Biology Final Flashcards
what is the balanced chemical equation for photosynthesis?
6 CO2 + 6 H2O → C6H12O6 + 6 O2
What is the word equation for photosynthesis
carbon dioxide + water → sugars + oxygen
What is removed when energy in ATP is released?
a phosphate group
Where do the light-dependent reactions take place in photosysnthesis?
the thylakoid membrane
why do plants appear green?
chlorophyll reflects green light
What is NADP+ in photosynthesis?
it is an electron carrier
How are the electrons for the light-dependent reactions obtained?
by splitting water molecules.
What is the correct order for cellular respiration?
Glycolysis → Krebs Cycle → The Electron Transport Chain
What does the Krebs Cycle need to occur?
oxygen
Where does electron transport take place in eukaryotes?
the innner mitochondiral membrane
The air bubbles and apongy bread are due to what?
alcoholic fementation
When is DNA replicated?
during the S-phase of the cell cycle
What is the advantage sexual reporduction has over asexual reproduction?
provides more genetic diversity
What are the differnt forms of a gene called?
alleles
What is codominace?
When an organisn has two dominant alleles. The offspring will show both alles instead of one.
What happens at the end of miosis?
4 genitcally different cells
Where is DNA found in eukaryotes?
in the nucleus
What molecule stores information in the cell?
DNA
What scientist took x-ray diffraction pictures of DNA?
Rosalind Franklin
Chargaff’s Rule
Adenin(A) = Thymine(T) and Guanine(G) = Cytosine(C)
What does the the enzyme DNA Polymerase do?
it joins nucleotides together to sythesize a new complimentary strand of DNA
Characteristics of RNA
- single-stranded
- uses the sugar ribose
- uses the base uracil
How many nucleotides are needed to code for 1 amino acid?
3
What is the process by which mRNA is made from DNA?
transcription