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Class 4 bacteriocins are unique because

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שאלה #105401

		They are produced by Archaea
		They are extremely small proteins
done		They are in a complex with a non-protein
		The complexity of their 3D structure

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Tol and Ton are

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שאלה #105402

		Building blocks of the peptidoglycan
		Outer membrane proteins
		A unique feature of gram-positive bacteria
done		Energy transferring systems

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Colicin killing mechanism is usually

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שאלה #105404

		Lysis of the target cell or a slow death by starvation
done		Either poring the inner membrane or nuclease activity
		Digestion of the peptidoglycan or blockage of its production process
		Interference with the activity of the Ton and Tol systems

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How many secretion systems were identified in bacteria?

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שאלה #105405

		6
done		9
		12
		15

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Which secretion system is mainly antagonistic?

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שאלה #105407

		T7SS
		T8SS
		T4SS
done		T6SS

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What's true about T6SS?

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שאלה #105409

		It uses the sec system to bypass the inner membrane
		It uses the Tat system to bypass the inner membrane
done		It's a one step system
		It's found only in gram-positive bacteria

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T4SS is used for

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שאלה #105412

		Transferring protein cargo between cells
		Transferring DNA cargo between cells
		Transferring killing proteins between cells
mood		All true
		All false

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CDIs penetrate cells

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שאלה #105413

		By poring the cellular envelope
done		Via protein-protein interactions
		By lysing the peptidoglycan layer
		By interactions with lipid II

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Contact dependent inhibition (CDI)

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שאלה #105414

done		Is more studied in gram-negative than gram-positive bacteria
		Is more studied in gram-positive than gram-negative bacteria
		Is very rare in the bacterial kingdom
		Has evolved instead of bacteriocins in several bacterial species

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Contact dependent antagonism is so wide spread because

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שאלה #105415

		Bacteria need to make sure that no archaea is settled next to it
		It allows gram-positive bacteria to deliver essential nutrients
		It allows gram-negative bacteria to deliver essential nutrients
done		It is very important for bacteria to control their immediate neighbors

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