Cells and Large Molecules Worksheet (Grade 8)

Which statements describe principles of cell theory? Select all that apply.

• All living things are made up of one or more cells

• Cells are the most basic unit of structure and function in living things

• All cells are created by pre-existing cells

• Cells arise spontaneously from non-living matter

Which type of cell contains its genetic material within a nucleus?

• Eukaryotic cell

• Prokaryotic cell

• Virus

• Prion

Which example is correctly matched to its cell type?

• Yeast — eukaryotic

• Salmonella — eukaryotic

• Bacteria — eukaryotic

• Thrush — prokaryotic

Which organelle primarily controls the passage of substances into and out of the cell and presents antigens on its surface?

• Cell-surface membrane

• Nucleus

• Mitochondrion

• Ribosome

Which organelle contains chromosomes?

• Nucleus

• Golgi apparatus

• Lysosome

• Centrioles

Which organelle is responsible for respiration that produces adenosine triphosphate (ATP)?

• Mitochondrion

• Rough endoplasmic reticulum

• Ribosome

• Lysosome

Which organelle is the main site of protein synthesis (translation)?

• Ribosome

• Smooth endoplasmic reticulum

• Golgi vesicle

• Centrioles

Which statement best describes the roles of the rough and smooth endoplasmic reticulum?

• Rough ER synthesizes and packages proteins; smooth ER synthesizes and stores lipids

• Rough ER stores DNA; smooth ER generates ATP

• Rough ER digests worn-out organelles; smooth ER packages proteins for export

• Rough ER separates chromosomes; smooth ER forms the nuclear envelope

Which organelle packages proteins into vesicles for transport?

• Golgi apparatus

• Nucleus

• Mitochondrion

• Cell-surface membrane

Which structure helps separate chromosomes during cell division?

• Centrioles

• Lysosomes

• Ribosomes

• Golgi vesicles