Biomolecules
What are the four biomolecules?
Carbohydrates, Lipids, Proteins, and Nucleic Acids
what is the cell membrane?
A semi-permeable barrier that surrounds all cells
Do animals and plants both have a cell wall?
No, only plants have a cell wall
Where is DNA located?
What does heterozygous mean?
Having two different alleles of a particular gene
Which of the elements consists of amino acids?
Proteins
What is the membrane composed of?
A phospholipid bilayer
Where does photosynthesis take place?
The chloroplasts
What are the 2 steps of protein synthesis?
Transcription and Translation
What does homozygous mean?
Having two identical alleles for a particular gene
what is the function of nucleic acids?
To transport genetic information
what is homeostasis?
The ability to obtain a balance
What is the function of the mitochondria?
To make ATP energy
Transcribe this DNA sequence to mRNA:
TAC ATA TAT CAG GAC GTC AAA
AUG UAU AUA GUC CUG CAG UUU
T or F:
Before most cell divisions, most cells do not increase in size.
False
Which of the biomolecules is made up of CHO, CHON, and CHONP?
CHO- carbohydrates, lipids
CHON- proteins
CHONP- nucleic acids
No energy required to move from high to low concentrations
How do plant cells differ from animal cells?
Plant cells have a cell wall, a large central vacuole, chloroplast, and its more square shaped
What sugar is in DNA?
Deoxyribose
T or F:
Many species of bacteria have a single circular chromosome that consists of double stranded DNA.
True
What are the main 3 factors that affect enzymes?
Temperature, PH, and Denaturation
Active transport....?
What is the difference between prokaryotic and eukaryotic cells?
Prokaryotic- simple, smaller, bacteria, no nucleus, no membrane bound organelles, circular DNA
Eukaryotic- more complex, larger, plants, animals, fungi, nucleus containing DNA in chromosomes, membrane bound organelles
What 3 things make up a nucleotide?
Phosphate, sugar, and nitrogen base
What does heredity mean?