The parts and their jobs
Before you read
Test yourself first: 5 questions
Question 1 of 5
The jelly-like fluid that fills a cell and holds the organelles is the:
Answer: B. Cytoplasm is the gel-like substance where the organelles are suspended and many reactions occur.
Question 2 of 5
The tiny structures inside a cell that perform specific jobs are called:
Answer: B. Organelles (like the nucleus and mitochondria) are specialized structures within a cell.
Question 3 of 5
Which organelle contains enzymes that break down waste and worn-out cell parts?
Answer: B. Lysosomes contain digestive enzymes that break down waste, debris, and damaged organelles.
Question 4 of 5
Plant cells have a rigid outer structure that animal cells lack, called the:
Answer: B. Plant cells have a cell wall (of cellulose) for support; animal cells have only a cell membrane.
Question 5 of 5
Which structure is found in plant cells but NOT in animal cells?
Answer: B. Plant cells have a rigid cell wall (and chloroplasts) that animal cells lack.
Keep the streak going with more questions like these, each with a full rationale.
