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Explain the results of light dependent and light independent reactions

IRISSAK [1]

Hope this helps!

In the light-dependent reactions, energy from sunlight is absorbed by chlorophyll and that energy is converted into stored chemical energy. In the light-independent reactions, the chemical energy harvested during the light-dependent reactions drives the assembly of sugar molecules from carbon dioxide.

3 0

3 years ago

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According to the food chain, label the following organisms appropriately. 1. secondary consumer cat 2. primary consumer grass 3.

-Dominant- [34]

The correct sequence is:

1 Producers ( grass ): The producers are the green plants that produce food for the consumers. Green plants are the producers and energy produced is transferred to primary consumers

2 Primary consumer (mouse): The primary consumers include bacteria and herbivores that feed on the green plants for their energy

3 Secondary consumer (cat): The secondary consumers include the cat and other small animals that feed on primary consumers

4 Tertiary consumer (wolf): The are the at the highest level of hierarchy and feed on secondary consumers for their food. Example wolf,eagle

3 0

3 years ago

Which of the following scenarios is representative of how agricultural practices can affect the environment?

Citrus2011 [14]

The correct answer to the question, 'which of the following scenarios is representative of how agricultural practice can affect the environment' is A. Option A is chosen because it is the only option that refer to another environment which is different from that of the farm. When fertilizers are washed to nearby ponds as a result of erosion, it causes a lot of negative changes in the pond. For instance, the chemicals in the fertilizer can be poisonous to some of the smaller organisms in the pond, this will result in the death of these organisms. Fertilizer run off can also cause excessive growth of plants such as algae in the pond. This may block out the light necessary for the survival of the organisms in the ponds and may also reduce the amount of oxygen available to the organisms living in the pond.

6 0

3 years ago

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In the northern hemisphere, pressure gradients and the coriolis effect applied to low pressure centers produce winds that blow..

Lelu [443]

It will blow internal and counterclockwise. In tornados, the weight diminishes from the external isobars toward the middle. At the point when the weighted slope and the Coriolis impact are connected to weight focuses in the Northern Hemisphere, winds blow counterclockwise around a low. Around a high, they blow clockwise.

7 0

3 years ago

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A mutation creates a dominant negative allele of a particular gene. The normal allele of the gene encodes a protein that forms a

Wewaii [24]

Answer:

87.5% of the trimers in the cell will be inactive.

Explanation:

A monomer is a single subunit. Look at an easy comparison. If a monomer is a ball. For the protein to be functional, it needs to be a trimer .A trimer = 3 monomers joined / bound together with bonds. Therefore, if a monomer is a ball, we need 3 balls, we attach it together and that is the primer . if one ball becomes missing, that protein won't work .

In chemistry, a trimer is regarded as three molecules or ions of the same substance (that is, same type) which are associated together .

Double negative : Each gene has 2 alleles. So, for a positive protein, both allele needs to be same, let's say + means on. So for a x protein , if it's x+/x+ it means the protein is homozygous and active. If for some mutation, it's x+/x- , it's a heterozygous protein. Double negative means when it is x-/x- and this means the protein has lost is function . It's not functional at all.

The heterozygous cell will form one or more subunits has the mutant structure when the gene is expressed. From the question if there is a mutation in dominant negative allele, it will cause the inactivation of one trimer resulting in 87.5% inactive trimers for a heterozygous individual.

There are 87.5 % percent of the trimers present in the cell which will be inactive for a heterozygous individual, If at least one of the subunits has the mutant structure.

The probability for each individual subunit to be a mutant is 1/2

Gene codes for a protein that forms trimer so the percentage of the trimers present in the heterozygous individual is third power of 1/2 =1/8

1/8=0.125 will be active.

1- 0.125 will be inactive.

=0.875 will be inactive.

0.875 × 100= 87.5%

Therefore 87.5% will be inactive.

8 0

4 years ago