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Vadim26 [7]
1 year ago
14

how do ionizing radiation, ultraviolet radiation, and visible light harm microorganisms? how do microorganisms protect themselve

s against damage from uv and visible light?
Biology
2 answers:
7nadin3 [17]1 year ago
7 0

Microorganism protect themselves against harmful UV light and visible light by using Iron minerals around themselves.

The iron minerals have unique properties in that they block damaging UV radiation while yet allowing organisms to utilise the portion of sunlight required for photosynthesis. UV rays kill cells by damaging their DNA. Two molecules of thymine, one of the bases that makes up DNA, react when exposed to light. The thymine dimer that results is extremely stable. The cell cannot perform its usual tasks if cellular processes are interfered as a result of an inadequate repair or unrepaired damage of thymine dimer.

To learn more about Thymine dimer click here:

brainly.com/question/12634767

#SPJ4

FrozenT [24]1 year ago
4 0

Microorganisms use the iron minerals in their surroundings to shield them from damaging UV and visible light.

In the presence of sunshine, some bacteria that require light may consume dissolved iron and perform photosynthesis. However, they did not emit oxygen throughout the process, unlike modern green plants. Rust and other iron minerals are waste products of the process. Because the iron minerals absorb the damaging UV radiation, organisms may still utilize the portion of sunlight required for photosynthesis. Compared to today's seas, the quantity of iron needed to create the minerals was far higher.

To learn more about photosynthesis click here:

brainly.com/question/19160081

#Abcd

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It does not seem particularly surprising to us that we might find gill pouches, tails, or other such structures in humans. But w
Pavel [41]

Answer:

In the course of evolution mammals are the animals which are evolved recently as compared to other groups such as fish, amphibians, or reptiles.

In addition, fur or hairs on body, mammary glands, middle ear bone, warm-blood, et cetera are the characteristics of mammals.

These characteristics were evolved during the course of evolution; they were not present in ancestral organisms.

However, tail, gill pouches, et cetera are characteristics of our ancestral groups. Thus, characters can be sometimes observed in mammals.

But mammals characteristics can not be observed in organisms which were evolved before mammals such as fishes, amphibians, reptiles, et cetera.

5 0
3 years ago
If a pea plant has a recessive allele for green peas it will produce
PilotLPTM [1.2K]

Answer:

Green peas if it does not have a dominant allele for yellow peas.

Explanation:

In pea plants, yellow is the dominant allele color of peas and green is the recessive allele color of the pea. So the genotype that makes yellow color pea is YY or Yy and the genotype that is responsible for producing green color pea is only YY.

This shows that homozygous dominant or heterozygous dominant condition gives rise to yellow color pea and only homozygous recessive condition would give rise to green color pea plants.

Therefore if a pea plant has the recessive allele for green peas it will produce green peas if it does not have a dominant allele for yellow peas.

7 0
3 years ago
What happens to the rate of photosynthesis as the intensity of light or concentration of CO2 increases? And How is your conclusi
NikAS [45]

Answer:

The rate of photosynthesis increases the intensity of light or concentration of CO2 increases, however, at a certain temperature, the rate can decrease due to enzyme denaturation.

Explanation:

Photosynthesis is a unique metabolic process specific to only some organisms. The photosynthetic process, however, cannot occur without some vital ingredients including light, Carbon dioxide (CO2) and optimum temperature.

An increase in the concentration of light (from sun) and CO2 (from atmosphere) increases the rate at which photosynthesis occurs i.e. more light, CO2 results in more photosynthetic process. However, an increase in TEMPERATURE also increases the photosynthetic rate but at a particular temperature, the enzymes that bring about the photosynthetic process can be denatured or damaged, hence, at an EXCESSIVE TEMPERATURE, photosynthesis can be inhibited.

3 0
2 years ago
Match the vocabulary term to the correct definition
KengaRu [80]
1. Organ
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6 0
2 years ago
Read 2 more answers
Sexual reproduction allows for
bekas [8.4K]
Greater genetic diversity, compared to asexual reproduction.

If you think about it, this makes sense because in asexual reproduction, an organism reproduces all by itself, and uses its own genome as the blueprint for its' offspring. However with sexual reproduction, two organisms come together, each contributing half the required chromosomes, and the offspring gets 1/2 it's genes from the mother and 1/2 it's genes from the father. Sexual reproduction allows for greater diversity because it doesn't just rely on mutations to add new diversity to the genepool.
6 0
3 years ago
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