Q1: What is the basic unit of life?

• Nucleus

• Cell

• Atom

• Organ

Which of the following is NOT part of the cell theory?

• • All cells come from other cells.

• • All living things are made of cells.

• • Cells are made of atoms.

• • The cell is the basic unit of structure and function.

What is the main function of the cell membrane?

• • Produces energy

• • Makes proteins

• • Controls what goes in and out of the cell

• • Stores water

What role does the cytoplasm play in the cell?

• • Directs all activities

• • Provides structure

• • Allows movement and holds organelles

• • Makes food

What is the main function of ribosomes?

• DNA replication

• Protein synthesis

• Lipid synthesis

• Energy production

Where can ribosomes be found in a cell?

• Only in the nucleus

• Only attached to the ER

• Floating freely in the cytoplasm and on the ER

• Only on the plasma membrane

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Why is the nucleus important to the cell?

• • It helps the cell move

• • It stores waste

• • It controls cell activities and contains DNA

• • It makes energy

Which statement is TRUE about the endoplasmic reticulum?

• The smooth ER has ribosomes

• ER is not connected to the nucleus

• Rough ER helps in protein modification

• ER exists only in plant cells

The rough appearance of rough ER is due to:

• Lipid droplets

• Presence of mitochondria

• Attached ribosomes

• Folds in the membrane