PRE TEST IN BIOTECHNOLOGY

All cells contain which of the following?

• Chloroplast

• Plasma membrane

• Nucleus

• Centrosome

Plant cells have all of the following except____.

• Cell wall

• Nucleus

• Chloroplast

• Centrioles

What has the Rough ER attached to it?

• Nucleolus

• Golgi apparatus

• Ribosomes

• Chromosomes

The thin, flexible barrier around a cell is called the____.

• Plasma membrane

• Cell wall

• Nuclear envelope

• Cytoplasm

Which of the following is the function of the cytoskeleton?

• Helps a cell keep its shape

• Contains DNA

• Surrounds the cell

• Helps make proteins

Which organelle is the "packing center" for the cell?

• Endoplasmic reticulum

• Nucleus

• Lysosome

• Golgi apparatus

Which of the following is a saclike structure that stores water?

• Golgi apparatus

• Nucleus

• Vacuole

• Endoplasmic reticulum

Which of the following is the "powerhouse" of the cell that breaks down food into energy that the cell needs?

• Mitochondria

• Vacuole

• Endoplasmic reticulum

• Chloroplast

Which of the following is NOT found in prokaryotes?

• DNA or the genetic material

• A cell membrane

• A nucleus

• Cytoplasm

Eukaryotic cells contain____.

• only ribosomes

• Membrane bound organelles

• DNA floating in cytoplasm

• only cytoplasm