Which phrase best describes the chemical structure of each of these molecules?
Draw a line from the molecules to their chemical structure description.
Deoxyribose
i Anucleic acid that contains
I ribose
1
Serine
i A disaccharide made up of
glucose and galactose
RNA
A five-carbon sugar
Lactose
A carboxyl group, an amino
I group, and an Rgroup

Disaccharide is a simple compound which is made up of two molecules of sugar which include glucose and galactose.

These glucose molecules form a crystalline water soluble compound.

This is found in food like sucrose and lactose. This is composed of four chemical grouping of carbohydrates.

Chocolates are also considered as disaccharide compound due to presence of sugar.

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answer-

the statement that f(x) = |x+a| + b has exactly one x-intercept is sometimes correct.

solution-

it solely depends on b, whether the function will have one or two or zero x intercept.

this plot of the given function, f(x) = |x+a| + b will be the basic absolute value graph i.e v shape, with vertex translated to (-a, b), instead of origin.

1-   if b is zero, the graph will have exactly one x-intercept, at x= -a

2- if b is positive, the whole graph will be above the x-axis, hence it will have no x-intercepts.

3- if b is negative, the graph will be below the x-axis, hence it will have two x-intercepts.

∴ the statement is sometimes true.