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lesya692 [45]
3 years ago
13

3. Mutations that occur in the BPG binding cavity on deoxyhemoglobin can at times result in the substitution of lysine and histi

dine residues present with aspartic acid and phenylalanine residues. Explain how these changes would impact BPG binding to deoxyhemoglobin along with the impact it would have on oxygen transport with hemoglobin
Biology
1 answer:
Ber [7]3 years ago
4 0

Answer:

It affects the oxygenation of the tissues in a negative way, that is, causing tissue hypoxias.

Explanation:

What will happen is that BPG, having a different relationship with deoxyhemoglobin, hemoglobin will not give oxygen to organs or tissues during glycolysis at times when the sympathetic nervous system is activated or even in the maintenance of physiological tissue vitality, therefore it will trigger a drop in the partial pressure of the gas both in the blood and in the tissues since they will be retained in the hemoglobin structure without being able to release it.

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Cytokinesis in animal cells involves: a) Alignment of the spindle along the equatorial plane. b) Formation of a cleavage furrow.
hjlf

Answer:

The correct answer will be options-B and D

Explanation:

Cytokinesis is the process of cell division which divides the cellular components along with the nuclear component. The cytokinesis takes place after the completion of M-phase which differs in both animal and plant cell.

In an animal cell, the cytokinesis begins by the formation of furrow which eventually pinches off to two cells.

The formation of the furrow is a complex process and requires the microtubules like an actin-myosin ring which gets established in which the actin filaments from the ring. The myosin filaments pull the actin filaments and then forms the ring.

Thus, options-B and D are the correct answer.

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4 years ago
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olga nikolaevna [1]
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8 0
3 years ago
Which statements describe freshwater sources? Check all that apply.
vekshin1

"Rainwater can replace or replenish freshwater sources" and "precipitation, such as rainwater, is a source of freshwater on Earth" statements describe freshwater sources

<u>Explanation:</u>

Rainwater a source of pure distilled water, evaporated by the sun. When it falls it comes in contact of air and land. when ground soaks the water it becomes mineral water. And it is safe for drinking.

All the freshwater sources are result of precipitation from the earth surface,in various form i.e rain,mist,snow.  Freshwater falling as rain have materials dissolved from atmosphere in it,sea and the land over which the clouds has travelled.

7 0
4 years ago
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Ilia_Sergeevich [38]

Answer:

1. It can transfer energy through empty space.

Explanation:

7 0
3 years ago
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The consumption of mosquitoes by bats and the control of flooding provided by tropical forests in mountainous areas of central a
Sati [7]

Answer:

The consumption of mosquitoes by bats and the control of flooding provided by tropical forests in mountainous areas of central america are examples of <u>ecosystem services</u>.

Explanation:

Ecosystem services can be described as the functions performed by parts of the ecosystem which benefit in regulating the ecosystem. These services offer a huge help to humans without the humans having to perform any work. For example, in the above question, humans are naturally getting rid of mosquitoes because the mosquitoes are being consumed by the bats. The floods in Central America are also being controlled by the tropical forests and humans have no work in it. Hence, both these examples show ecosystem services.

4 0
3 years ago
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