Cell Biology Quiz

What is one of the main reasons red blood cells need to be small in diameter?

• To store more oxygen

• To fit through narrow capillaries

• To increase their surface area

• To divide more rapidly

Which type of cell is known to have a diameter of approximately 120 µm?

• Neuron

• Red blood cell

• Human ovum

• Sperm cell

Why do cells need a high surface area to volume ratio?

• To store more nutrients

• To increase their size

• To maintain homeostasis

• To reduce energy consumption

What happens to the surface area to volume ratio as a cell grows?

• It increases

• It decreases

• It remains constant

• It becomes infinite

How do certain cells and tissues increase their surface area for material exchange?

• By becoming larger

• By forming microvilli

• By storing more lipids

• By reducing their volume

What is the primary function of a tissue in a multicellular organism?

• To transport materials around the body

• To perform a common function

• To differentiate into specialized cells

• To form the entire organism

Which type of stem cell can form any cell type, including extra-embryonic tissues?

• Pluripotent

• Multipotent

• Totipotent

• Unipotent

What is the key characteristic of stem cells that allows them to continuously divide and replicate?

• Potency

• Self-Renewal

• Differentiation

• Specialization

Which type of stem cell is capable of self-renewal but cannot differentiate?

• Totipotent

• Pluripotent

• Multipotent

• Unipotent

What controls the expression of genes within an early-stage embryo?

• Cell division

• Morphogen gradients

• Tissue interaction

• Organ formation