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docker41 [41]
3 years ago
14

Some scientists estimate that over half of the world's rainforest has already been lost, mostly due to human activities. What wo

uld you predict as a consequence of the massive loss of plant life?
Biology
1 answer:
Anna35 [415]3 years ago
7 0

Answer:

Less oxygen.  Less life.

Explanation:

Plants make up most of our oxygen here on earth, because of the carbon cycle and photosynthesis.  They take carbon dioxide, and turn it into oxygen.  And not only that, but some animals live in trees to protect themselves from birds and other animals.

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Which of the following best describes chemical weathering? I need this ASAP
beks73 [17]

Answer:

D

Explanation:

A process that changes the composition of rocks causing them to break down.

7 0
2 years ago
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Which movement of particles would be most affected by a disorder that causes damage to carrier proteins ?
Makovka662 [10]

Active transport;

The movement of particles would be most affected by a disorder that causes damage to carrier proteins is the active transport.

Explanation;

Active transport involves the movement of materials against the concentration gradient.

This type of transport requires energy in form of ATP to aid the movement of particles from a lower concentration to a higher concentration.

Active transport requires carrier proteins such as the sodium-Potassium pump, to move materials in and out of the cell.

7 0
3 years ago
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Not sure which one plz help
mart [117]

Answer:

I believe it's both C and D

4 0
2 years ago
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Which veterinary professionals design the veterinary curriculum? please help ​
Virty [35]

Answer:

Recent studies of the veterinary profession have established a need for training in various areas beyond those directed toward building competence and proficiency as a clinician. To address this need, a workshop was designed whose objective was to develop a detailed outline of a model curriculum that would encompass the skills, knowledge, aptitudes, and attitudes deemed essential for economic success in the veterinary profession. The model curriculum was created from comprehensive input provided by consultants and educators. Constraints for implementation of this curriculum are identified, and future directions are discussed.

4 0
3 years ago
In this week's experiments, if you replaced glucose with the monosaccharide fructose, predict the results for fructose transport
lbvjy [14]

Answer: Fructose is transported by facilitated diffusion.

Explanation:

Glucose is a monosaccharide with the molecular formula C6H12O6.3 It is a hexose. It is a form of sugar that is found freely in fruits and in honey. Its energy yield is 3.75 Kcal/g under standard conditions.

Fructose is a type of carbohydrate found in vegetables, fruits, and honey. It is a monosaccharide with the same molecular formula as glucose, C6H12O6, but with a different structure, that is, it is an isomer of glucose. Its energetic power is the same as that of glucose, 4 kilocalories per gram, and it is a reducing carbohydrate.

Glucose is the main energy substance of a cell and for its entry  it requires a transport protein in the cell membrane, called transporter. The transport of glucose through the cell membrane is carried out by two families of membrane proteins:

  • Sodium-coupled glucose transporters (SGLT sodium-glucose-transporters), which involves the co-transport of Na+ by the SGLT-1 by maintaining the Na+ gradient thanks to the Na+/K+ pump
  • Glucose transport facilitation proteins (GLUT)

On the other hand,  fructose is absorbed by another type of transporter, called Glut-5, a protein that crosses the membrane 12 times. Finally, the passage of both glucose and fructose into the blood takes place through the Glut-2, a transporter with low affinity and high transport capacity.

If any Glut is considered within the context of a large family of proteins, it can be immediately noticed that they all possess common characteristics that in biochemical terms are called "molecular signature of glucose transporters" and that it is no more than a set of extremely conserved primary amino acidic sequences that determine secondary and tertiary structures (domains or motifs) that are responsible for the functional characteristics of the protein.

<u>Facilitated diffusion is a type of cellular transport where the presence of a carrier or transporter (integral protein, Glut is this example</u>)<u> is necessary for substances to cross the membrane.</u> It happens because the molecules are larger or insoluble in lipids and need to be transported with the help of membrane proteins. So, in the first step, fructose binds to the transport protein, and this changes shape, allowing the passage of this sugar. In this way, fructose concentrations inside the cell are always very low, and the external and internal concentration gradient favours diffusion.

Summarizing, fructose is transported by facilitated diffusion. So if we replaced glucose with fructose we would have seen no change in each conditions. And since fructose is transported by this type of mechanism, there is not a concentration gradient.

6 0
2 years ago
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