Water affects the rate of photosynthesis indirectly. When the water supply is limited then stomatal closure affects the rate of photosynthesis.... View Article
Evidence that supports the theory of evolution are fossils, embryological studies, anatomical and morphological characteristics (homologous... View Article
The repressor is coded by gene-i in the lac operon. It is produced all the time. It binds to the operator and inhibits the transcription of the... View Article
The main function of renin and aldosterone is to regulate blood pressure and maintain the electrolyte balance. Renin converts angiotensinogen to... View Article
Digestive glands secrete digestive juices, which contain enzymes for digestion of food. The digestive system also contains associated glands such... View Article
Pure water has the maximum water potential as the concentration of water molecules is the highest in pure water. Addition of solute decreases the... View Article
Primary phloem is produced from the apical meristem, which is a primary meristematic tissue, whereas secondary phloem is produced by vascular... View Article
Ketogenesis is a catabolic process. Ketone bodies are formed due to catabolism of fatty acids and ketogenic amino acids. Ketone bodies formed are... View Article
One molecule of pyruvate produces 4 molecules of NADH, 1 molecule of FADH2 and 1 molecule of ATP in oxidative decarboxylation and Krebs cycle.... View Article
Vernalisation is the process of stimulating flowering in plants or seed production after exposure to low temperatures. Artificial exposure to low... View Article
Cambium is absent in monocots. Cambium is responsible for secondary growth (increase in girth) in dicots. Further reading: Flashcards Of... View Article
If a process is governed by more than one factor, then the factor, which is present in the minimal amount is called the limiting factor and any... View Article
The lymphatic system constitutes lymph vessels, lymph nodes, lymphoid organs and tissues. Lymph is interstitial fluid or tissue fluid, present in... View Article
Natural selection is the process by which organisms having variations, which are better suited to the environment, are more likely to survive and... View Article
Genes carry genetic information, which is inherited from one generation to another. Some genes code for a functional product or proteins. There... View Article
DNA replication results in the duplication of DNA content of the cell. It occurs during the S phase of the cell cycle. DNA replication is... View Article
Embryology is the study of embryo development. It is the phase after fertilization and before birth. Further reading: MCQs On Embryology... View Article
The i-gene in lac operon codes for repressor, which is synthesised all the time. In absence of inducer, the repressor protein binds to the... View Article
Mass extinction causes great loss to biodiversity but it also has a creative role to play in evolution. It reduces competition for resources and... View Article
Jean-Baptiste Lamarck, in the early 19th century, proposed his theory of the transmutation of species, the first fully formed theory of... View Article
