Compounds from storage organs are never re-exported

How many of the following statements are not correct? [I] In a flowering plant the substances that would need to be transported are water, mineral nutrients, organic nutrients and plant growth regulators. [II] Over small distances, substances move by diffusion and by cytoplasmic streaming supplemented only by passive transport. [III] Organic and mineral nutrients undergo multidirectional transport through the xylem. [IV] From the storage organs, organic compounds are later re-exported. [V] Phytohormones and other chemical signals are transported to maintain and regulate the plant functions.

The free genes started absorbing the organic compounds from the prebiotic soup and evolved into

Assertion: Anaerobic respiration occurs in the aquatic organisms. Reason: Aquatic organisms are never autotrophic.

Long distance transport of organic compounds in a plant from a source to a site is known as ……………………...

Assertion. The thallus of Riccia is internally differentiated into an upper photosynthetic region and lower storage region. Reason. The lower storage region is formed from parenchymatous cells.

An organic compound undergoes addition reactions and gives a red precipitate with ammoniacal cuprous chloride. Therefore, the organic compound could be:

A compound produced by an organism that inhibits the growth of another micro organism is called

To determine the type of organic compounds found in living organisms, the living tissue is ground in

Identify the examples of homologous structures from the following- (i) Vertebrate hearts (ii) Thorns in Bougainvillea and tendrils of Cucurbita. (iii) Food storage-organs in sweet potato and potato.

Identify the examples of homologous structures from the following- (i) Vertebrate hearts (ii) Thorns in Bougainvillea and tendrils of Cucurbita. (iii) Food storage-organs in sweet potato and potato.