BIOLOGICAL MOLECULES (Carbohydrates)

Question 1

What chemical elements does carbohydrates have?

Answer 1

C, O,H

Question 2

What chemical elements does Lipids have?

Answer 2

C, O(lower), H

Question 3

What chemical elements does protein have?

Answer 3

C,O,H,N+(some sulfur)

Question 4

What are the basic units of all carbohydrates?Can you name some?

Answer 4

(simple sugars) e.g glucose and fructose(fruit sugar)

Question 5

What is glucose?

Answer 5

A monosaccharide (simple sugar)

Question 6

What is formed when 2 glucose molecules join together?

Answer 6

maltose (1 glucose+glucose)
and
sucrose (2 glucose+fructose)

BOTH DISSACCHARIDE)

Question 7

What is formed when lots (chains) of glucose molecules join together?

Answer 7

Starch (in plants) (storage carb) e.g wheat’s)

Glycogen(animal cell) (when humans want to store carbohydrates)

Question 8

What percentage of mass does carbohydrates make up in the body?

Answer 8

1%

Question 9

What is the role of carbohydrates?

Answer 9

supplies cells with energy–) cells release this energy from a type of carbohydrate called glucose via cell respiration

Question 10

What is cellulose(plant cell wall)?what is its role?

Answer 10

is a carbohydrate and polymer of glucose,

can’t digest it used as a dietary fibre

Question 11

What is a polymer?

Answer 11

a long and repeating chain of the same molecule stuck together.

Question 12

Where do we get the majority of our carbohydrates?

Answer 12

we get the majority of our carbohydrates in the FORM of starch from vegetables, rice and grains

Question 13

what are all carbohydrates converted into?

Answer 13

converted to glucose and absorbed into the blood

Question 14

What carbs can dissolve

Answer 14

Glucose, lactose and sucrose(sugars), are found in sweet foods and dissolves in water