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Ipatiy [6.2K]
3 years ago
7

In an experiment, a student mixed a substrate and an enzyme. Which statement BEST explains the reaction?

Biology
2 answers:
malfutka [58]3 years ago
8 0

Answer:

Option (D).

Explanation:

Enzymes are bio catalyst that increase the rate of the biochemical reactions of the living organism. Enzymes does not change the equilibrium of the reaction.

The enzymes converts the substrate into the product. The enzymes binds to the active site of the substrate and forms the enzymes substrate complex. This enzyme substrate complex formation is important for the formation of the particular product.

Thus, the correct answer is option (D).

Readme [11.4K]3 years ago
6 0
The answer is D. I call this the "PAC-man complex"
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Describe two specialized cells in the respiratory system that enable the lungs to function?
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Answer:

Respiratory epithelial cells line the respiratory tract from trachea to bronchi into bronchioles and alveolar sacs. ... The goblet cells produce and secrete mucous to trap pathogens and debris within the airway tract. Basal cells are progenitor cells that differentiate into cells types found within the epithelium.

5 0
3 years ago
A certain machine can output 50 Joules (J) of energy when 100 J of energy are input. If the amount of friction experienced by th
Dmitriy789 [7]

Explanation:

D) 75 J

Energy is neither related nor destroyed- it's simply converted to different forms. Forces are vectors with both mass and acceleration; they are interactions that have the ability to change an object's motion. As objects move, their potential energy (apprx 100 J) is converted to kinetic energy. However, friction a resistive force, which is formed from the conversion of an object's kinetic energy into heat energy, as two surfaces move along each other.

With the reduction of friction, the energy output should increase, as less energy is lost as heat. Thus, the output should be 75 J.

Learn more about energy flow at brainly.com/question/6966886

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4 0
3 years ago
Receptors on nerves work by opening ion channels (sensors) in the wall of the nerve.
kvv77 [185]

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Yes (True), Receptors on nerves work by opening ion channels (sensors) in the wall of the nerve.

3 0
3 years ago
What causes genetic variation in a population
Gre4nikov [31]

Answer:

A lot of factors cause genetic variation in a population. The root of all genetic variation is mutations, which occur randomly.

A lot of genetic variation in fact results during meiosis, the process by which gametes (sex/reproductive cells) are formed. The 3 main ways are crossing over, independent assortment of chromosomes, and random fertilization. Crossing over occurs during Prophase I of meiosis, in which genetic material is exchanged between nonsister chromatids of homologous chromosomes. Independent assortment refers to the following: When cells divide during meiosis, homologous chromosomes are randomly distributed during anaphase I, separating and segregating independently of each other.  Random fertilization is where any sperm can fertilize any egg cell. The many combinations of eggs and sperms mean variation.

Another source of genetic variation include gene flow. Gene flow is where populations have their members enter other populations (migration), influencing the gene pool of populations. This source is more controversial, however.

Random mating can also increase genetic variation.

8 0
3 years ago
Choose all the true statements about oxidative phosphorylation.
irga5000 [103]

Answer:

A. Oxidative phosphorylation occurs in the inner mitochondrial membrane.

B. The oxidation of NADH provides enough energy to produce three ATP molecules.

Explanation:

Oxidative phosphorylation is the third step of cellular respiration, in which NADH2 or FADH electron carriers are oxidized to produce ATP. Oxidative phosphorylation occurs in the inner mitochondrial membrane. It is composed of two processes viz: electron transport chain and chemiosmosis.

Either NADH2 or FADH is used as the starting electron carrier. When NADH is used, its oxidation produces enough energy to generate 3 molecules of ATP per molecule while FADH generates 2 ATP molecules.

3 0
4 years ago
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