Quiz questions about Science

1. The heart, the kidney, the intestines and brain are examples of

Cell

Tissue

Organ

All of the above

The heart, kidney, intestines, and brain are all examples of organs. Organs are composed of different types of tissues that work together to perform specific functions in the body. Each organ has a unique structure and function that contributes to the overall functioning of the body.

Explanation

The heart, kidney, intestines, and brain are all examples of organs. Organs are composed of different types of tissues that work together to perform specific functions in the body. Each organ has a unique structure and function that contributes to the overall functioning of the body.

2. The very very tiny units that make up all living things are called

Organ

Tissue

Cells

All of the above

Cells are the smallest units that make up all living things. They are the basic building blocks of life and are responsible for carrying out all the functions necessary for an organism to survive. Cells can be found in different types of tissues, which in turn make up organs. Therefore, the correct answer is cells.

Explanation

Cells are the smallest units that make up all living things. They are the basic building blocks of life and are responsible for carrying out all the functions necessary for an organism to survive. Cells can be found in different types of tissues, which in turn make up organs. Therefore, the correct answer is cells.

3. For the cells to be alive and healthy. They need a good supply of

Plants and animals

Skin and bones

Food and oxygen

All of the above

Cells require a good supply of food and oxygen to stay alive and healthy. Food provides the necessary nutrients and energy for cellular processes, while oxygen is essential for cellular respiration, which generates energy for the cell. Without an adequate supply of food and oxygen, cells would not be able to carry out their functions and would eventually die. Therefore, the correct answer is food and oxygen.

Explanation

Cells require a good supply of food and oxygen to stay alive and healthy. Food provides the necessary nutrients and energy for cellular processes, while oxygen is essential for cellular respiration, which generates energy for the cell. Without an adequate supply of food and oxygen, cells would not be able to carry out their functions and would eventually die. Therefore, the correct answer is food and oxygen.

4. Match the following

Skin

iris

Nostrils

pinna

Submit

5. The body makes _______________ new cells to replace the old ones that worn out and dead.

Hundreds

Thousands

Millions

Billions

The body makes millions of new cells to replace the old ones that are worn out and dead. This is because cells have a limited lifespan and need to be constantly replenished to maintain the proper functioning of the body.

Explanation

The body makes millions of new cells to replace the old ones that are worn out and dead. This is because cells have a limited lifespan and need to be constantly replenished to maintain the proper functioning of the body.

Quiz Questions About Science