Biology
Glycolysis is a process
- in which glycogen is broken down into glucose
- which occurs in mitochondria
- in which glucose is broken down into pyruvate
- that occurs next to Krebs cycle.
Answer
in which glucose is broken down into pyruvate
Reason — Glycolysis is the first phase of respiration in which glucose is broken down into pyruvate.
Glycolysis occurs in the cytoplasm of the cell, not in mitochondria. The mitochondria are involved later in respiration. In this process, one molecule of glucose is converted into two molecules of pyruvate, releasing energy. Glycolysis occurs before the Krebs cycle, not “next to” it. It happens in the cytoplasm, while the Krebs cycle occurs in the mitochondria.
Related Questions
Fill in the blanks:
In anaerobic respiration in plants, the end product is …………… and …………… instead of …………… in animals.
The table below is intended to give certain differences between photosynthesis and respiration, but a few points are given wrongly. Strike out the wrong ones and write the correct words instead.
PHOTOSYNTHESIS RESPIRATION Results in loss in weight Results in gain in weight Sucrose is the product Sucrose is broken down Occurs in green cells only Occurs in all cells Uses water and oxygen Uses glucose and oxygen In plants, a common function is performed by?
- Stomata and veins
- Stomata and lenticels
- Lenticels and sepals
- Lenticels and hydathodes
Anaerobic respiration normally occurs in
- Grass
- Cactus
- Coconut
- Baker’s yeast