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Types of Excretion

Consider the ...

Question

Consider the following statements
I. Flame cells are excretory structures in flatworms
II. Green glands are excretory organs in annelids.
III. Columns of Bertin are the conical projections of renal pelvis into renal medulla between the renal pyramids.

Which of the following statements are incorrect?

A

I and II

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B

II and III

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C

I and III

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D

I, II and III

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Solution

The correct option is B II and III
Options II and III are incorrect. Green glands are excretory organs in some Arthropods. The renal columns of Bertin are the part of cortex continued inside medulla between pyramids.

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Similar questions

Q. Consider the following statements and choose the correct option.
A. Flame cells are excretory structures in flatworms.
B. Green gland is excretory organs in annelids.
C. Columns of Bertini are the extensions of the renal cortex into the renal medulla between the renal pyramids.

Q. Consider the following statements
I. Flame cells are excretory structures in flatworms
II. Green glands are excretory organs in annelids
III. Columns of Bertini are the extensions of the renal cortex into the renal medulla between the renal pyramids.

Q. Which of the following statements are false?
(i) Outer cortex and inner medulla are the two zones in kidney.
(ii) Medulla is divided into few renal pyramids.
(iii) Pyramid projects into calyx.
(iv) Inward extension of cortex between the pyramids is called renal column of Bertini.

Q. Consider the following statements concerning flame cells of flatworms and identify the correct answer choice.

I. They help in osmoregulation and excretion.
II. Protonephridium has excretory pores.
III. Waste products are excreted with the help of cilia present on the cell lining.

Q. Pick the odd ones in each of the following groups and select the correct option.
(i) Renal pelvis, Medullary pyramid, Renal cortex, Renal papilla
(ii) Afferent arteriole, Henle's loop, Vasa recta, Efferent arteriole
(iii) Glomerular filtration, Antidiuretic hormone, Hypertonic urine, Collecting duct
(iv) Proximal convoluted tubule, Distal convoluted tubule, Henle's loop, Renal corpuscle

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