Unit 1
What macromolecule contains nitrogen?
Lipids, Proteins, or Carbohydrates
Proteins
Does activated of facilitated transport require a cell to use energy?
activated
Where does translation occur?
the cytoplasm (on a ribosome)
What is the difference between an amino acid and a protein?
Amino acids are the building blocks of a protein. A protein is a chain of amino acids that are connected to each other.
What is the START codon?
AUG
Because the oxygen in a water molecule is negatively charged and the hydrogen positively charged, we call this (Ionic or Polarity)?
Polarity
Where can you find ribosomes in the cell? Name two places.
Rough ER and cytoplasm
In the central dogma of biology, does genetic information direct the synthesis of polypeptides?
Yes / True
What type of bond is holds DNA strands together
hydrogen bonds
What does tRNA carry to the ribosome? Name one of the two.
anticodon and amino acid
True or False. Enzymes influence the rate of chemical reactions.
True
Prokaryotic cells have all of the following EXCEPT:
(DNA, Ribosomes, Nuclear Envelope, Enzymes)
Nuclear Envelope
What is located at each end of the tRNA molecule?
Anticodon and amino acid
How many codons equals 1 amino acid?
What mRNA would be created from this strand: A-T-G-G-C-C
UAC CGG
All macromolecules contain which three elements (ex: carbon, _______, ________.
DNA replication occurs in what part of interphase?
S phase
Where must an mRNA attach before a protein can be made?
mRNA must attach itself to a ribosome
Using a codon wheel what amino acid is UUG?
Leucine
What elements does a protein contain (ex: carbon)
Carbon, Hydrogen, Oxygen, Nitrogen
What does DNA stand for?
de oxy ribo nucleic acid
deoxyribonucleic acid
What happens in the G1 phase of the cell cycle?
A codon is a sequence of how many bases?
3 bases
What tRNA anticodons would pair with this mRNA sequence: U-A-G-C-U-A
A-U-C-G-A-U
What are 3 types of RNA?
mRNA, tRNA and rRNA