Nitrogenous waste is excreted in the form of pellet or paste by:
- Ornithorhynchus
- Salamandra
- Hippocampus
- Pavo
The Correct Option is D
Solution and Explanation
In biology, the excretion of nitrogenous wastes varies among different organisms. Birds typically excrete nitrogenous waste in the form of uric acid, which is less toxic and requires less water compared to ammonia or urea. This is observed in many birds, where the waste is expelled as a white paste or pellet.
Given the options, we need to determine which organism excretes nitrogenous waste as a pellet or paste:
- Ornithorhynchus: Commonly known as the platypus, a mammal that excretes urea.
- Salamandra: An amphibian that typically excretes ammonia.
- Hippocampus: Known as seahorses, can excrete nitrogenous waste as ammonia.
- Pavo: Known as the peafowl, a bird that excretes uric acid in the form of a paste or pellet.
Considering the above information, the correct answer is Pavo as it excretes nitrogenous waste in the form of pellet or paste.
Top Questions on excretory products and their elimination
- Which of the following is excretory material in birds?
- MHT CET - 2025
- Biology
- excretory products and their elimination
What is the primary function of Bowman’s capsule in nephron?
- MHT CET - 2025
- Biology
- excretory products and their elimination
- Match List I with List II
List I List II A Pons I Provides additional space for Neurons, regulates posture and balance. B Hypothalamus II Controls respiration and gastric secretions. C Medulla III Connects different regions of the brain. D Cerebellum IV Neurosecretory cells
Choose the correct answer from the options given below:- NEET (UG) - 2024
- Biology
- excretory products and their elimination
- Which disease is characterized by symptoms such as dehydration, excessive loss of water in urine, and absence of glucose in the urine?
- MHT CET - 2024
- Biology
- excretory products and their elimination
- Which of the following statements best describes the relationship between the hormones ANF and Angiotensin 2 in terms of their physiological effects on the body?
- MHT CET - 2024
- Biology
- excretory products and their elimination
Questions Asked in NEET exam
- Consider the following:
A. The reductive division for human female gametogenesis starts earlier than that of male gametogenesis.
B. The gap between the first meiotic division and the second meiotic division is much shorter for males compared to females.
C. The first polar body is associated with the formation of the primary oocyte.
D. Luteinizing Hormone (LH) surge leads to disintegration of the endometrium and onset of menstrual bleeding.- NEET (UG) - 2025
- Human Reproduction
Consider a water tank shown in the figure. It has one wall at \(x = L\) and can be taken to be very wide in the z direction. When filled with a liquid of surface tension \(S\) and density \( \rho \), the liquid surface makes angle \( \theta_0 \) (\( \theta_0 < < 1 \)) with the x-axis at \(x = L\). If \(y(x)\) is the height of the surface then the equation for \(y(x)\) is: (take \(g\) as the acceleration due to gravity)
- NEET (UG) - 2025
- Surface tension
- In some appropriate units, time (t) and position (x) relation of a moving particle is given by \(t = \alpha x^2 + \beta x\). The acceleration of the particle is :
- NEET (UG) - 2025
- Kinematic equations for uniformly accelerated motion
- Given below are two statements:
Statement I: Fig fruit is a non-vegetarian fruit as it has enclosed fig wasps in it.
Statement II: Fig wasp and fig tree exhibit a mutual relationship as the fig wasp completes its life cycle in the fig fruit and the fig fruit gets pollinated by the fig wasp. - Read the following statements on plant growth and development:
A. Parthenocarpy can be induced by auxins. B. Plant growth regulators can be involved in promotion as well as inhibition of growth. C. Dedifferentiation is a pre-requisite for re-differentiation. D. Abscisic acid is a plant growth promoter. E. Apical dominance promotes the growth of lateral buds.- NEET (UG) - 2025
- Plant Physiology
Concepts Used:
Excretory products and their elimination
The physiological process of the elimination of metabolic waste from the body is called excretion. The excretory products comprise amino acids, carbon dioxide, urea, uric acid, water, and ammonia. Some of the Molluscs and Echinoderms excrete waste products from the body in the form of amino acids. Ammonia is the foremost excretory product in animals, it is derived from the proteins exists in the food we eat.
Excretory Products in Different Organisms:
Read More: Excretion in Human Beings