L.S.1.3 - Organelles

What would most likely happen if the nucleus failed to make ribosomes?

• Protein synthesis would stop.

• The cell membrane would harden.

• Vacuoles would fail to retain water.

• The cytoplasm would thicken.

Which correctly pairs a function of DNA with the location where it occurs in the cell?

• Transcription occurs in the ribosome.

• Mutation repair occurs in the cytosol.

• DNA replication occurs in the nucleus.

• Translation occurs in the mitochondria.

What is the function of ribosomes?

• to provide energy for cellular respiration

• to speed up chemical reactions

• to transport molecules

• to synthesize proteins

Which cells contain a rigid cell wall?

• heart cells

• skin cells

• amoebas

• bacteria

What organelle in a plant cell generates the ATP energy the plant uses to grow?

• chloroplast

• vacuole

• mitochondrion

• ribosome

What is the function of chloroplasts?

• Chloroplasts chemical energy into light energy for immediate use in the cell.

• Chloroplasts convert light energy into chemical energy for immediate use in the cell.

• Chloroplasts convert chemical energy into light energy for later use in the cell.

• Chloroplasts convert light energy into chemical energy for later use in the cell.

How is the structure of a ribosome best described?

• a folded inner membrane surrounded by a lipid bilayer

• a folded protein with a uniquely shaped active site

• a lipid bilayer with proteins imbedded in it

• two subunits made of proteins and rRNA

Which cell organelle is correctly paired with its function?

• vacuole—synthesizes proteins

• mitochondrion—conducts photosynthesis

• chloroplast—conducts cellular respiration

• nucleus—directs cellular activities

Which organelle generates ATP energy for the plasma membrane to move substances across the plasma membrane by active transport?

• vacuole

• nucleus

• ribosome

• mitochondrion

Which organelle is most responsible for maintaining water pressure within a single-celled organism?

• contractile vacuole

• eyespot

• flagellum

• pseudopodium