biology homeostasis, biology homeostasis quiz, biology homeostasis exam questions, define homeostasis, types of homeostasis.
In biology, homeostasis refers to the maintenance of internal stability in an organism under external conditions. It is based on regulatory mechanisms that ensure that conditions such as temperature, pH, and nutrient levels are within a narrow range that is conducive to life. Regulatory and feedback mechanisms are two of the most important types of homeostasis. Visit Nokryan.com to learn more about homeostasis, as well as related concepts.
1. Cartilaginous fishes retain trimethylamine oxide for protection against ?
- Ammonia
- Uric acid
- Cholesterol
- Ureacorrect
2. The mainterance of internal temperature of body within a tolerable range is termed as ?
- Thermostat
- Thermoregulationcorrect
- Osmoregulation
- Pyrolysis
3. Some desert mammals do survive without drinking water such as ?
- Kangaroo ratcorrect
- Grizzly bears
- Camel
- Lemmings
4. There are three components for the control system in a living organism to maintain homeostatic balance which are receptors control center and ?
- Coordinator
- Effectorcorrect
- Impulse
- Regulator
5. Which of the following plant is not a mesophyte ?
- Rose
- Brassica
- Cactuscorrect
- Mango
6. A more concentrated extracellular environment than a cell is termed as ?
- Hypertoniccorrect
- Hypotonic
- Peritonic
- Isotonic
7. Plants which are characterized by having adaptations of small and thick leaves to limit water loss and their stems are photosynthetic are called ?
- Halophytes
- Sammophytes
- Mesophytes
- Xerophytescorrect
8. Homeostasis keeps the internal fluctuations in a narrow range with various control systems compared to ?
- Wider external fluctuationscorrect
- Narrow external fluctuations
- Moderate external fluctuations
- None of these
9. The regulation of amount of water and solutes in the body is termed as ?
- Osmoregulationcorrect
- Thermoregulation
- All of these
- Homeostasis
10. Most cartilaginous fishes possess salt excreting organs known as ?
- Rectal glandscorrect
- Adrenal glands
- Thyroid glands
- Pituitart glands
11. Xerophytes have the adaptations for reduced rate of ?
- Transpirationcorrect
- Growth
- Absorption
- Translocation
12. The fishes which are isotonic to the surrounding sea water are the ?
- Hag fishescorrect
- Lung fishes
- Bony fishes
- Cartilaginous fishes
13. The fishes which drink large amount of sea water and excrete concentrated urine are the ?
- Jawless fishes
- Lobe-finned fishes
- Cartilaginous fishes
- Bony fishescorrect
14. In living system there is a set point in temperature regulated or ?
- Endothermic animalscorrect
- Heterothermic animals
- Ectothermic animals
- Poikilothermic animals
15. Homeostasis is the central requirement in the maintenance of ?
- Organismcorrect
- Species
- All of above
- Ecosystem
16. The animals which do not require actively to adjust their internal osmotic state are known as ?
- Osmoregulators
- Thermoregulators
- Excretophores
- Osmoconformerscorrect
17. Which of the following is the main contributing organ in plants for the elimination of wastes also called as an excretophore ?
- Fruit
- Root
- Leavescorrect
- Stem
18. Plants growing under moderate conditions of the environment are known as ?
- Mesophytescorrect
- Sciophytes
- Xerophytes
- Hydrophytes
19. Fresh water protozoa amoeba and paramecium pump out excess water by structures ?
- Contractile vacuolescorrect
- Protonephridia
- Nephrons
- Nephridia
20. Which of the following have adapted successfully to terrestrial mode of life ?
- Arthropods and Birds
- Arthropods and Mammals
- Arthropods and Vertebratescorrect
- Arthropods and Reptiles
21. Detection of chage and signalling for effectors response to control system is ?
- All of these
- Reciprocal mechanism
- Face back mechanismcorrect
- Negative feedback mechanism
22. The protection of internal environment from the harms of fluctuations in external environment is called as ?
- Homeostasiscorrect
- Excretion
- Thermoregulation
- Osmoregulation
23. Hypotonic environment osmotically causes entry of water into the cell and renders the cell solutions ?
- Dilutedcorrect
- Isotonic
- Disturbed
- Concentrated
24. The environment where animals produce large volumes of diluted urine is the ?
- Isotonic aquatic
- Terrestrial
- Hypertonic aquatic
- Hypotonic aquaticcorrect
25. Which of the following has enabled the animals and plants to distribute themselves in wide range of habitats ?
- All of these
- Thermoregulation
- Excretion
- Osmoregulationcorrect