Cells & Body Systems: Further Practice
Specialized cells, osmosis, connective tissue, and the body systems not yet covered.
8 questions, free, marked as you go with a worked explanation on every one.
What this covers
- cells and body systems
The questions
- Which body system coordinates responses to stimuli using electrical signals travelling along specialized cells?
- A red blood cell has no nucleus and a flattened, disc-like shape. Which best explains why this shape suits its function?
- A cell sits in a solution with fewer dissolved particles than inside the cell, so water moves into the cell by osmosis. If the cell's volume starts at 40 cubic micrometres and increases by 15%, what is its new volume, in cubic micrometres?
- Which structure attaches a muscle to a bone, transferring the muscle's pull to move the skeleton?
- Use the table below, listing what each organ's main job is. Which organ filters waste out of the blood and produces urine?
- The bar graph below shows resting heart rate for four students, in beats per minute. How many more beats per minute does the highest resting heart rate have than the lowest?
- Which pair correctly matches a blood vessel type with its role?
- A single skin cell is about 30 micrometres across. About how many of these cells would fit side by side across a fingernail 15 millimetres wide? (1 millimetre = 1000 micrometres.)