CELL TYPES

A Grade 11 Biology student is reviewing the characteristics of epithelial tissues. She sees a slide showing a single layer of flat cells lining the alveoli. Which type of epithelial tissue is this?

• Simple Squamous Epithelium
• Stratified Squamous Epithelium
• Simple Cuboidal Epithelium
• Pseudostratified Columnar Epithelium

Which plant cell type is most directly involved in the transport of sugars produced during photosynthesis?

• Xylem Cells
• Phloem Cells
• Guard Cells
• Collenchyma Cells

Which connective tissue type stores fat and provides cushioning to organs?

• Reticular Tissue
• Areolar Tissue
• Adipose Tissue
• Dense Regular Tissue

In bone tissue, which cell type is responsible for breaking down old bone matrix during remodeling?

• Osteocytes
• Osteoblasts
• Osteoclasts
• Chondrocytes

During a laboratory observation, Marco notices plant cells with thick secondary cell walls containing lignin. Based on this structure, he concludes they provide rigid support. Which plant cell type did Marco likely observe?

• Parenchyma
• Collenchyma
• Sclerenchyma
• Guard Cells

If an animal’s blood has a significantly reduced number of neutrophils, what would be the most direct consequence?

• Slower clot formation after an injury
• Reduced ability to fight bacterial infections
• Inability to transport oxygen effectively
• Decrease in water retention within tissues

Why do guard cells in plant leaves change shape throughout the day?

• To protect the leaf from herbivores
• To regulate the opening and closing of stomata for gas exchange
• To transport water through the xylem
• To store glucose after photosynthesis

Peter, a Senior High School student at Aritao National High School, accidentally burns his hand. Which tissue type will be most responsible for replacing the damaged outer skin cells?

• Stratified Squamous Epithelium
• Smooth Muscle Tissue
• Adipose Tissue
• Nervous Tissue

Andrea is studying the role of xylem cells in plants during a drought. Which is the most likely effect on the plant if xylem transport is impaired?

• Starch storage in roots will increase
• Water supply to leaves will decrease
• Leaf guard cells will remain permanently open
• The plant will produce more flowers

During a blood smear examination, a technician identifies an unusually high number of eosinophils. This finding most likely suggests the patient is:

• Fighting a bacterial infection
• Having an allergic reaction or fighting parasites
• Suffering from anemia
• Undergoing bone tissue remodeling