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Do protists have a distinct nucleus that is separated from the cytoplasm by the nuclear membrane?
Yes, protists have a distinct nucleus that is separated from the cytoplasm by a nuclear membrane. This feature distinguishes them from prokaryotic organisms, which lack a true nucleus. The nucleus of protists contains their genetic material and controls cellular activities.
How pseudopods are formed?
Pseudopods are formed by the extension and retraction of the cell membrane in certain unicellular organisms, such as amoebas. Actin filaments in the cytoskeleton provide the structural support for the formation of pseudopods by enabling the cell to change its shape. The movement of molecules and ions through the cell membrane also plays a role in the formation of pseudopods.
True or False.The cell membrane is formed by phospholipids with hydrophobic fatty acid tails facing outward to the cytoplasm and extracellular fluid and hydrophilic phosphate heads sandwiched between?
False. The cell membrane is actually formed by phospholipids with hydrophilic heads facing outward towards the extracellular fluid and cytoplasm, while the hydrophobic fatty acid tails are sandwiched in between.
Is it true or false that ribosomes are permeable to the nuclear membrane?
False. Ribosomes are not permeable to the nuclear membrane. They are synthesized in the nucleolus of the nucleus and then transported out through nuclear pores to the cytoplasm where they function in protein synthesis.
True or false Ribosomes differ from other organelles in that they are membrane bound?
False. Ribosomes are not membrane-bound organelles. They are small, complex structures responsible for protein synthesis within the cell. They can be found free-floating in the cytoplasm or attached to the endoplasmic reticulum.
How do funguslike protists move?
They move with flagella, cilia, or pseudopods.
Is it true that protists that can make their own food are offten called animal-like protists?
False. They are plant-like protists.
Cells have a support structure within the cytoplasm called the cytoplasm true or false?
true or false? cells have support structure within the cytoplasm called the cytoskeleton
Animal-like protists are producers?
false
Cytoplasm is found on the surface of a cell true or false?
false !
Is meiosis involves one division of the nucleus and cytoplasm?
False and why
Bacterial cells have membrane-bound organelles and chromosomes?
No. Bacteria are prokariotic and have no no membrane bound anything not even a nucleus everything is free floating in the cytoplasm.
