A test tube contains yeast in a glucose solution con...
A test tube contains yeast in a glucose solution containing alkaline pyrogallol. The bubbles of carbon (IV) oxide produced indicates that the yeast cells are
respiring in the absence of oxygen
liberating oxygen on their own
living and consuming oxygen
being killed by the alcohol produced
Correct answer is A
No explanation has been provided for this answer.
In the diagram, the change in the length of the neck of the giraffes shown was brought about by ...
In the woody stems, gaseous exchange takes place through the ...
A plant which grows on another plant without apparent harm to the host plant is called ...
Production of naked seeds is a distinctive feature of the group of plant called ...
In the kidney, both useful substances and waste are removed from the blood by ...
Which of the following reagents is used to test for starch? ...
Which of the following statements about viruses is true? ...
Green plants are important in the ecosystem because they are ...