10 Sept Cell Theory

What are the three parts of the cell theory?

All living things are made of cells; cells are the basic unit of structure and function in living things; and all cells come from other cells.

What is a cell?

A cell is the basic unit of structure and function in living things.

What parts does a eukaryotic cell include?

A eukaryotic cell has a nucleus

Why were microscopes important to the development of cell theory?

Microscopes allowed scientists to see cells for the first time and study their structures.

How is a cell a system?

A cell is a system because its organelles have different jobs and work together to keep the cell alive.

What do plant and animal cells have in common?

Both are eukaryotic cells and contain a nucleus

What are some characteristics of animal cells?

Animal cells are usually rounder

What are some characteristics of plant cells?

Plant cells are usually rectangular and have a large central vacuole

What is the function of the nucleus?

The nucleus directs all of the cell's activities.

What is the function of the cytoplasm?

The cytoplasm fills the cell and suspends the organelles.

What is the function of the cell membrane?

The cell membrane controls which substances can enter or leave the cell.

What is the function of the cell wall?

The cell wall protects and supports the plant cell.

What is the function of chloroplasts?

Chloroplasts capture energy from sunlight and use it to produce food for the plant cell.

What is the function of lysosomes?

Lysosomes use enzymes to break down materials and act as the cell's clean-up crew.

What is the function of mitochondria?

Mitochondria are the powerhouse of the cell and release energy for the cell to use.

How do organelles contribute to the overall function of a cell?

Each organelle has a specific job and they work together to keep the cell alive and functioning properly.

What is an analogy for the nucleus?

The nucleus is like a principal because it directs activities just as a principal helps direct a school.

What is an analogy for the cell membrane?

The cell membrane is like a school door or security guard because it controls what enters and leaves.

What is an analogy for cytoplasm?

Cytoplasm is like the inside space of a school because it holds everything in place.

What is an analogy for mitochondria?

Mitochondria are like a power plant because they provide usable energy.

What is an analogy for lysosomes?

Lysosomes are like a janitorial crew because they break down and clean up waste.

What is an analogy for a cell wall?

A cell wall is like the walls of a building because it provides support and protection.

What is an analogy for chloroplasts?

Chloroplasts are like solar panels because they capture energy from sunlight.

What are the five levels of cellular organization from smallest to largest?

Cell; tissue; organ; organ system; organism.

What is the smallest level of cellular organization?

A cell.

What is a group of cells working together called?

A tissue.

What is a group of tissues working together called?

An organ.

What is a group of organs working together called?

An organ system.

What do all of the organ systems working together create?

An organism.

What is an example of the five levels of cellular organization in an animal?

Muscle cell; muscle tissue; heart; circulatory system; animal.

What is an example of the five levels of cellular organization in a plant?

Plant cell; plant tissue; leaf; shoot system; plant.