Question

1. a busy city is similar to a cell. both a city and a cell are made up of many important parts that work together as a whole. what could you find in a city that has a similar function to the mitochondria in a cell? a. a power plant b. a water tower c. a traffic signal d. a street sweeper
2. mark looks at an unknown cell under a microscope. what structure could he observe to help him identify whether the cell came from a plant? a. nucleus b. cell wall c. cytoplasm

Explanation:

Question 8

Mitochondria in a cell are responsible for producing energy (ATP) through cellular respiration, acting as the cell's "powerhouse." A power plant in a city generates electricity or energy to power the city, so it has a similar function to mitochondria. A water tower stores water, a traffic signal controls traffic flow, and a street sweeper cleans streets—none of these produce energy like mitochondria or a power plant.

Plant cells have a cell wall (a rigid structure outside the cell membrane) that provides support and shape, while animal cells do not. The nucleus is present in both plant and animal cells, and cytoplasm is also in both. So observing a cell wall would indicate the cell is from a plant.

Answer:

A. a power plant

Question 9