Biology Questions

The brain has three main parts the cerebrum, cerebellum and brainstem. As cerebrum is the largest part of the brain it is divided into two hemispheres i.e, right and left. It performs many functions like vision, hearing, touch, learning, consciousness, emotions, etc...

Plants grow in size both in height and in grith. Enlargement  of cells already present cannot contribute much to the growth. Only addition of more and more cells could increase the size of the plant considerably.

Veins carries Blood back from the body parts to the Heart.

We know that The circulatory system of our body is a loop. The Heart is the pump, the arteries and their smaller branches (arterioles) carry oxygen rich blood all through your body and the veins and their smaller branches (venules) carry oxygen depleted blood and waste products back.

Oxygen is transported throughout the body via hemoglobin in the red blood cells. Hence, most of the oxygen transported by the blood is bounded to hemoglobin.

Enzymes are macromolecular biological catalysts. Enzymes accelerate chemical reactions. The molecules upon which enzymes may act are called substrates and the enzyme converts the substrates into different molecules known as products.

Salts and sugars work to preserve foods by creating a Hypertonic environment.

Type 2 diabetes is the most common form of diabetes.

• If you have type 1 diabetes your body does not release insulin.

• If you have type 2 diabetes your body does not use insulin properly.

The nervous system of the human brain consists of the central nervous system which has brain and the spinal cord and the peripheral nervous system which has perpheral, cranary, spinal nerves.