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const2013 [10]
2 years ago
13

Relate the analogy of “tug of war” to a water molecule.

Biology
1 answer:
ipn [44]2 years ago
5 0

Answer:

water molecules undergo the 'tug of war' via the cohesion-adhesion theory

Explanation:

In plants specifically, a transpiration stream is formed via osmosis from roots into xylem and travels by the apoplast pathway to the leaves, where the water then evaporates from stomata into the surrounding air along the diffusion gradient. the water loss from the mesophyll cells lowers their water potential therefore water moves in via osmosis by both apoplast and symplast pathway from adjacent cells. water bonded to water= cohesion, water bonded to carbohydrates of xylem walls= adhesion. water is drawn up in tug of war-esc fashion against gravity to replace water evaporated, resulting in cohesion-adhesion theory.

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How does the change in temperature affect pepsin?
Oksana_A [137]

Answer

When testing the effect of temperature on pepsin enzyme activity, the results showed that pepsin worked best at the temperature 30 °C. When the temperature decreased to 22 °C, the enzyme activity decreased sharply. Turbot and redfish retained almost half of the activity at low temperatures (5 °C).

4 0
2 years ago
If you weigh 38 kilograms on your bathroom scale, your weight in space will be
Harman [31]

<u>Answer:</u>

<em>less than 38 kilograms</em>

<u>Explanation:</u>

The weight of a body when measured on earth is the resultant force the ground applies to balance the force due to mass of the <em>body and acceleration due to gravity.</em>

Because your weight depends on the gravity you would weigh less on a planetary body with less gravity than on Earth, and in space you would weigh almost nothing at all. So the answer is <em>less than 38 kg</em>

It is <em>measured in Newtons (N)</em>. The weight of a person changes with varying gravity. As such the mass of the body varies through the universe irrespective of the <em>gravity and other external factor</em>. It is measured in kilograms.

8 0
3 years ago
What best describes a vestigial structure​
timofeeve [1]

Answer:

Vestigiality is the retention during the process of evolution of genetically determined structures or attributes that have lost some or all of their ancestral function in a given species. Assessment of the vestigiality must generally rely on comparison with homologous features in related species

Explanation:

please like and Mark as brainliest

3 0
3 years ago
Read 2 more answers
True or false scientists have found new organisms that have the ability to survive extreme temperatures great pressure depths or
DedPeter [7]
I think it is false because they still have the old ones
8 0
3 years ago
Read 2 more answers
Organisms with prokaryotic cells are separated into two.
wolverine [178]

Prokaryotic organisms are separated into two domains or groups: Bacteria and Archaea.

<h3>What are prokaryotic organisms?</h3>

Prokaryotic organisms are those whose cells do not have a membrane that delimits the cell nucleus and, instead, present their genetic material dispersed in an area called the nucleoid.

<h3>Characteristics of prokaryotic organisms</h3>

  • Prokaryotic cells form unicellular living organisms, belonging to the Archaea and Bacteria domains, depending on the preferred biological classification.

  • The Bacteria domain groups the most primitive prokaryotic organisms of all, they are dedicated to various types of metabolic activity: photosynthesis, such as cyanobacteria (blue-green algae), the decomposition of organic matter, etc.

  • The Archaea domain groups the archaebacteria or archaea, prokaryotic organisms that exhibit certain similarities with eukaryotic life, exist in very specific and generally hostile habitats (leading an extremophile life).

Therefore, we can conclude that the two domains, bacteria and archaea, encompass the world of prokaryotic organisms, that is, those that lack a cell nucleus.

Learn more about prokaryotic organisms here: brainly.com/question/1056970

4 0
2 years ago
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