cells

• What are cells referred to as the basic building blocks of life?

  The smallest unit of life
• Animals and plants are multicellular organisms, meaning they contain loads of cells
• When animal cells divide, they create whole new organisms.

  False
• What type of cells make up human skin and blood?

  Skin cells and blood cells
• An adult human is estimated to contain over 40 trillion cells
• What is the primary function of the cell membrane in both animal and plant cells?

  Controls substance entry and exit
• The nucleus of a cell contains the genetic material and controls cell activities.
• What is the gel-like substance that fills the cell and where chemical reactions occur?

  Cytoplasm
• Mitochondria provide the cell with energy through a process called aerobic respiration
• Match the subcellular structure with its function:

  Ribosome ↔️ Protein synthesis

  Cell membrane ↔️ Controls substance entry

  Mitochondrion ↔️ Energy production

  Nucleus ↔️ Controls cell activities
• What material is the cell wall of plant cells made of?

  Cellulose
• The permanent vacuole in plant cells contains cell sap
• What process occurs in chloroplasts to produce glucose?

  Photosynthesis
• Chlorophyll, found in chloroplasts, is responsible for the green color of plant leaves
• Match the bacterial cell structure with its function:

  Flagellum ↔️ Movement

  Plasmid ↔️ Extra genes

  Ribosome ↔️ Protein synthesis

  Cell wall ↔️ Support and structure
• Bacterial cells do not have a nucleus.
• What is the single circular strand of DNA in bacterial cells called?

  Circular chromosome
• What does the nucleus contain?

  Genetic material
• The genetic material in the nucleus controls the activities of the cell
• What does the cell membrane control?

  Entry and exit
• Most chemical reactions in the cell occur in the cytoplasm.
• What is the function of ribosomes?

  Protein synthesis
• Respiration in the cell takes place in the mitochondria
• What does respiration in mitochondria transfer to the cell?

  Energy