Mitochondria
A - VCE - SSCE Biology - Question 15 - 2009 - Paper 1
Question 15
Mitochondria
A. contain circular DNA.
B. are the site of glycolysis.
C. prepare proteins for the Golgi complex.
D. produce 2 ATP molecules per molecule of glucose.
Worked Solution & Example Answer:Mitochondria
A - VCE - SSCE Biology - Question 15 - 2009 - Paper 1
Step 1
A. contain circular DNA.
96%
114 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
While mitochondria do contain circular DNA, which is reminiscent of prokaryotic DNA, this statement is accurate. Mitochondrial DNA is distinct from nuclear DNA and is involved in encoding essential proteins for mitochondrial function.
Step 2
B. are the site of glycolysis.
99%
104 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
This statement is incorrect. Although mitochondria are crucial for cellular respiration, glycolysis occurs in the cytoplasm, not in the mitochondria.
Step 3
C. prepare proteins for the Golgi complex.
96%
101 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
This statement is also incorrect. Mitochondria do not prepare proteins for the Golgi complex; rather, they are primarily involved in energy production and metabolic pathways.
Step 4
D. produce 2 ATP molecules per molecule of glucose.
98%
120 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
This statement is misleading. While glycolysis, which occurs in the cytoplasm, produces 2 ATP molecules per glucose molecule, the mitochondria are primarily responsible for producing a much larger number of ATP through oxidative phosphorylation, typically around 30-32 ATP per glucose.
