Carbohydrates
Glucose is a building block of carbohydrates, which of these best describes glucose?
a. nucleotide b. protein
c. monosaccharide d. lipid
c. monosaccharide
what type of molecule do whales use for energy storage and insulation?a
a. DNA b. glucose
c. fat d. starch
c. fat
Monomer
nucleotides
Which molecules are joined together to make proteins?
a. fatty acids b. nucleic acids
c. amino acids d. acetic acids
c. amino acids
Which of the following is NOT a characteristic shared by all living things?
a. reproduction b. use of energy
c. ability to move d. response to stimuli
c. ability to move
Function of Carbohydrates.
primary (quick) storage and release of energy, structural support and protection
Function of lipids
secondary energy source, parts of membranes and waterproof coverings
2 examples of nucleic acids
DNA and RNA
What level of protein structure is the 3D formation of a protein?
Tertiary
Living things are based on a universal genetic code. What molecule is responsible for that code?
DNA
List 2 examples of carbohydrates.
starch, glycogen, cellulose, sugar,
Lipids have no true monomer or polymer, but they all are contain ___________ and ___________
glycerol (head) and fatty acid (tail)
What are the subunits of DNA and their function?
a. nucleotides that store information
b. monosaccharides that provide quick energy for the cell
c. lipids that store energy and provide insulation
d. proteins that provide the building blocks for the structural components of organisms
a. nucleotides that store information
Amino acids are linked to get her by a ___________ to form a polypeptide
peptide bond
A worm turns away from light is an example of a worm
response to environment (stimuli)
What elements make up carbohydrates?
carbon, hydrogen, oxygen
Lipids are known to be used in waterproofing, this is because lipids are __________
hydrophobic
What is the difference between DNA and RNA?
the type of sugar:
DNA- Deoxyribose
RNA- Ribose
Proteins are very diverse due to their _________
R-group
In humans, glucose is kept in balance in the bloodstream by insulin. Which concept does this best illustrate?
a. adaption b. homeostasis
c. metabolism d. organization
b. homeostasis
What is the ratio of the elements present in carbohydrates?
1:2:1 -> C:H:O
What is the difference between saturated and unsaturated fats? (at the atomic level)
at least one double bond
3 parts of a nucleotide
5- carbon sugar, nitrogenous base, phosphate group
explain how amino acids bond
the amine group of 1 amino acid joins to the carboxyl group of another amino acid, a water molecule is lost and peptide bond is formed.
Whales used to have legs, and a pelvis can still be found in their skeleton. However, after millions of years, they no longer have legs. What characteristics is identified here?
evolution