What forms of energy are there?

Biology

1 answer:

Wittaler [7]2 years ago

7 0

mechanical, kinetic, potential, gravitational, thermal, chemical, electrical, light, radiant, sound, and nuclear.

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The heating curve of an ice-water mixture that is slowly heated to 125°C contains three sloped and two level portions. What do t

scZoUnD [109]

The 2 level portion in the graph represents the changing of state.

Every substance has internal energy, which includes kinetic energy and potential energy. Kinetic energy means the temperature, and the potential energy means the bondings or attractions.

When a substance is heated up, they first increase their temperature as the same state. For example, the ice starts at - 5 °C, they won't start melting immediately as they're not at their melting point yet. Instead, they first absorb heat and increase their temperature to 0°C. This is same for when water increase their temperature until their boiling point. Their kinetic energy is increasing, but potential energy is unchanged as they stay at the same state. That's why the slope is increasing.

However, but once the ice or water has reached their melting or boiling point, they have to go through a state change. During that time, they do not increase their temperature (K.E. unchanged) . Instead, the heat they absorbed is used to increase the potential energy to break the bonds and turn into another state. The heat absorbed is called latent heat.

This explains why in the graph, there's 2 level portions, as the substance is going through a state change and increasing their potential energy instead of their kinetic energy (temperature)

4 0

3 years ago

Read 2 more answers

A researcher has performed a BLASTp search for a protein of interest. He identifies a globular protein that shares 30 percent of

Alex_Xolod [135]

Options are not provided in the question. The complete question is as following:

A researcher has performed a BLASTp search for a protein of interest. He identifies a globular protein that shares 30 percent of its amino acid sequence and positioning with his target protein. What can he conclude about the shape of his protein of interest?

a) It is also a globular protein.

b) It is a fibrous protein.

c) It has only a primary structure.

d) It demonstrates only pleated sheets as part of its structure.

e) The researcher can conclude nothing about his protein of interest.

Answer:

a) It is also a globular protein.

Explanation:

Globular proteins are one of the common form of protein (the other are fibrous, disordered, and membrane proteins) having spherical shape.

Protein-protein BLAST (blastp), This software returns the most related sequences of protein from the protein database defined by the user, provided a protein query.

So, the blastp has searched for globular protein.

Hence, the correct option is a.

6 0

3 years ago

When mendel crossed peas with rr and rr genotypes (where r is dominant and produces wrinkled peas and r is recessive and results

LuckyWell [14K]

I think your question all turn into lowercases, uppercases, and lowercases are important in genetics because it can differentiate between the dominant and recessive forms.
let me explain at least how to calculate the offspring percentage:
for example, you have Rr crossed with another Rr (R for wrinkled peas and r for smooth peas), you just have to match between the four letters, and you will have four possibilities:
R and R
R and r
r and R
r and r
you will have RR, Rr, Rr, and rr
if we convert into percentages, it will give:
25% RR
50% Rr (there's two Rr so 25 + 25)
25% rr

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3 years ago

What are organisms?

IRISSAK [1]

I'd say D but i'm not 100% sure

8 0

3 years ago

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What molecule forms a double helix structure composed of two complimentary strands of nucleotides?

Brrunno [24]

DNA! the question is a typical descrption of it

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3 years ago