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Darya [45]
3 years ago
13

Chloride ions are more concentrated in the extracellular fluid around a neuron than in the intracellular fluid inside a neuron.

If a neurotransmitter binds the neuron, causing chloride ion channels to open, chloride ions will ____
Biology
1 answer:
aleksandrvk [35]3 years ago
3 0

Answer:

rush into the neuron.

Explanation:

This is because of diffusion, which states that things will move from higher to lower concentration.

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Assuming that the average protein in E. coli consists of a chain of 380 amino acids, calculate the maximum number of proteins th
Afina-wow [57]

Answer:

4210.5 proteins

Explanation:

(a)The amount of nucleotide pairs in the DNA molecule calculated using

=molecular weight of DNA/molecular weight of a single pair

molecular weight of DNA

= 3.1 × 10^9g/mol

molecular weight of a single pair

= 0.66 ×10^3g/mol

= (3.1 × 10^9g/mol)/(0.66 × 10^3g/mol)

= 4.7 10^6pairs

Lets, Multiply the number of pairs with the length per pair

Take, length per pair = 0.34 nm/pair

= (4.7 × 10^6pairs)(0.34 nm/pair)

= 1.6 × 10^6nm

= 1.6 mm

= (approx 2mm or 0.002 mm).

Therefore,

the DNA is

(1.6 mm)/(0.002 mm)

= 800

The DNA is 800 times times longer than the cell.

This indivates Tat DNA must be tightly coiled to fit into the cell.

(b) the amount of DNA molecule nucleotide pairs has given

= 4.7 × 10^6 nucleotide pairs,

From solution (a), there must be one-third this number of triplet codons

= (4.7 × 10^6)/3

= 1.6 × 10^6codons

If an individual protein has an average of 380 amino acids, each needs a codon,

the number of proteins that can be coded by E. coli DNA

= (1.6 × 10^6codons) × (1 amino acid/codon)

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

(380 amino acids/protein)

= 4210.5 proteins

________________________

Here is the complete question

The genetic information contained in DNA consists of a linear sequence of coding units known as codons. Each codon consists of three adjacent DNA nucleotides that corresponto a single amino acid in a protien.

The E.coli DNA molecule contains 4.70 x 10^6 base pairs. Determine the number of codons that can be present.

Assuming that the average protein in E.coli consists of a chain of 400 amino acids, calculate the maximum number of protiens that can be coded by an E.coli DNA molecule

7 0
3 years ago
Where do all living things on earth exist
Hunter-Best [27]
On the planet earth. They exist in what we call the "world", which holds all seen life.
4 0
3 years ago
Jeremy is observing a cross-section of a corn stem under the microscope. He observes that there is no vascular cambium present i
BaLLatris [955]
This is because it is a monocot and monocots do not have a vascular cambium in their stems.
3 0
3 years ago
Read 2 more answers
Which of the following terms refer to the total number of different species, including humans, on Earth or in an area? (Choose a
lorasvet [3.4K]

Answer:

biodiversity

Explanation:

3 0
3 years ago
How does the number of generations per year influence the likelihood of seeing a response to natural selection once a new host p
AysviL [449]

Answer:

As the generations are increasing or gets much over time, we have a more likelihood of seeing a response to natural selections as the favourable alleles are going to be moved from one generation to the next while those that are not favourable would be eliminated over generations.

If the new host gives allowance for early reproduction and ease of access then the generations each year would rise.

5 0
3 years ago
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