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3 years ago

What substance gives plant their green color ?

Biology

1 answer:

poizon [28]3 years ago

4 0

Chlorophyll because the plant doesn’t absorb the green wavelengths of white light

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How do enzymes lower the activation energy?

Mama L [17]

By manipulating the substrates of the reaction, the enzyme can lower the necessary energy needed to make the reaction occur.

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2 years ago

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A medical term that means painful or difficult digestion is

Effectus [21]

Difficult or painful digestion-dyspepsia

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3 years ago

At the very beginning of translation, the first tRNA molecule __________.

Ede4ka [16]

Binds to the mRNA’s start codon

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3 years ago

Photosynthesis and cellular respiration have a unique relationship in that the products of one process are the reactants of the

AfilCa [17]

Answer:

B) Oxygen and E) Carbon Dioxide

Explanation:

Cellular respiration has a general chemical equation as:

$C_6H_{12} O__6$ $+6O_2$ ⇒ $6CO_2$ $+6H_2O$

glucose + oxygen ⇒ carbon dioxide + water

Photosynthesis has a general chemical equation as:

$6CO_2$ $+6H_2O$ ⇒ $C_6H_{12} O_6$ $+ 6O_2$

carbon dioxide + water ⇒ glucose + oxygen

Reactants are on the left side of the equation while products are on the right. You can see that the products in cellular respiration are carbon dioxide and water, these also are the reactants in photosynthesis. So (B) Oxygen and (E) Carbon dioxide are the answers.

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3 years ago

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The genome of the bacterium Neisseria gonorrhoeae consists of one double-stranded DNA molecule that contains 2220 kilobase pairs

qwelly [4]

Answer:

The length of the DNA of the Neisseria gonorrhoeae is 2220 kbps. It is to be noted that 1 kbp = 1000 bases. After converting the kbps into base pairs we get:

2200 * 1000 = 2220000 base pairs

The entire length of the base pairs is,

2220000 * 0.34 nm = 754800 nm

After converting it into centimeters we get:

754800 * 10^-7 = 0.7548 cm

Therefore, the total length of the molecule of DNA is 0.7548 cm.

The 85 percent of the 2220000 base pairs = 2220000 * 85 / 100

= 188700000 / 100 = 1887000 base pairs

Each of the amino acid is encrypted by three base pairs (triplet codon)

Thus, the number of bases needed to generate a protein with 300 amino acids is 300 * 3 = 900 base pairs

The number of protein encoding genes in N. gonorrhoeae genome is :

= 1887000 / 900 = 2096.6 or 2097

Hence, the total number of protein encoding genes present in the genome of N. gonorrhoeae is 2097.

The left 15 percent genes can be considered as the non-coding genes. They exhibit the information essential to monitor the expression of the 85 percent genes.

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3 years ago