GK
GENERAL SCIENCE
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
Gas-filled floats that help hold algae upright in water.Connected to blades by the stipe.
|
|
Pneumatocysts
|
|
|
Blades
|
|
|
Marine Algae
|
|
|
Holdfast
|
Explanation:
Detailed explanation-1: -These hollow gas filled bladders are called pneumatocysts. Kelp blades also allow photosynthesis on both their top and bottom surfaces for maximum food production.
Detailed explanation-2: -In phycology, a pneumatocyst is a floating structure that contains gas found on brown seaweed. A seaweed’s thallus may have more than one. They provide buoyancy to lift the blades toward the surface, allowing them to receive more sunlight for photosynthesis.
Detailed explanation-3: -Holdfast: This anchors the seaweed to the substrate. Stipe (st-eye-p): This stem-like structure connects the blade to the holdfast. The stipe is very flexible which allows the seaweed to flex and bend with wave action.
There is 1 question to complete.