what is the basic unit of life

Robert Brown discovered the nucleus in 1831.

Who discovered cell?

Robert Hooke
Initially discovered by Robert Hooke in 1665, the cell has a rich and interesting history that has ultimately given way to many of today’s scientific advancements.May 23, 2019

What cell is a real powerhouse?

Mitochondria are tiny organelles inside cells that are involved in releasing energy from food. This process is known as cellular respiration. It is for this reason that mitochondria are often referred to as the powerhouses of the cell.

Why mitochondria is called powerhouse of the cell?

Mitochondria are often called the “powerhouses” or “energy factories” of a cell because they are responsible for making adenosine triphosphate (ATP), the cell’s main energy-carrying molecule. … Cellular respiration is the process of making ATP using the chemical energy found in glucose and other nutrients.

What is cell powerhouse?

Mitochondria: The Powerhouse of the Cell.

What was Anton van Leeuwenhoek cell theory?

Anton van Leeuwenhoek made an important contribution to the development of the cell theory. in 1674 he algae and animalcules. Contributed to cell theory by believing that there were seeds or eggs too small to see by the eye being planted into food, and other things.

How would you difference between pollen cells and algae cells?

Algae live in water, and their tails help them swim. Pollen grains have spikes that help them stick to insects such as bees.

What was Rudolf Virchow’s contribution to the cell theory?

Virchow used the theory that all cells arise from pre-existing cells to lay the groundwork for cellular pathology, or the study of disease at the cellular level. His work made it more clear that diseases occur at the cellular level. His work led to scientists being able to diagnose diseases more accurately.

Which is known as brain of the cell?

The cell membrane is found in all cells that separates the interior of the cell from the outside environment. So, we can say that the nucleus controls the cell and acts as the brain of the cell.

What is the other name of lysosome?

suicide bags of the cell
Lysosomes are also known as suicide bags of the cell. Lysosomes work as the waste disposing of structures of the cells.

Can you live without lysosomes?

Lysosomes are the membrane-bound vesicles, which contain digestive (hydrolytic) enzymes like acid hydrolase. … If there were no lysosomes in the cell, it will not be able to digest food and there would be accumulation of wastes like worn out parts inside the cell. Thus, cell will not be able to survive.

What are the basic cellular functions that define life?

Cellular functions include such basic life processes as protein and lipid (fat) synthesis, cell division and replication, respiration, metabolism, and ion transport as well as providing structural support for tissues, protecting the body against disease or injury, and serving as selective barriers to the passage of …

Why is it important for students to learn about cells?

As cells are the smallest units of life, all organisms are made up of one or more cells. The understanding of cells is used when learning about the processes later on such as, absorption, how electrical signals are carried, secretion, why some things such as lack of oxygen can cause death, etc.

What do I learn about myself?

To learn about yourself is to provide yourself direction and depth. This is important in a time where most coast through life. The journey to self-improvement begins with a journey to learn about yourself. Knowing your internal belief system, your own goals, desires, and ambitions are essential.

What created viruses?

Viruses may have arisen from mobile genetic elements that gained the ability to move between cells. They may be descendants of previously free-living organisms that adapted a parasitic replication strategy. Perhaps viruses existed before, and led to the evolution of, cellular life.

When did viruses begin?

A key step in the virus evolutionary journey seems to have come about around 1.5 billion years ago – that’s the age at which the team estimated the 66 virus-specific protein folds came on the scene. These changes are to proteins in the virus’ outer coat – the machinery viruses use to break into host cells.

What color are viruses?

By using electrons, which are vastly smaller than light particles, it became possible to identify the shapes, structures and textures of viruses. But as no light is involved in this form of seeing, there is no colour. Images of viruses reveal a monochrome world of grey.

Is DNA considered alive?


what is the basic unit of life



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