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GREYUIT [131]
4 years ago
8

How can the rate of a reaction be increased

Biology
2 answers:
Oksanka [162]4 years ago
5 0

Answer:

having more surface area

andrew11 [14]4 years ago
3 0

Answer:

The correct answer is having more surface area

Explanation:

Reaction rate can be defined as the amount of substrate is converted into product per unit time .Reaction rate also called reaction velocity.

   The reaction rate can be increased by increasing the surface area so that many reactant molecules can participate in the reaction as a result the reaction rate is being increased.

  On the other hand decreasing the amount of reactant,diluting the solution and lowering the temperature decreases the reaction rate.

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Which would probably have the greatest effect on a protein's function—a change to the primary, secondary, or tertiary structure?
Alja [10]

Answer:

There are 20 different standard L-α-amino acids used by cells for protein construction. Amino acids, as their name indicates, contain both a basic amino group and an acidic carboxyl group. This difunctionality allows the individual amino acids to join in long chains by forming peptide bonds: amide bonds between the -NH2 of one amino acid and the -COOH of another. Sequences with fewer than 50 amino acids are generally referred to as peptides, while the terms, protein and polypeptide, are used for longer sequences. A protein can be made up of one or more polypeptide molecules. The end of the peptide or protein sequence with a free carboxyl group is called the carboxy-terminus or C-terminus. The terms, amino-terminus and N-terminus, describe the end of the sequence with a free α-amino group.

The amino acids differ in structure by the substituent on their side chains. These side chains confer different chemical, physical, and structural properties to the final peptide or protein. The structures of the 20 amino acids commonly found in proteins are shown in Figure 1. Each amino acid has both a one-letter and three-letter abbreviation. These abbreviations are commonly used to simplify the written sequence of a peptide or protein.

figure1-Protein-Structure

Depending on the side-chain substituent, an amino acid can be classified as being acidic, basic or neutral. Although 20 amino acids are required for synthesis of various proteins found in humans, we can synthesize only ten. The remaining 10 are called essential amino acids and must be obtained in the diet.

The amino acid sequence of a protein is encoded in DNA. Proteins are synthesized by a series of steps called transcription (the use of a DNA strand to make a complimentary messenger RNA strand – mRNA) and translation (the mRNA sequence is used as a template to guide the synthesis of the chain of amino acids which make up the protein). Often, post-translational modifications, such as glycosylation or phosphorylation, occur which are necessary for the biological function of the protein. While the amino acid sequence makes up the primary structure of the protein, the chemical/biological properties of the protein are very much dependent on the three-dimensional or tertiary structure.

5 0
3 years ago
Enzyme complexes that break down protein are called _____.
Kaylis [27]
Are called proteasomes
3 0
3 years ago
Describe the neural and hormonal mechanisms that work to maintain blood pressure after significant (hemorrhaging) blood loss ass
Bad White [126]

Autoregulatory neural and endocrine mechanisms activate after blood loss to compensate for the loss and restore homeostasis.

Neural mechanisms involve blood pressure and blood chemistry. Cardiac centers and vasomotor centers may increase the blood flow and cardiac output (sympathetic) or decrease the blood flow and cardiac output (parasympathetic). Peripheral vessels are also constricted and nor epinephrine decreases flow in the arteries and decreases the flow in the veins.

Endocrine control acts in the renal and adrenal organs, the brain and heart. RBCs, renin/angiotensiogen/aldosterone, catecholamines, antidiretic hormone, atrial natriuretic hormone regulate blood volume and blood pressure by keeping the fluids in the cardiovascular system. It also initiates vasoconstrictors or vasodilators.

8 0
4 years ago
The amount of protein generally consumed daily by strength athletes is:
Sveta_85 [38]

<span>Proteins are large bio-molecules that contains one or more long chains of amino acid remains. Its source is meat, poultry, seafood and such; the amount of protein that is recommended for the endurance of athletes on a relative basic is 1.2-1.4 grams per day.</span>

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4 0
4 years ago
Compare and contrast the two prokaryotic kingdoms. What is one major difference that is apparent?
Nataly_w [17]

Answer: B)

The chemical composition of the cell walls of each in the two kingdoms varies.

Explanation: Usatestprep

6 0
3 years ago
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