General Biology I - Summative Test

Which of the following statements is TRUE about cell modification?

• Cell modification is for animal cell only.

• Cell modifications are for plant cell only

• Cell modifications are present to every kind of cell.

• Modifications acquired by cells to carry out their specialized functions.

Which type of cell modification primarily functions for secretion, absorption and movement?

• Apical modification

• Basal modification

• Dorsal modification

• Lateral modification

Which type of cell modification is consists of protein complexes which controls paracellular transport, but induce connectivity between adjacent epithelial cells?

• Apical modification

• Basal modification

• Dorsal modification

• Lateral modification

Which of the following is NOT an example of lateral cell modification structure?

• Adherens Junction

• Desmosomes Junction

• Gap Junction

• Tight Junction

Which among the following specialized structures of a cell in bacteria and some animal cell help them to move?

• Extracellular matrix

• Cilia and Flagella

• Pseudopods

• Villi and Microvilli

Which among the following specialized structures is primarily consist of actin filaments and may also contain microtubules and intermediate filaments that are used for motility and ingestion.

• Extracellular matrix

• Plasmodesmata

• Pseudopods

• Villi and Microvilli

Which of the following is the major component of extracellular matrix in animal cells?

• Cellulose

• Fibronectin

• Integrins

• Protein Collagen

Which of the following types of lateral junctions allows various molecules, ions and electrical impulses to directly pass through a regulated gate between cells?

• Adherens Junction

• Desmosomes Junction

• Gap Junction

• Tight Junction

A patient presents with chronic digestive issues, including malabsorption and nutrient deficiency. Upon biopsy of the small intestine, the doctor finds that the surface area of the intestinal lining is significantly reduced. Which type of cell modification is most likely impaired?

• Desmosomes

• Hemidesmosomes

• Microvilli

• Tight Junctions

A scientist observes that kidney epithelial cells are allowing substances to pass through spaces between them, leading to improper filtration of blood. Which cell modification is most likely malfunctioning?

• Cilia

• Basal Lamina

• Microvilli

• Tight Junctions