Small subunit and large subunit

Ribosomes

Carry out protein synthesis

Ribosomes

Continuous with the nuclear envelope, with ribosomes studding its surface

Rough Endoplasmic Reticulum

Site of protein synthesis, distributes transport vesicles

Rough Endoplasmic Reticulum

Continuous with the nuclear envelope, lacks ribosomes

Smooth Endoplasmic Reticulum

Synthesizes lipids, detoxifies poison, stores calcium

Smooth Endoplasmic Reticulum

Consists of flattened membranous sacs called cisternae. Cis and trans face

Golgi Apparatus

Modifies, sorts and packages materials into transport vesicles

Golgi Apparatus

A membranous sac of digestive enzymes

Lysosomes

Use enzymes to recycle the cell’s own organelles, food

Lysosomes

Types of vacuoles?

Food, Contractile, Central

Membranous sac

Food Vacuoles

Contain food

Food Vacuoles

Membranous sac(protists)

Contractile Vacuoles

Pump excess water out of cells

Contractile Vacuoles

Membranous sac (plants)

Central Vacuoles

Hold organic compounds and water

Central Vacuoles

Smooth outer membrane, cristae (inner membrane foldings), intermembrane space, matrix contains free ribosomes

Mitochondria

Sites of cellular respiration, generates ATP

Mitochondria

Only present in plant cells, thylakoids (membranous sacs) stacked to form granum, stroma, green in color, contain chlorophyll

Chloroplasts

Function in photosynthesis

Chloroplasts

Organelle with single membrane?

Peroxisomes

Produce hydrogen peroxide and convert it to water

Peroxisomes

A network of fibers extending throughout the cytoplasm. Three types: microfilaments, intermediate filaments and microtubules

Cytoskeleton

Organizes the cell’s structure, shape, and activities, anchoring many organelles

Cytoskeleton

Made of actin subunit, two intertwined strands of actin
Diameter: 7nm

Microfilaments

Maintenance of cell shape, changes in cell shape, muscle contraction, cytoplasmic streaming, cell motility, cell division

Microfilaments

Fibrous proteins supercoiled into thicker cables. Diameter: 8 – 12 nm, contains proteins from one of proteins from keratin family

Intermediate filaments

Maintenance of cell shape, anchorage of nucleus and certain other organelles , formation of nuclear lamina

Intermediate filaments

Diameters in a middle range, hollow tubes; wall consisting of 13 columns of tubulin molecules. Diameter: 25 nm with 15nm lumen

Microtubules

Maintenance of cell shape, cell motility, chromosome movement in cell division, organelle movement

Microtubules

Contains nuclear envelope, double membrane, nuclear pore, nuclear lamina, and nucleolus, and nucleoplasm

Nucleus

Contains DNA (hereditary material)

Nucleus