Cellular Biology Quiz

Which type of tissue is responsible for transmitting electrical signals in the body?

• Epithelial

• Connective

• Nervous

• Muscle

What structure separates the inside of the cell from its environment?

• Cytoskeleton

• Endoplasmic reticulum

• Cell membrane

• Nucleus

Which of the following is NOT part of the extracellular matrix (ECM)?

• Collagen

• Elastin

• Proteoglycans

• Microtubules

What is the primary function of epithelial tissue?

• Contract and produce movement

• Support and connect other tissues

• Cover and protect body surfaces

• Transmit signals

What type of cell junction allows direct communication between adjacent cells?

• Tight junctions

• Desmosomes

• Hemidesmosomes

• Gap junctions

Which germ layer gives rise to bones and muscles?

• Ectoderm

• Mesoderm

• Endoderm

• Neural crest

Which organelle contains digestive enzymes to break down cellular waste?

• Mitochondrion

• Lysosome

• Peroxisome

• Nucleus

What type of muscle tissue is found in the walls of hollow organs, such as the stomach and intestines?

• Skeletal muscle

• Smooth muscle

• Cardiac muscle

• Voluntary muscle

What type of connective tissue stores fat?

• Cartilage

• Adipose tissue

• Dense connective tissue

• Areolar tissue

What is the main component of the extracellular matrix (ECM) that provides tensile strength to tissues?

• Elastin

• Collagen

• Keratin

• Actin