The Endocrine System — Biology STD 10 — Question

Osmosis is the diffusion of________________ molecules from the region of their________________ concentration to the region of________________ concentration through a semi-permeable memberane.

Carbon dioxide enters the leaf through ___________ .

Given below is certain structure, write the term for the functional activity.
Neutrophils and …………………………………..

Choose the odd one out from each series
The hormones – insulin, glucagon, cretinism, thyroxine
………………………………………….

Complete the following sentence with appropriate word:

______ supplies blood to kidney.

During Telophase I of meiosis cell division, each chromosomes, consisting of two ______ (i) ______ reach the opposite poles of the cell. The ______(ii) ______ envelope begins to reform around these chromosome clusters. Meanwhile, the cell starts to ______ (iii) ______ preparing for its division into two cells. This stage is crucial as it marks the end of the first ______ (iv) ______ division, setting the stage for ______ (v) ______ where the cell actually divides into two new cells.

Petrol engine gives off gaseous oxides of ______

Transpiration normally takes place in the presence of ___________.

DNA acts as director of ______ synthesis.

Arteries are _____ walled and the veins are _____ walled vessels.