A scientist is observing a cell and notices the presence of starch. What does this tell her about the cell? A.
It is an animal cell because starch is the energy storing molecule in animal cells.
B.
It is an animal cell because starch is responsible for protein synthesizing in animal cells.
C.
It is a plant cell because starch is responsible for protein synthesizing in plant cells.
D.
It is a plant cell because starch is responsible for cell building in plant cells.
E.
It is a plant cell because starch is the energy storing molecule in plant cells.

Heyllo,

E.

It is a plant cell because starch is the energy-storing molecule in plant cells.

Plant cells use starch to store extra sugar, whereas animal cells use glycogen.

Here is my notes on carbohydrates (you don't need to see it unless you need an explanation).

All carbohydrates contain carbon, oxygen, and hydrogen atoms.

When you eat anything plant-based, your body uses a complex process called to turn carbohydrates into energy.

There are three types of carbs;

Monosaccharides: 1 sugar molecule

glucose, fructose, galactose.  

disaccharides: 2 sugar molecules linked together.

maltose, sucrose, lactose.  

polysaccharides: many sugar molecules linked.

starch***, glycogen*, cellulose**.

*how animals store glucose. They keep the glycogen in their liver cells.

** The structure of plant cell walls.  

***plants store extra sugar in the form of starch.

so here we go

atomic mass

239 + 1 = y + 134 + 3 combine like terms

240 = y + 137             subtract 137 from both terms

240 - 137 = y

103 = y

atomic number

94 = z +54 + 0

94 = z + 54               subtract 54 from both sides.

40 = z

answer