaction spontaneous?

A(n)____is the product of gametes from two different
sources.

Answers

Answer:

I guess the answer is meiosis

Explanation:

Maybe yes or no but am 98% sure so it's ur lucky day. haha

In the gragh the y - i tercept of line is

Answers

Answer:

In the gragh y-intercept is the point.

chapter 19 Complete evaluation of the placenta includes structural _____, _____, retroplacental appearance, and _______ of the cord

Answers

Answer:

Structural location, size, shape and consistency, retro placental appearance and umbilical cord.

Explanation:

Umbilical cord is covered by amniotic membrane. Complete evaluation of placenta includes observing its size, shape, location and consistency. The area between myometrium and placenta is retro placental.

Which of the following is NOT part of the circulatory system?
lungs
heart
arteries
blood​

Answers

I’m not 100% sure about this one but I believe that it is lungs, seeing that the rest is blood you can just like pick the most obvious one out
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