The graph illustrates the activity level of three common digestive enzymes, across a range of pH values. Which enzyme is likely to be active in the acidic environment of the stomach?A)
pepsin
B)
trypsin
C)
amylase
D)
pepsin and trypsin

Answers

Answer 1

Answer:

Answer: A) Pepsin

Explanation: Acidic solutions are solutions which provide H^+ ions .More is the H^+ ion concentration, more acidic is the solution.

pH of a solution is defined as negative logarithm of H^+ ions concentration.

$pH =- log{[H^+]}$ or

$pH = log(1)/([H^+])$

Thus lesser is the pH,more is the H^+ concentration and more acidic is the solution.

Thus acidic solutions have low pH and pH ranges from 1 to 7 for acidic solutions.

As can be seen from the graph, enzyme pepsin has highest activity at low pH which means in acidic solutions. As the pH is increasing or the solution is turning basic, the activity of pepsin decreases.

Answer 2

Answer: I think amylase as well

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Of the following, identity the system you would find in a human, but not in a flatworm.a nervous system
a digestive system
a respiratory system

Answers

Answer:

a respiratory system

Explanation:

i took the test and it was right

What characteristic is shared by both inceptisols and entisols, the soils of flood plains? a. They both have well-developed soil horizons and profiles. b. Both are young and only beginning to develop horizons and a soil profile. c. They are both at the final stage of soil development. d. None of the above

Answers

Answer:

D. none of the above

Explanation:

I am a student on ed=genuity and I just took thee test and passed flying colors.

Answer:

The characteristic that is shared by both inceptisols and entisols, the soils of flood plains is: Both are young and only beginning to develop horizons and a soil profile.

If several species of carnivores and removed from an ecosystem, the most likely effect on the ecosystem will be

Answers

Answer:

A decrease in stability among populations

Explanation: if several species of carnivores are taken away from an ecosystem, there will be an instability among populations. Some of the factors that might cause the decrease in stability are that there would be an over population of the prey animal that would not be eaten by the carnivores and that the plant life would be in danger because of the over population of hervibores.

More herbivores and omnivores would thrive, but the plant life in said ecosystem would eventually become endangered.

In order to decrease the genetic diversity of a population, you would need toadd individuals to a population
only let individuals breed with other individuals that have very different characteristics
increase a population's territory
remove individuals from a population

Answers

remove individuals from a population

Name two ways water travels from land to enter the ocean

Answers

Answer:

Seepage; runoff

Explanation:

In nature, water is constantly circling: from the water surfaces it evaporates, travels up in the atmosphere, there it condensates, forms clouds, and then again falls to the land and water surfaces. This cycle has been going on for thousands and thousands of years and is known as the water cycle.

Now, the real question is how does the water, fallen from the clouds, on the land, travel back to the oceans.

Soil consists of multiple layers, some are water permeable, and some are not. When water (rain) reaches the soil, through tiny pores in upper permeable layers it will travel downward, deeper and deeper. This process is called the seepage. Upon reaching the water-impermeable layers, it stops, becoming part of what is known the underground water. It will continue to flow on this layer until it finds its way back on the surface, usually in a form of a spring, which will find its way to a river, and river will take that water to a sea or an ocean.

However, if the soil is to saturated with water, especially during long rainy, stormy period, or in the spring, after the snow melts. This excess water will, because of the gravity, flow over the earth's surface, from higher (mountains) to lower (valley) areas, making its way to some valley river, which will take it further to a sea or an ocean.

Upon reaching the ocean, this land-water can again join the water cycle, again and again.

-Water evaporates and condenses into clouds, then the clouds are blown over the ocean, and it rains.
-Water from a mountain flows down and into a river. The river empties into an ocean.

What type of macromolecule is the sugar fructose?