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3 years ago

Is a chemical that was widely used to prevent fires, but can cause lung disease -apex

Biology

1 answer:

cluponka [151]3 years ago

5 0

Answer:

<em>Propoxur</em>

Explanation:

Propoxur is a well-known carcinogen. Using the EPA's cancer potency calculations and the results from our study, its found that daily lifetime exposure to the levels of propoxur residue found on dogs wearing flea collars could significantly increase the risk of cancer.

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Hydrogen flows back through what enzyme turning a rotor and producing atp

olga2289 [7]

The name of the enzyme present on the mitochondrial membrane, that allows hydrogen ions to flow through to provide the energy to phosphorylate ADP to form ATP is ATP Synthase.

4 0

3 years ago

The y-shaped site at which a double-stranded molecule of dna is separated into two single strands for replication.

aleksandrvk [35]

The Y shaped structure with active region present is called replication fork

The separation of the 2 single strands of DNA creates a ‘Y’ form referred to as a replication ‘fork’. the 2 separated strands will act as templates for making the new strands of DNA.

LEADING STRAND

one of the strands is oriented in the 3’ to 5’ path (toward the replication fork), this is the main strand?. the other strand is oriented inside the 5’ to 3’ direction (away from the replication fork), that is the lagging strand?.

because of their extraordinary orientations, the 2 strands are replicated in a different way: A small piece of RNA called a primer (produced by means of an enzyme referred to as primase) comes along and binds to the end of the leading strand. The primer acts as the place to begin for DNA synthesis.

DNA polymerase? binds to the leading strand after which ‘walks’ alongside it, including new complementary? nucleotide? bases (A, C, G and T) to the strand of DNA within the 5’ to 3’ direction.

This form of replication is referred to as continuous

LAGGING STRAND

Several RNA primers are made by means of the primase enzyme and bind at numerous points alongside the lagging strand.

Chunks of DNA, known as Okazaki fragments, are then introduced to the lagging strand also in the five’ to a few’ path.

This sort of replication is known as discontinuous as the Okazaki fragments will want to be joined up later.

Once all the bases are matched up (A with T, C with G), an enzyme referred to as exonuclease strips away the primer(s). The gaps wherein the primer(s) were are then filled by but extra complementary nucleotides.

The brand new strand is proofread to make sure there are no errors inside the new DNA series.

eventually, an enzyme referred to as DNA ligase? seals up the sequence of DNA into two non-stop double strands.

The end result of DNA replication is two DNA molecules consisting of 1 new and one old chain of nucleotides. That is why DNA replication is described as semi-conservative, 1/2 of the chain is part of the unique DNA molecule, half is ultra-modern.

Following replication the brand new DNA routinely finishes up into a double helix.

To know more about DNA replication click here

brainly.com/question/21265857

#SPJ4

7 0

1 year ago

How can a diet that is 90% carbohydrates support the same amount of protein in the human body as a diet that is only 15% carbohy

jeyben [28]

Answer:

Due to increase or decrease in the concentration of carbohydrates have no effect on protein concentration.

Explanation:

A diet having 90% carbohydrates support the same amount of protein in the human body as a diet that is only 15% carbohydrates because with the increase or decrease of carbohydrates in the diet does not increase the amount of protein. Protein and carbohydrates are two different things, proteins broken down into amino acid that is utilize by the body for making muscles while carbohydrates are broken down into glucose that is used by the body for performing daily activities.

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2 years ago

A nerve impulse from one neuron affects the activity of a neighboring neuron at a point of interaction called the:

tatyana61 [14]

Answer:

A nerve impulse from one neuron affects the activity of a neighboring neuron at a point of interaction called the: SYNAPSE

Explanation:

A NEURON(or nerve cell) has 3 parts:

1. The dendrites(multiple)

2. The axon

3. The cell body

A SYNAPSE is an area where the dendrites of one neuron communicates with the axon of another neuron.

At the synapse, nerve impulses are transmitted from one neuron to the other. This is possible through substances called NEUROTRANSMITTERS. There is no direct contact between the axon of one neuron and dendrites of another neuron.

4 0

3 years ago

Many classroom protocols for extracting dna from cheek cells instruct students to swish a sports drink in their mouths as they s

Harman [31]

During extracting DNA from cheek, it is a classroom and standard protocols to students to used sports drink in their mouth as they scrape the inside cheek than water. The reason for this is the sports drink contains salt and concentration which is compatible with the cells inside the cheek. Additionally, another reason is sports drink prevent cells from damaging or breaking apart and releasing DNA before getting a sample.

7 0

3 years ago

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Is a chemical that was widely used to prevent fires, but can cause lung disease -apex​

Is a chemical that was widely used to prevent fires, but can cause lung disease -apex