Lesson 2 Quiz: The Human Immune System (Organs, Cells, and Antibodies)

Bacterial restriction endonucleases recognize specific nucleotide sequences called recognition sites, and are characterized by:

The relative density (specific gravity) of a substance is defined as:

The enzyme found in the apical body (Acrosome) of the sperm that helps it penetrate the compact envelope of the egg is:

Pascal's principle states that when pressure is applied to an enclosed, incompressible fluid, it is transmitted:

DNA polymerase always adds new nucleotides in a specific direction:

Okazaki Fragments formed on the die strip (5' to 3') During DNA replication they are joined by an enzyme:

Cells that carry CD8 receptors and directly eliminate cancer cells, virus-infected cells, and transplanted organs are:

The indicator that exhibits a yellow color in acidic medium, blue in alkaline medium, and green in neutral medium is:

The protein secreted by cytotoxic T cells (Tc) that creates holes in the plasma membrane of the target cell is:

In prokaryotic cells (such as bacteria), a single circular DNA molecule attaches to the plasma membrane at:

The direct cause of myxedema in an adult is:

The surface immune receptor characteristic of T helper cells (Th) that enables them to recognize the antigen complex with the MHC protein is:

When dry chlorine gas is passed over red-hot iron filings, iron(III) chloride (FeCl3) is exclusively formed rather than iron(II) chloride because:

The cells that suppress and inhibit the immune response after eliminating the microbe and secrete lymphokine proteins are:

In Griffith's bacterial transformation experiment, mice died when they were injected with:

Identical (monozygotic) twins arise genetically as a result of:

Complements are a group of plasma proteins that activate when an antibody binds to an antigen and work to:

The ion directly responsible for the explosion of synaptic vesicles and the release of acetylcholine in the neuromuscular synapse cleft is:

The chemical compound secreted by mast cells and basal white blood cells that is responsible for the widening of blood vessels and symptoms of inflammation is: