General Knowledge - Biology - Discussion
Discussion Forum : Biology - Section 1 (Q.No. 8)
8.
Most fish do not sink in water because of the presence of
- swim bladder
- air bladder
- air sacs
- air in spongy bones
Discussion:
31 comments Page 1 of 4.
Reshma said:
6 months ago
Most fish do not sink in water due to the presence of a swim bladder, which is a gas-filled organ located in their abdominal cavity. The swim bladder allows fish to regulate their buoyancy by adjusting the amount of gas (usually oxygen) inside it.
How it Works:
When a fish wants to rise, it increases the gas in the swim bladder, making it more buoyant.
When it wants to sink, it releases gas, reducing buoyancy.
The swim bladder helps fish maintain their position in water without continuously swimming, saving energy.
How it Works:
When a fish wants to rise, it increases the gas in the swim bladder, making it more buoyant.
When it wants to sink, it releases gas, reducing buoyancy.
The swim bladder helps fish maintain their position in water without continuously swimming, saving energy.
Zdenek Micke said:
2 years ago
@All.
According to me, Option 1) I and II are correct is the correct answer.
Fish have a swim bladder, which is a gas-filled sac that helps them control their buoyancy and stay afloat at different water depths. The swim bladder adjusts the fish's buoyancy by changing its volume, which is regulated by the fish's gas gland and rete mirabile. The gas in the swim bladder is typically oxygen or nitrogen. The presence of a swim bladder helps the fish to avoid sinking in the water.
So, a statement I is correct.
Air bladder and air sacs are not present in fish. Air sacs are present in birds which help them in respiration. So, statements III and IV are incorrect.
According to me, Option 1) I and II are correct is the correct answer.
Fish have a swim bladder, which is a gas-filled sac that helps them control their buoyancy and stay afloat at different water depths. The swim bladder adjusts the fish's buoyancy by changing its volume, which is regulated by the fish's gas gland and rete mirabile. The gas in the swim bladder is typically oxygen or nitrogen. The presence of a swim bladder helps the fish to avoid sinking in the water.
So, a statement I is correct.
Air bladder and air sacs are not present in fish. Air sacs are present in birds which help them in respiration. So, statements III and IV are incorrect.
(4)
ANI said:
3 years ago
Fishes are able to swim with the aid of a swim bladder and fishes uses the air bladder for buoyancy in water.
Harshitha said:
3 years ago
What is a swim bladder and what is air bladder?
Explain it.
Explain it.
Adonias said:
4 years ago
Swim bladder help fishes to swim in water but air bladder helps to float because it contains air.
(1)
Purnima said:
7 years ago
Please explain the answer in detail.
Aaghar badshah said:
8 years ago
Please explain the answer.
Suhani said:
8 years ago
The swim bladder and air bladder are internal gas-filled organs that contribute to the ability of many bony fish (but not cartilaginous fish) to control their buoyancy, and thus to stay at their current water depth without sinking or having to waste energy in swimming.
(1)
Deepthi potu said:
8 years ago
Yeah, How this air bladder and swim bladder help fishes not to sink?
Chetan sharma said:
8 years ago
I think swim blade help them to swim continue in water and air blade also decrease their density that's why most of fishes don't sink in water.
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