HARD
Earn 100
What are Protonephridia?
Important Questions on Excretory Products and Their Elimination
EASY
Nephridia help in excretion and osmoregulation in-
MEDIUM
Match the excretory organs listed under column I with the animals given under column II and select the correct option.
I (Excretory organs) |
II (Animals) |
||
|---|---|---|---|
| (a) | Nephridia | (i) | Hydra |
| (b) | Malpighian tubules | (ii) | Leech |
| (c) | Protonephridia | (iii) | Shark |
| (d) | Kidneys | (iv) | Roundworms |
| (v) | Cockroach |
EASY
Nephridia of earthworm are performing same functions as
EASY
Name the excretory organs in insects.
EASY
Flame cells of flatworms are used for:
MEDIUM
(ii) How many types of nephridia are found in earthworm based on their location?
EASY
Excretion in most Annelids take place by -
EASY
(i) What is the function of nephridia?
MEDIUM
Which one of the following statements is incorrect?
EASY
Parasitic flatworms have flame cells for excretion and osmoregulation.
MEDIUM
Name the excretory organs in earthworm.
EASY
Which one of the following statements is incorrect?
MEDIUM
Distinguish between the following:
(b) Septal nephridium and pharyngeal nephridium
EASY
Which one of the following pairs of items correctly belong to the category of organs mentioned against it?
MEDIUM
Which one of the following group of structures/organs has similar functions?
MEDIUM
Fill up the blank spaces in the table below by selecting the correct option.
| Phylum/Class | Excretory organ | Circulatory system | Respiratory organ |
|---|---|---|---|
| Arthropoda | A | B | Lungs/Gills/ Tracheal system |
| C | Nephridia | Closed | Skin |
| D | Metanephridia | Open | E |
| A | B | C | D | E | |
|---|---|---|---|---|---|
| (i) | Green gland | Closed | Mollusca | Annelida | Tracheal system |
| (ii) | Malpighian tubule |
Open | Annelida | Mollusca | Feather-like gills |
| (iii) | Antennary gland |
Open | Porifera | Amphibia | Lungs |
| (iv) | Nephridia | Closed | Mollusca | Annelida | Lungs |
MEDIUM
Name the excretory organ(s) in a cockroach.(Malpighian tubules/ Nephridia/ Spiracles)
EASY
Which one is the excretory organ in the following?
EASY
Nephridia are the excretory organs of an earthworm.
EASY
Match column I with column II and select the correct option from the codes given below.
| Column I | Column II | ||
| A. | Choanocytes | (i) | Platyhelminthes |
| B. | Cnidoblasts | (ii) | Ctenophora |
| C. | Flame cells | (iii) | Porifera |
| D. | Nephridia | (iv) | Coelenterata |
| E. | Comb plates | (v) | Annelida |
