Inspiration or breathing-in is an active process. Which of the following events are related to this process ?
Lifting up of rib cage and contraction of diaphragm.
Lifting up of rib cage and relaxation of diaphragm
Dropping rib cage and relaxation of diaphragm
Dropping rib cage and contraction of diaphragm
The instrument with which mitochondria are observed is
Simple microscope
Compound microscope
Electron microscope
Telescope
The substance in the inner compartment of mitochondria is called
Cristae
NADH
FADH2
Matrix
Synthesis of new molecules in a cell requires the following energy.
Mechanical
Electrical
ATP
Heat
In order to destarch the leaves for an experiment to show that sunlight is necessary for photosynthesis, the :
leaves are kept in alcohol and boiled in a water bath
leaves are soaked in iodine for two hours
plants with the leaves is kept in dark room for 48 hours
plant with the leaves is exposed to light of a lamp, a night before the experiment
The number of phosphate molecules present in ATP is
2
3
4
6
What are the energy producing centres in the cell?
Mitochondria
Golgi complex
Vacuole
Ribosomes
The carboxylic acid formed at the end of glycolysis is
Lactic acid
Oxalo acetic acid
Citric acid
Pyruvic acid
In which one of the following only aerobic respiration is observed?
muscles
yeast
tetanus bacteria
germinating seeds
It is a relatively inactive and highly soluble sugar and constitutes about 90% of the total solute carried in the phloem. Identify it.
Starch
Glucose
Fructose
Sucrose
