Bio

Red Blood Cells (Erythrocytes)

Carry oxygen and carbon dioxide in the blood; have a biconcave shape and lack a nucleus.

White Blood Cells (Leukocytes)

Defend the body against pathogens and produce antibodies; have an irregular shape and contain a nucleus.

Nerve Cells (Neurons)

Transmit electrical signals throughout the body; characterized by long axons and dendrites.

Muscle Cells (Myocytes)

Enable movement by contracting and relaxing; have long elastic fibers rich in mitochondria.

Sperm Cells

Fertilize the egg during reproduction; have a flagellum for mobility and a streamlined shape.

Egg Cells (Ovum)

Provide nutrients and genetic material during reproduction; large and spherical for nutrient storage.

Root Hair Cells (Plants)

Absorb water and nutrients from the soil; have long thin extensions to increase surface area.

Xylem Cells (Plants)

Transport water and minerals from roots to leaves; possess hollow tubes with lignin for strength.

Phloem Cells (Plants)

Transport sugars and nutrients throughout the plant; contain sieve plates and companion cells.

Ciliated Epithelial Cells

Move mucus and trapped particles out of the respiratory tract; have cilia on their surface.

Fat Cells (Adipocytes)

Store energy in the form of fat and provide insulation; large round cells with a fat droplet.

Guard Cells (Plants)

Regulate gas exchange by opening and closing stomata; kidney-shaped with chloroplasts.

Photoreceptor Cells (Rods and Cones)

Convert light into electrical signals for vision; rods for low light and cones for color detection.

Function of Red Blood Cells

Transport oxygen and carbon dioxide.

Function of White Blood Cells

Defense against pathogens and production of antibodies.

Function of Nerve Cells

Transmit electrical impulses.

Function of Muscle Cells

Enable movement through contraction and relaxation.

Function of Sperm Cells

Fertilize the egg.

Function of Egg Cells

Provide nutrients and genetic material.

Function of Root Hair Cells

Absorb water and nutrients.

Function of Xylem Cells

Transport water and minerals.

Function of Phloem Cells

Transport sugars and nutrients.