ScienceCell

Review 2

What is a cell?A.where the nucleus gets its powerB.the basic unit that makes up living thingsC.thick fluid where the organelles areD.they assemble compounds called proteins

B. the basic unit that makes up living things

What are organelles?A.small structures that perform specific functions in a cellB.the thin covering that surrounds a cellC.the thick fluid where things are suspendedD.only small ball shaped things

A. small structures that perform specific functions in a cell

What is the nucleus?A.they assemble compounds called proteinsB.the basic unit that makes up living thingsC.thick fluid where the organelles areD.the part that directs the activities of a cell

D. the part that directs the activities of a cell

Which one is only in a plant?A.nucleusB.cell wallC.cell membraneD.cytoplasm

B. cell wall

What is a cell membrane?A.the rigid outer layer that helps it stand upB.the part that makes proteinsC.a flexible covering that allows some things in and some outD.sacs that store fluids

C. a flexible covering that allows some things in and some out

What is cytoplasm?A.ball shaped organellesB.thick fluid that holds organellesC.thick membranes around cellsD.they assemble compounds called proteins

B. thick fluid that holds organelles

These are tiny, not surrounded by membranes, and assemble compounds called proteins.A.lysosomesB.vacuolesC.nucleusD.ribosomes

D. ribosomes

This receives proteins, then processes them for shipment out of the cell. It is a system of membranes. It modifies proteins.A.endoplasmic reticulumB.golgi apparatusC.lysosomeD.vacuole

B. golgi apparatus

These ball shaped organelles help break down nutrients and old cell parts. They are common in plants but rare in animals.A.ribosomesB.vacuolesC.lysosomesD.golgi apparatus

C. lysosomes

These are membrane-bound sacs that are filled with fluid. Animal cells may have some small ones, but plant cells usually have one large one.A.ribosomesB.vacuolesC.cell wallD.golgi apparatus

B. vacuoles

Which are usually only found in plants?A.ribosomesB.nucleusC.chloroplastsD.mitochondria

C. chloroplasts

What is the job of chloroplasts?A.they are the power plants of cellsB.they process proteins for shipmentC.they are a system of tubes for materials to pass throughD.they use energy to make food through photosynthesis

D. they use energy to make food through photosynthesis

These large, peanut-shaped organelles are the power plants of cells. Sugars break apart in them making carbon dioxide, water, and energy.A.ribosomesB.nucleusC.chloroplastsD.mitochondria

D. mitochondria

This is a system of membranes and tubes that create passageways for materials to pass through. They can control levels of chemicals and break down toxic substances.A.endoplasmic reticulumB.golgi apparatusC.chloroplastsD.lysosomes

A. endoplasmic reticulum