AP BIOLOGY

ANIMAL PHYSIOLOGY

NERVOUS SYSTEM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following organisms have ameboid movement?
A
unicellular
B
insects
C
vertebrates
D
worm
Explanation: 

Detailed explanation-1: -Hint: Amoebae (e.g. Amoeba proteus) are found in this form of movement.

Detailed explanation-2: -Some examples of organisms that exhibit this type of locomotion are amoebae (such as Amoeba proteus and Naegleria gruberi, ) and slime molds, as well as some cells in humans such as leukocytes.

Detailed explanation-3: -Muscular movements: Muscle tissue found inside of the heart, digestive organs, and blood vessels serve to move substances throughout the body. Hence, An example of amoeboid movement is Leucocytes.

Detailed explanation-4: -An amoeba (/əˈmiːbə/; less commonly spelled ameba or amœba; plural am(o)ebas or am(o)ebae /əˈmiːbi/), often called an amoeboid, is a type of cell or unicellular organism with the ability to alter its shape, primarily by extending and retracting pseudopods.

Detailed explanation-5: -Cells like macrophages and leukocytes show amoeboid movement wherein pseudopodia are formed by cytoplasmic streaming. The cytoplasm is projected outwards giving a dragging or crawling movement to the cell and to organisms like amoeba. This is done by the cytoskeletal components like microfilaments. Q.

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