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What Are Flame Cells?

All flame cel...

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All flame cells form a common duct called tubule which opens outside. Explain.

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Q. The proximal convoluted tubules of many nephrons open into a straight tube called collecting duct

Q. Assertion :The regions outside the seminiferous tubules are called interstitial spaces, which contain Leydig's cell. Reason: Leydig's cells synthesise and secrete testicular hormones called androgens.

Q. Read the following statements and find out the incorrect statement.

A. Each testicular lobule contains one to three highly coiled seminiferous tubules in which sperm are produced
B. Each seminiferous tubule is lined on its inside by two types of cells called Leydig cells and Sertoli cells
C. The region outside the seminiferous tubules called interstitial space, contain small blood vessels and male germ cells (spermatogonia) which lead to sperm formation
D. In testis immunologically component cells are also present
E. The seminiferous tubules of the testis open into the rete testis through vasa efferentia

Q. Assertion: Interstitial cell is present in the region outside the seminiferous tubule called interstitial space.

Reason: Leydig cells produce testosterone without the presence of luteinizing hormone (LH).

Q. Select the option which correctly fills up the blanks in the given two statements.

A. Each seminiferous tubule is lined on its inside by two types of cells called ____(i)____ & ____(ii)_____.
B. The seminiferous tubule opens into the ___(iii)_____ through ____(iv)______.

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What Are Flame Cells?

Standard XII Biology

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