28 Questions
Which of the following is NOT one of the four categories of large molecules in cells?
Carbohydrates
Which type of organic molecule has a unique three-dimensional shape that defines its function in an organism?
Proteins
Which type of carbohydrate is found in sports drinks and is the main fuel that cells use for cellular work?
Monosaccharides
Which type of disaccharide is the most common?
Sucrose
What is the main function of starch in plant cells?
Energy storage
Which lipid is a structural component of cell membranes?
Phospholipids
What is the function of cholesterol in the body?
Production of other steroids
Which type of cholesterol is often referred to as 'bad cholesterol'?
LDL
What happens to excess cholesterol in the body?
It is packaged into HDL
How many of the 20 amino acids can our body synthesize?
11
What is the primary structure of a protein?
The arrangement of amino acids in the protein
Which of the following correctly describes the structure of DNA?
DNA is double stranded with deoxyribose sugar and pairs adenine with thymine.
Which of the following correctly describes the structure of RNA?
RNA is single stranded with ribose sugar and pairs adenine with uracil.
Which of the following correctly describes the pairing of nitrogenous bases in DNA?
Adenine pairs with thymine and cytosine pairs with guanine.
Carbohydrates include: - Small sugar molecules in soft drinks - Long starch molecules in pasta and ______.
potatoes
Monosaccharides are simple sugars: - Glucose is found in sports drinks. - Fructose is found in ______. Honey contains both glucose and fructose.
fruit
There are four categories of large molecules in cells: - ______ - Lipids - Proteins - Nucleic acids
Carbohydrates
Disaccharides are joined through a dehydration ______.
reaction
The most common disaccharide is ______.
sucrose
Polysaccharides are complex carbohydrates that are long chains of ______ units.
sugar
Lipids are insoluble in ______.
water
DNA is a ____ stranded molecule.
double
RNA is a ____ stranded molecule.
single
The sugar in DNA is _____.
deoxyribose
______ is often called 'bad cholesterol'
LDL
Excess cholesterol is packaged into ______
HDL
High LDL is bad, high HDL is ______
good
A protein's shape is sensitive to the surrounding ______
environment
Test your knowledge on lipid transport and cholesterol with this quiz! Learn the importance of LDL and HDL cholesterol, how they affect heart disease, and how the liver recycles cholesterol. Find out why high LDL is bad and high HDL is good.
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