Electrical Circuits and Magnetism Quiz

The flow of electric charge through a circuit.

The force that pushes electric current through a circuit.

A temporary magnet created by electric currents flowing through a coil of wire.

The process by which plants convert light energy into chemical energy.

The process of releasing energy from food by combining it with oxygen.

The basic unit of life, a small structure that makes up all living organisms.

The jelly-like substance within a cell that contains many important structures and chemicals.

A thin barrier that controls what enters and leaves the cell.

A round structure within a cell that contains genetic material (DNA), which controls the cell's functions.

Tiny structures within cells that are responsible for producing energy.

A rigid outer layer that surrounds plant cells, providing support and protection.

Large fluid-filled sacs within plant cells that store water, nutrients, and waste products.

Green structures within plant cells that contain chlorophyll, used to capture light energy for photosynthesis.

Plant cells can have different shapes and sizes, depending on their function within the plant.

The cell wall provides strength and support to the plant cell, allowing it to withstand internal pressure and maintain its shape.

Chloroplasts absorb light energy and use it to convert CO2 and water into glucose and oxygen during photosynthesis.

Vacuoles store water, nutrients, and waste products, helping to maintain the cell's turgor pressure and regulate its internal environment.

The cell membrane controls the movement of substances in and out of the cell, ensuring that only necessary nutrients and molecules enter and waste products leave.

The nucleus contains DNA, which carries the genetic instructions for the cell's growth, development, and function.

Mitochondria are responsible for cellular respiration, where food is broken down with oxygen to produce energy (ATP).

Plant cells have a cell wall, chloroplasts, and large vacuoles, while animal cells lack these structures.

Root cells are adapted for absorbing water and nutrients from the soil, while leaf cells are adapted for photosynthesis. Both are essential for the plant to survive.

Plant cells are living, just like animal cells, and they can have different shapes and structures depending on their function. We can learn about them by looking at diagrams, models, and even microscopes!

The cell membrane acts as a filter, letting in nutrients and molecules that the cell needs and keeping out harmful substances.

The process of photosynthesis requires light energy, which is captured by chlorophyll in the chloroplasts. This energy powers the conversion of CO2 and water into glucose and oxygen.

Respiration releases energy from the breakdown of food with oxygen, producing CO2 and water as byproducts. This energy is used for essential processes in the cell, such as growth and repair.

Plant cells have different shapes and sizes depending on their function. For example, root cells are long and thin to increase their surface area for water and nutrient absorption, while leaf cells are broad and flat to maximize light absorption.

Chloroplasts are found in the green parts of plants, where they are needed for photosynthesis. These structures are essential for the plant to make its own food.

Vacuoles can change in size depending on the cell's needs. When a plant cell is well-hydrated, the vacuole is large and the cell is firm. When a plant cell is dehydrated, the vacuole shrinks and the cell becomes limp.

The cell membrane is made of a thin, selectively permeable layer that only allows specific substances to pass through. This ensures that the cell maintains a stable internal environment.

The nucleus controls the cell's activities by regulating gene expression and controlling the production of proteins. These proteins are essential for the cell's growth, repair, and other functions.

Mitochondria are found in both animal and plant cells, highlighting the importance of energy production for all living organisms.

Plants rely on photosynthesis and respiration, working together to create energy and food. Photosynthesis captures light energy and converts it into chemical energy in the form of glucose. Respiration uses this glucose to produce energy (ATP), which fuels the plant's growth and development.