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ludmilkaskok [199]
3 years ago
13

How does bioluminescence work?

Biology
1 answer:
enyata [817]3 years ago
4 0
Bioluminescence occurs through a chemical reaction that produces light energy within an organism's body. For a reaction to occur, a species must contain luciferin, a molecule that, when it reacts with oxygen, produces light. ... Many organisms also produce the catalyst luciferase, which helps to speed up the reaction

Hope i helped you :)
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Which of the following is an example of an allele? *<br><br> 1.H<br> 2. HH<br> 3. Hr<br> 4. RRR
VMariaS [17]

Examples of allele types are HH. That is option 2.

<h3>Gene Allele </h3>

An allele in genetic studies is an alternative gene form that is located at a particular point of the chromosome. It is usually represented with capital and small letter of the same alphabet.

There are two types of a allele which include:

  • Dominant allele: This is when the variation seen in a gene produces a noticeable phenotype. This is seen in the gene combination of HH.

  • Recessive allele: This type of allele does not produce any visible noticeable phenotype. This is seen in hh.

Therefore, examples of allele types are HH

Learn more about allele here:

brainly.com/question/25813022

6 0
2 years ago
Two different enzymes catalyze the same reaction and both exhibit the same Vmax. When Enzyme A was run with a 40 uM substrate, t
Vinil7 [7]

Answer:

a) k_m = 4.08 uM

  V_{max} = 20.07 uM/min

b) k_m = 8.16 uM

Explanation:

Given that:

For Enzyme A:

the substrate concentration [S] = 40 uM

the initial velocity rate v = 10 uM/min

when it was 4mM, v = 20 uM/min

i.e.

at 4mM = 4000 uM;

Using Michealis -menten equation;

when v = 10

V = \dfrac{V_{max}[S]}{k_m+[S]}

∴

10 = \dfrac{V_{max}\times 40}{k_m + 40}

10 (k_m + 40) = V_{max}40

40V_{max} -10k_m = 400 --- (1)

when v= 20

20= \dfrac{V_{max}\times 4000}{k_m + 4000}

20 (k_m + 4000) = V_{max}4000

4000V_{max} -20k_m = 8000 --- (2)

equating equation (1) and (2):

40V_{max} -10k_m = 400 --- (1)

4000V_{max} -20k_m = 8000 --- (2)

let multiply equation (1) by 100 and equation (2) by 1

4000V_{max} - 1000K_m = 4000

<u>4000V_{max} - 20 k_m = 8000     </u>

  0        -980k_m = 4000

k_m = 4000/-980

k_m = 4.08 uM

replacing the value of k_m into equation (1)

40{V_max } - 10(4.08) = 400

40{V_max } - 40.8 = 400

40{V_max } = 400 +  40.8

40{V_max } = 440.8

V_{max} = 440.8/40

V_{max} = 11.02 uM/min

b)

Since V_{max} of A ie equivalent to that of B; then:

V_{max} of B = 11.02 uM/min

Here;

[S] = 80  uM

V = 10 uM/min

∴

10 = \dfrac{11.02 \times 80}{k_m + 80 }

10(k_m +80) = 881.6

10k_m = 881.6  - 800

10k_m = 81.6

k_m = 81.6/10

k_m = 8.16 uM

8 0
2 years ago
How can energy from the sun be transferred to animals?
storchak [24]

Answer:

This is from google. hope it helps!

Explanation:

The energy from the sun is transferred from plants to animals when animals eat the plants. Animals also benefit from the sun's effect on their bodies, because sunlight on skin produces vitamin D, which is important in the formation of strong bones. Animals also get vitamin D by eating plants.

5 0
2 years ago
Read 2 more answers
Which component of the biosphere is an example of inorganic matter
valentinak56 [21]

<span>The biosphere refers to the most extensive layer of the earth's crust where air, water and soil interact with the help of energy. Inorganic matter is not made of carbon and is not manufactured by living beings, but by nature (in chemical reactions). They are small and simple molecules, such as salts, minerals such as gold, chlorides, and so on.</span>
8 0
3 years ago
Which example illustrates kin selection? choices a male lion that kills unrelated cubs upon taking over a pride a vampire bat th
djverab [1.8K]

Answer:

An older female squirrel that sounds an alarm call to warn her relatives of an approaching aerial predator

Explanation:

Kin selection is the evolutionary adaptive strategy that increases the survival rate of the organism by increasing the reproductive success of the genes and other close relative genes.

The organism increases the chance of survival of the close relatives and their offspring at their own cost.

The kin selection behavior is observed in many species including humans, bees, wasps, squirrels, and many others.

In the given question, the squirrel especially an old squirrel gives an alarming call when a predator comes in their range which allows enough time to run away from the predators and increase the reproductive rate of the population.

Thus, the selected option is correct.

5 0
2 years ago
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