revision 1st year

Which organelle protects cells?

• nucleus

• cytoplasm

• cell membrane

• ribosomes

the jelly like substance in the plant cell.

• cytoplasm
• choroplast
• vacuole
• nucleus

Which part of the cell contains DNA?

• The cell wall
• The mitochondria
• The Vacuoles
• The Nucleus

Rigid layer surrounding a plant cell

• Cell Membrane

• Cytosplasm

• Cell Wall

• Chloroplast

• Vacuole

Contains a cell wall, chloroplasts, and one large vacuole.

• Animal Cell

• Plant Cell

• Bacteria Cell

Controls the activities of the cell

• Nucleolus

• Mitochondria

• Nucleus

• Endoplasmic Reticulum

A microscope is an instrument that.

• makes faraway objects look closer.
• makes small objects appear larger.
• decreases the size of small objects.
• increases the size of small objects.

If the eyepiece of your scope has a power of 10, and the selected objective lens has a power of 20,what is the total magnification?

• 20x
• 30x
• 200x
• 2000x

If your teacher asks you to move a microscope to table, how do you carry it?

• by the body tube and the eyepiece
• with one hand
• one hand on the arm and the other under the base
• with one hand on the base and the other on the eyepiece.

What is part 1?

• eye piece
• body tube
• arm
• coarse adjust