The main function of the digestive system is to break food down into molecules that can be absorbed by cells. How are the food molecules absorbed into the cells to start the cellular respiration process?

A.
Food molecules are broken down by oxidation and then released by cells.

B.
Food molecules are released into the cells by the respiration process.

C.
Food molecules are absorbed through the cell wall.

D.
Food molecules are absorbed through the cell membrane.
PLEASE HELP! FREE BRAINLIEST

Answers

Answer 1

The Answer is B.

Explanation:

At least thats what I learned in school


Related Questions

What contribution to energy do carbohydrates make?

Answers

Answer:

Carbohydrates are the nutrients most frequently used as an energy source (containing 4kcal per gram), as they are fast-acting and turn into energy as soon as they are ingested. This energy powers the brain and body. The energy that powers the brain and body is generated when carbohydrates are broken down.

Explanation:

hope its help

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can you please help me!? ​

Answers

Answer:

You need to compare the location of bands for X and X's child. X is the mother, so the child will have half of all its bands from its mother, and the other half must be from the father. Some bands that X and X's child have in common are at around 185bp and 130bp (it is difficult for me to determine the exact position). Then look at the bands which X and X's child do not have in common. Those bands must have come from the father. So now you compare the remaining bands to all the bands of Megabucks and see if they match up. You can see a band at around 60bp that the child has. The mother did not have this band, so it must have come from the father. Megabucks does not have this band, so he is not X's father.

Explanation:

I hope this has helped you a little. The main thing to know is that a child's bands come from their mother and father, so if half the bands match up to the mum, the other half have to match up to some of the father's bands. But a child will never have the same set of bands as one of their parents - it will be a mix of both parents' bands.

5. Observe: Increase the Sim. speed by two levels. Click Play, and wait for a while. What occurs as ume goes by?​

Answers

your question not correct

Where are the different products of photosynthesis made? Drag the answers to the correct part of the Venn Diagram.
ITEM BANK: Move to Bottom
ADP
ATP
Glucose
NADP
NADPH
Oxygen
Both
Light-Dependent
Reactions
Light-Independent
Reactions

Answers

Answer:

Light-Dependent reactions: Oxygen, ATP, NADPH

Light-Independent reactions: Glucose, ADP, NADP

Explanation:

What is the difference between ventilation, gas exchange and cell respiration?

Answers

The process of inhaling and exhaling, with oxygen entering the alveoli (large surface area). (Carbon dioxide for oxygen). Cell Respiration: The chemical process occurring in the mitochondria where energy is released as ATP.

can anyone help for question 6?

Answers

answer: CTA GGT

it's obvious.

hope it helps.

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think before answering

If Individual 3 has children with a woman that is heterozygous for the genetic disorder, what is the probability they will have an affected child?

Answers

Well let’s draw a punnet square. So first make your four boxes. Now, heterozygous means having two different alleles of a particular gene. We’re going to use the letter ‘A’, but you can use any letter. In your first box there will be the dominant alleles. This can be identified as ‘AA’. A dominant allele is capitalized (A). A recessive allele is lower case (a). So in the first box it will be AA. Move over to the box on the right it will be Aa. Move down one box (on the right side) that will be aa. Now still on the bottom box, move over one to the left. That will be Aa. Since hetero means different, the heterozygous alleles would be Aa which means you have 2/4 probability of the child being affected. So 1/2.

If Individual 3 has children with a woman who is heterozygous for the genetic disorder, then the chance of producing genetically disordered offspring is 25% if the male is heterozygous and 0% if the male is not.

What is the genetic disorder?

A recessive genetic disorder, such as cystic fibrosis, and an autosomal dominant disorder, such as Huntington's disease, are examples of genetic disorders caused by a gene that can express itself in either a dominant or recessive manner. For example, the disease is represented by the aa. If the male is heterozygous for diseases such as "Aa," then he will produce 25% "aa" type offspring when he crosses with the heterozygous female. When a man is purebred AA and crosses with a heterozygous female, then no offspring will be genetically infected.

Hence, if Individual 3 has children with a woman who is heterozygous for the genetic disorder, then the chance of producing genetically disordered offspring is 25% if the male is heterozygous and 0% if the male is not.

Learn more about the genetic disorder here.

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What organelle contain dna tightly packed into chromosomes?

Answers

Answer:

nucleus

The nucleus itself is filled with liquid (called nucleoplasm) and is similar in structure and function to cytoplasm. It is here within the nucleoplasm where chromosomes (tightly packed strands of DNA containing all our blueprints) are found.

the answer is the nucleus because the dna and chromosomes are within the nucleus

c) combines the isolated gene of one organism with the DNA of a different organism. (1 point)

Answers

Answer: Recombinant DNA is the correct answer

Answer:

Recombinant DNA

Explanation:

Intervals of geologic time are bound by important events, like mass extinctions or the appearance of animals with hard parts. The first single-celled organisms appeared about 3.5 billion years ago. Many sea animals first show up in the Cambrian period of the Paleozoic era. That was about 545 million years. It is sometimes referred to as the Cambrian explosion because it happened relatively quickly. It lasted just over 50 million years. The next period, , the Ordovician, ended with mass extinctions of 60% of all marine invertebrates. Dinosaurs wouldn't appear for over 200 million years, during the Jurassic period in the Mesozoic era. Based on the passage, in geology, 50 million years is A an era. B not considered a very long time. C too short for any significant events to occur. D about how long dinosaurs were on the planet.​

Answers

Based on the passage above, in geology, 50 million years is not considered a very long time (Option B).

What is geological time?

Geological time is an expression used to describe processes that occurred on a high time scale.

Geological processes such as the emergence of species (speciation) can take millions of years.

The processes on a geological time scale are difficult to commensurate from a human thinking perspective.

In conclusion, based on the passage above, in geology, 50 million years is not considered a very long time (Option B).

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The genetic code for one amino acid molecule consists of A) five sugar molecules B) two phosphates C) three nucleotides D) four hydrogen bonds

Answers

Answer:

c

Explanation:

The genetic code for one amino acid molecule consists of three nucleotides. Thus option C is correct.

What is genetic code?

Genetic code is defined as a sequence of instructions that directs the translation of DNA into 20 amino acids, which are the basic building blocks of proteins in living cells.

It can also be defined as the collection of instructions that live cells follow to convert information stored in genetic material into proteins.

Nucleotides are defined as a three-subunit chemical molecule consisting of a nitrogenous base, a five-carbon sugar, and a phosphate group.

It can also be defined as the fundamental building component of nucleic acids.

There are basically two types of nucleotides.

Purines -  They are defined as a heterocyclic aromatic organic molecule composed of two fused rings. Adenine, guanine and  hydro xanthine are purines.Pyrimidine - They are defined as a simple aromatic compounds with a six-membered ring of carbon and nitrogen atoms. Cytosine, thymine and uracil are pyrimidines.

Thus, the genetic code for one amino acid molecule consists of three nucleotides. Thus option C is correct.

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Explain the protective significance of chromosomes condensing into tight coils during mitosis.

Answers

Answer:

Chromosomes condense before mitosis to allow them the ability to move smoothly, without becoming entangled and breaking. (So, they are conveniently packaged for cell division, in which the chromosomes must move to both poles of the cell.)

Explanation:Otherwise it would be a mess as they get tightly packed

Scientists use the process of genetic engineering to

Answers

Answer:

Genetic engineering is used by scientists to enhance or modify the characteristics of an individual organism. ... For example, genetic engineering can be used to produce plants that have a higher nutritional value or can tolerate exposure to herbicides

Answer:

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How is dna like a ladder

Answers

All of the parts of the DNA combine to make rungs. Those rungs are attached together with other rings and the DNA is twisted in a dibble helix to get its shape.

Explanation:

The structure of DNA can be compared to a ladder. It has an alternating chemical phosphate and sugar backbone, making the 'sides' of the ladder. ... These bases make up the 'rungs' of the ladder, and are attached to the backbone where the deoxyribose (sugar) molecules are located.

Before mitosis begins, what happens during S-phase?

Answers

Answer:

the S phase of a cell cycle occurs during interphase, before mitosis or meiosis, and is responsible for the synthesis or replication of DNA. in this way, the genetic material of a cell is doubled before it enters mitosis or meiosis, allowing there to be enough DNA to be split into daughter cells.

in S phase, the cell synthesizes a complete copy of the DNA in its nucleus. it also duplicates a microtubule-organizing structure called the centrosome. the centrosomes help separate DNA during M phase.

Explanation:

ill give you 100 points and brainliest

Answers

Answer:

I know it is A stating a range of movement possible at each type of joint.

Explanation:

100% sure and please give brainliest

Answer:

my answer got deleted so I'm going to it again I think it's A.

Explanation:

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Define hydrophobic.

Answers

Answer:

Meaning " water fearing". Hydrophobic compounds do not dissolve easily in water, and are usually non-polar.26 Jul 2004

hydrophobic means water fearing :)

The rat snake is found in many different environments. They are found in woods, along the coast, in cities, and in mountains. They eat rats, birds, mice, and squirrels. Rat snakes also have varied appearances. They are gray, yellow, black, and mixes of these colors, depending on where they live. Which of the following explains the differences in colors of the rat snake?

A. The rat snakes' colors vary because they eat different foods in different environments that make their skin color change.

B. The rat snakes' colors vary as a result of artificial selection, which allows them to choose the best color suited for their environment.

C. The rat snakes' colors are adaptations caused by natural selection, which help them blend into their environment and hunt for food.

D. The rat snakes' colors vary because they have the ability to change their color like a chameleon in response to a changing environment

Answers

Answer:

c

Explanation:

Answer:

the answer is c

Explanation: because artificial selection would be like breading pure bred dogs, but in the wild it would be natural selection.

Fill in the sequence diagram below to summarize Mendel’s experimental process.

Answers

First box: Self-fertilization/self-pollination of F1 flowers

Second box: Determine F2 generation phenotypic ratios

Which type of mutation is shown here?

Original: A T A C A C
Mutant : T T A C A C

A.translocation
B.non-disjunction
C.frameshift
D.point

Answers

Answer:

d

Explanation:

that is an example of a point mutation. A point mutation is a mutation  that causes only one nucleotide to change and in the example adenine changes to thymine

hope this helps (:

The mutation shown here is point mutation.

What is mutation?"A changes/alteration in nitrogenous bases sequence of DNA that can results in changes in the genotype and phenotype of an organism is known as mutation."It occurs due to: deletion, insertion, translocation and inversion.During insertion, an extra nitrogenous bases are added to the DNA sequence.During deletion, a nitrogenous bases are removed from the DNA sequence.During inversion, the sequence of nitrogenous bases gets inverted in a DNA strand.In translocation, a sequence of one DNA strand breaks off and attaches to another DNA strand.What is point mutation?"A point mutation occurs in a genome when a single base pair is added, deleted or changed."

Here, the sequence of original strand is A T A C A C and the sequence of mutant one's is T T A C A C. The base A is changed into base T.

Hence, the correct option is: D. Point mutation.

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- Which of the following would lead to a cooling of our climate?
-An increase of carbon -dioxide in the atmosphere
-Melting polar ice caps
-Warming of the oceans
-An increase of plant life

Answers

Answer:

it would be an increase of plant life

Explanation:

the reason for this is that plants take up the carbon dioxide and give us fresh o2

organisms are structured and supported by....

Answers

Answer:

cells

Explanation:

Answer:

cells

Explanation:

Describe Griffith’s experiment

Answers

Answer:

Griffith's Experiment was an experiment done in 1928 by Frederick Griffith. It was one of the first experiments showing that bacteria can get DNA through a process called transformation. ... In this experiment, bacteria from the III-S strain were killed by heat, and their remains were added to II-R strain bacteria.

Explanation:

Which of these animals is not a reptile?
D
a legless animal with a flexible jaw
B
a cold blooded vertebrate with scales
с
a relative of the lizard that swallows food whole
D
an animal that breathes underwater and lives in the ocean

Answers

Answer: D: a keyless animal with a flexible jaw

Explanation:

Answer:

A. A legless animal with a flexible jaw

Explanation:

The first on isn't a reptile, the second is a reptile (almost are all reptiles like this). A relative of a lizard is a reptile while you swallow is a boa constrictor. D is a croc or a snake.

If you traveled East through time zone what would the time difference be

I’ll give brainliest

Answers

Answer:

Explanation: If you travel east across the time zone you will gain time.

A cow has alleles for both black and
white fur that are codominant. What
would be the resulting appearance
of the cow?
A. a solid coat of gray fur
B. fur with areas of both black and white
C. it is impossible to determine

Answers

Answer:B

Explanation:

Codominant is when neither allele is recessive so they are both expressed in the phenotype

A cow having the codominant alleles for both white and black fur will appear to have fur with areas of both black and white fur. This is an example of co-dominance where both alleles are expressed in the different parts of the animal. So option B is correct.

What is codominance?

In codominance, two different versions of a gene are expressed separately and they are expressed equally in different parts of the organism. As a result, the traits of both alleles are expressed simultaneously. The term co-dominant means that both alleles are dominant and one allele does not mask the expression of the other.

Co-dominance can easily be spotted in plants and animals. Codominance is observed in some traits that are less visible like blood type. The A and B alleles are codominant and they can be expressed simultaneously.

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why are echinoderms more advanced than arthropods and mollusks?

Answers

They have internal skeletons which cover their skin. The body of an echinoderm seems little more than a skeleton of tiny plates and water. They don't use large muscles working on large body parts like many other animals. Instead they move, feed and breathe with a unique water-vascular system ending in hundreds of water-filled tube feet.

Why do States like Arizona have less potholes than New York?

Answers

Answer:

Because New York has way more sewer system's. In 1849, following a series of deadly cholera outbreaks, the city started building sewers. New York laid 70 miles of sewers between 1850 and 1855. It then expanded the sewer network throughout the city as it grew.

Explanation:

What causes diffusion? *

Answers

Answer: Diffusion occurs due to the random movement of particles. It usually happens due to a concentration gradient, meaning that molecules move from an area of high concentration to an area of lower concentration.

Explanation:

Answer:

first option

help pls :’)

what are two ways people are trying to maintain biodiversity

Answers

Answer:

1.Support local farms. Regularly buying from small local farmers at stands or markets helps to keep dollars in the local economy and supports agricultural efforts to conserve biodiversity.

2.Habitat restoration.

Explanation:I look it up that what pop up

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