The usage and difference of sum, number, amount and quantity in knowledge explanation

The usage and difference of sum, number, amount and quantity in knowledge explanation

A: a large quantity of can modify countable nouns and uncountable nouns a large quantity of… They can be followed by plural countable nouns or uncountable nouns

A number of an amount of a quantity of differences
RT

A number of plural nouns
An amount of is often followed by an uncountable noun
A quantity of countable or uncountable nouns

On the difference between number and amount
1. When expressing quantity, which of the number / amount of sth is countable and which is uncountable?
2. They are followed by large / big?
3. Are they countable? If so, how to understand the plural?

A number of + countable noun plural predicate plural
The number of + countable noun plural predicate with singular
An amount of + uncountable nouns
The amount of + uncountable noun
A number of many, the predicate verb is plural The number of students is increasing

a quantity of quantities of
Which noun after the two words is countable and which is uncountable

A quantity of + UN + singular predicate
A quantity of + PL + plural predicate
Quantities of + UN + plural predicate
Quantities of + PL + plural predicate
Our teacher said it

of.of Usage of
The protein concentrations of the superants of the whole cell lysate were determined using a bio rad protein assay kit
Please translate this sentence

In fact, there is no big difference between your two understandings. I'm used to thinking according to the second one, but the first one and the second one translate in the same order

The difference between the nember of, a great deal, a plenty of, a lot of

It can be said that a good deal of or a good many
The former is not countable, or it is countable, but not of

yes.many of is ok

What's the difference between a large number of, a lot of, plenty of and a great many?

A large number of high tech products have (has) been made in that factory, We still have plenty of time. They are plenty of such persons in our school. Countable and uncountable can be used. He got a lot of (lots of) home work (things) to do after school. Countable and uncountable can be used. They raise a great many (a good many) proposals at the meeting, On that day she received a large quantity of flowers

a great many of people a large number people
a great many of people
a large number people
a great many people
large number people
Is that right? What are the other mistakes?

The third is right

The difference between a great many and a large number of
There are（） words in English that came from other languages.
A.a good many of B.a great deal of
C.a great many D.a large number of
Why?
(the answer is right)

The plural form of a countable noun is added after both phrases, except that of is not added after a great many