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nikitadnepr [17]
3 years ago
13

Which two of earth's systems help to regulate climate?

Biology
1 answer:
Kitty [74]3 years ago
6 0

The core

Hope this helps it’s been soo long

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How do the properties of water and the ability to modify the rates of chemical reactions enable living things to carry out funct
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A chemical reaction is a process that changes some chemical substances into others. It involves breaking and reforming chemical bonds. They follow the Law of Conservation of Matter.

Explanation:

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How does this help them maitain internal homeostasis in hot climates
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Why enzymes of bacteria are not destroyed while the enzymes of plant destroyed at 78 C
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i need more information to answer this

Explanation:

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Cells are open systems that exchange matter and energy with their surroundings. Which of the following best explains why plant c
MakcuM [25]

Answer:

The energy input required for making organic compounds equals the usable energy output of respiration.

Explanation:

A reaction is endergonic (energy-consuming) process if the change in free energy is positive.

A positive change in free energy implies that energy is required to enter into the system. Let us recall that free energy is a state function. Hence, change free energy =free energy of products - free energy of reactants.

If free energy of products > free energy of reactants then the reaction is an endergonic (energy-consuming) process..

But The energy input required for making organic compounds equals the usable energy output of respiration, hence making the process spontaneous.

4 0
3 years ago
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
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