Negatively charged particles are found where in an atom? Question 2 options: In
ID: 49255 • Letter: N
Question
Negatively charged particles are found where in an atom?
Question 2 options:
In the nucleus
In a single layer outside the nucleus
In multiple layers outside the nucleus
Both inside and outside the nucleus
You have a solution that has a pH of 8 and need it to be pH 5. What do you do?
Add water
Add a base
Add an acid
Add a buffer
What characteristic of carbon makes it a good backbone for creating diverse and durable molecules?
Question 5 options:
Carbon is a large atom.
Carbon forms four covalent bonds.
Carbon forms hydrogen bonds.
All of the above
Which of the following structures can be found together in eukaryotic cells?
Question 6 options:
cytoplasm and ribosomes
cytoplasm and plasma membrane
DNA and ribosomes
ribosomes and endoplasmic reticulum
In the nucleus
In a single layer outside the nucleus
In multiple layers outside the nucleus
Both inside and outside the nucleus
You have a solution that has a pH of 8 and need it to be pH 5. What do you do?
Question 4 options:Add water
Add a base
Add an acid
Add a buffer
Explanation / Answer
2.
Negatively charged particles are found in multiple layers outside the nucleus in an atom. Option 3 is correct. Infact it is most appropriate to describe the revolving electrons as an elctron cloud.
4.
To make the solution of pH 8 to pH 5, acid should be added to decreases the pH and make the solution more acidic. Option 3 is correct.
5.
Carbon is a large molecule with 4 covalent bonds and also it can form hydrogen bonds. Hence option 4 is correct.
6.
Ribosomes and endoplasmic reticulum are found together in the nucleus of eukaryotic cells. Sice endoplasmic reticulum is studded with ribosomes, it is known as rough endoplasmic reticulum. It is the site for protein synthesis. Option 4 is correct.
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