Cell Structure and Function Concepts

Cells are the basic units of life, with all cells having a membrane, cytoplasm, and DNA. Cells are categorized into eukaryotic, which have a nucleus and organelles, and prokaryotic, which lack these structures. Organelles perform specific functions, such as the nucleus controlling cell activities and mitochondria generating energy. Plant cells have chloroplasts for photosynthesis and a cell wall for support. Unique structures like cilia and flagella aid in movement. Eukaryotic cells are complex, while prokaryotic cells are simpler, unicellular organisms.

What is a common feature of all cells?

• They all have chloroplasts.

• They all have a cell wall.

• They all have a cell membrane.

• They all have a nucleus.

Which type of cell lacks a nucleus?

• Animal cells

• Prokaryotic cells

• Eukaryotic cells

• Plant cells

What is the primary function of the nucleus?

• To transport materials

• To store genetic material

• To synthesize proteins

• To produce energy

What is the role of ribosomes in a cell?

• To capture sunlight

• To synthesize proteins

• To break down waste

• To store water

What is the function of the Golgi apparatus?

• To produce ATP

• To modify and package proteins

• To store genetic material

• To synthesize proteins

Which organelle is known as the powerhouse of the cell?

• Chloroplast

• Mitochondrion

• Lysosome

• Nucleus

What is the primary function of chloroplasts?

• To perform photosynthesis

• To transport proteins

• To store water

• To break down waste

What structure helps maintain the shape of a cell?

• Cytoskeleton

• Cell wall

• Vacuole

• Chloroplast

What is the function of cilia in human cells?

• To capture sunlight

• To move the cell

• To trap inhaled particles

• To store nutrients

Which type of cell is always unicellular?

• Eukaryotic cells

• Prokaryotic cells

• Animal cells

• Plant cells