THE CELLOnline version Cell Structures and their functions by Sylvester Chacha 1 Which of the following is the basic unit of life? a Atom b Molecule c Cell d Tissue 2 Which organelle is known as the powerhouse of the cell? a Nucleus b Ribosome c Mitochondrion d Chroloplast 3 What structure controls the activities of the cell? a Cytoplasm b Nucleus c Cell Membrane d Endoplasmic Reticulum 4 Which of the following is found in plant cells but not in animal cells? a Mitochondria b Ribosomes c Chloroplasts d Lysosomes 5 What is the jelly-like substance inside the cell where organelles are suspended? a Nucleus b Cytoplasm c Cell wall d Cell membrane 6 The cell membrane is selectively permeable. a True b False 7 Ribosomes are responsible for protein synthesis. a True b False 8 The cell wall is present in both plant and animal cells. a True b False 9 Chloroplasts are involved in photosynthesis a True b False 10 The nucleus contains the cell's genetic material. a True b False