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3 years ago

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Which of the following is not true about enzymes? a. They are consumed by the reactions they catalyze. b. They are usually made

of amino acids. c. They loser the activation energy of chemical reactions. d. Each one is specific to the particular subtrate(s) to which it binds.

1 answer:

Naddika [18.5K]3 years ago

7 0

A. They are consumed by the reactions they catalyze

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In what respect do hominins differ from all other anthropoids?

SCORPION-xisa [38]

The key difference between hominins and all other anthropoids is that hominins have bipedal posture, which plainly put means that they walk on two feet.

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Plz Help. Asap.

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Number 1 is D

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Heterozygous alleles are found on ________ chromosomes

Ksju [112]

Answer is Homologous.

A diploid individual having two different alleles for a specific trait is called heterozygous. An allele is the alternative form of the same gene. The cells in diploid organisms contain sets of homologous chromosomes, which are paired chromosomes. Each chromosome of a homologous pair has the same genes on the same positions. Although homologous chromosomes have the same genes, they may have different alleles for those genes.

Example: The gene for seed color trait in a pea plant exists in pair. One gene or allele for yellow seed (R) and the other for green seed color (r). A heterozygous plant would contain alleles for seed color (Rr). Gene R is present one chromosome and its allele (r) is present on the other chromosome of the homologous pair.

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4 years ago

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O oxigênio é importante um gás na quebra de ligações entre os átomos que formam a glicose para a produção de energia. Por que a

Fofino [41]

Answer:

It transport oxygen from lungs to the cells.

Explanation:

The presence of iron in our body is very important for this process because iron is responsible for the transportation of oxygen. Hemoglobin is made up of iron that takes oxygen from the lungs to each and every cell. Iron is an essential element for the formation of blood in human body. About 70 percent of body's iron is found in the red blood cells of our blood called hemoglobin and in the muscle cells called myoglobin. So we can say that iron is very important for the release of energy in the process of respiration.

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3 years ago

Which of the following correctly uses the data to justify the claim that the phosphagen system is an immediate, short-term sourc

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This question is incomplete, here is the complete question:

Muscle contraction depends on ATP hydrolysis. During periods of intense exercise, muscle cells rely on the ATP supplied by three metabolic pathways: glycolysis, mitochondrial respiration, and the phosphagen system. Figure 1 shows the rates at which the three metabolic pathways produce ATP following the start of an intense period of exercise.

Which of the following correctly uses the data to justify the claim that the phosphagen system is an immediate, short-term source of ATP for muscle cells?

The right option that correctly uses data to justify the claim that the phosphagen system is an immediate, short term source of ATP for muscle cells is the figure that indicates that ATP PRODUCTION BY THE PHOSPHAGEM SYSTEM INCREASES AND DECREASES RAPIDLY FOLLOWING THE START OF THE EXERCISE PERIOD.

The phosphagem system are systems of energy storing compounds that are located in the muscles and in the nervous systems of living organisms. The biochemical compounds that made up the phosphagem system are ATP, ADP and creatine phosphates (CP). These three compounds undergo continuous changes in a pathway called ATP - CP pathway.

ATP and CP serve as intermediate reserves of energy for the body. The phosphagem system is especially important in living organisms because its serves as a ready source of energy for muscles and nerves, which regularly experience energy changes.

The phospagem system is very important when it comes to physical exercise, because it is the fastest mean by which the muscles get the energy (ATP) they need. In the beginning of exercise, there is always rapid fluctuations in the production of ATP as the phosphagem system produces ready energy for the exercising muscles. Energy from the phosphagem system can only be used for maximum of 10 seconds, thus, it is most important in exercises that requires instant burst of energy for a short period. The system works under anaerobic condition and last only for a few seconds.

<em>Learn more about PHOSPHAGEM SYSTEM at: brainly.com/question/1758577.</em>

#LearnwithBrainly.

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