Chap 1 - Biological molecules

Question 1

What does carbohydrates consist of

Answer 1

Single sugar ( monosaccharide ) , double sugar ( dissaccharide ) and complex carbohydrates ( polysaccharide )

Question 2

What is food high in carbohydrates

Answer 2

Rice, noodles, potato and bread

Question 3

What is simple sugars

Answer 3

Basic unit of carbohydrates ➡ glucose and fructose

Question 3

What are small molecules

Answer 3

Cannot be further digest and readily absorbed by cell

Question 4

Where can glucose be found

Answer 4

Plants, animal and humans

Question 5

Where can fructose be found

Answer 5

plants

Question 6

What is double sugar and where are they found

Answer 6

Two single sugars like maltose and sucrose join together that are found in plants

Question 7

What is complex carbohydrates

Answer 7

Many single sugar molecules join together to form larger molecules

Question 8

What does glycogen, starch and cellulose make from

Answer 8

Glucose molecules

Question 9

What is starch

Answer 9

Storage of glucose in plants

Question 9

What is Glycogen

Answer 9

Storage of glucose in animals that are found in liver and muscles

Question 10

What is cellulose

Answer 10

Provides structure support for plant cell ( mainly cell wall )

Question 11

What are the elements that make up carbohydrates

Answer 11

Organic molecules ➡ make up of carbon, hydrogen and oxgyen

Question 11

What is the function of carbohydrates

Answer 11

Immediate source of energy where energy is release from glucose ( single sugar ) during respiration and to form cell structure for cell wall

Question 12

Molecules are make up of carbon atoms ➡ chemically linked to other elements found in living things true or false

Answer 12

True

Question 13

What happen if protein is tested with biuret

Answer 13

The protein make it purple

Question 13

Complex carbohydrates provide a long or short term of energy

Answer 13

Short term energy ➡ digested into glucose to use for respiration

Question 14

What happen if starch is tested with iodine

Answer 14

Starch turn blue - black

Question 14

What if fats is tested with ethanol

Answer 14

Fat will cause a white and cloudy emulsion ( Lipids )

Question 14

What is the strucuture if protein

Answer 14

Larg molecules make out of simpler molecules ➡ animo acid

Question 14

Whah happpen if animo acid join to form single polypetide chain

Answer 14

It folds itself into three - dimensional shape or fold with other polypetide to form three - dimensional shape

Question 15

What is food high in protein

Answer 15

Milk, meat, egg and seafood

Question 16

What is the elements that make proteins

Answer 16

Organic molecules ➡ carbon, hydrogen, oxygen and nitrogen and sometimes sulfur

Question 17

What is the function of proteins

Answer 17

Synthesis of new protoplasm ( nucleus, vacuole, etc ) for growth and repair of worn - out cells

Question 18

What is the elements of fats

Answer 18

Carbon, hydrogen and oxgyen

Question 18

What is food filled with fats

Answer 18

Nuts, oil and cheese

Question 18

What is the structure of fats

Answer 18

Make up of smaller units that contain one unit of glycerol and three fatty acids

Question 19

What is the function of fats

Answer 19

Insulation to prevent excessive heat lose and long term storage of energy to storage more energy