What are the Specialised features of a red blood cell?

What are the Specialised features of a red blood cell?

they contain haemoglobin – a red protein that combines with oxygen. they have no nucleus so they can contain more haemoglobin. they are small and flexible so that they can fit through narrow blood vessels. they have a biconcave shape (flattened disc shape) to maximise their surface area for oxygen absorption.

What do red nerve cells do?

Red blood cells move oxygen from our lungs to other organs so that they can keep working. These tiny cells are able to move around our whole body very fast – within 20 seconds. To move around the body quickly, a structure like that of nerve cells wouldn’t work well.

How is the nerve cell Specialised?

Nerve cells have branched connections at each end. These join to other nerve cells, allowing them to pass messages around the body. They have a fatty (myelin) sheath that surrounds them. The fatty sheath increases the speed at which the message can travel.

What is the function of a nerve cell BBC Bitesize?

Nerve cells are also called neurones. They are adapted to carry electrical impulses from one place to another: they have a long fibre (axon) which is insulated by a fatty sheath. they have tiny branches (dendrons) which branch further as dendrites at each end.

What is a nerve cell called?

The basic unit of communication in the nervous system is the nerve cell (neuron). Each nerve cell consists of the cell body, which includes the nucleus, a major branching fiber (axon) and numerous smaller branching fibers (dendrites).

Why do nerve cells and skin cells look different?

What makes a skin cell different from a nerve cell? Their DNA is exactly the same. Skin cells need to produce proteins that skin cells need , nerve cells need to produce proteins that nerve cells need. Some genes are turned on in skills cells that are off in nerve cells and vice versa.

How are features of the nervous system adapted to their function?

They are adapted to carry electrical impulses from one place to another. A bundle of neurons is called a nerve . The features of neurons help them to carry out their function efficiently: they have a long fibre (axon ) so they can carry messages up and down the body over long distances.

What are the special features of a muscle cell?

Muscle cells contain filaments of protein that slide over each other to cause muscle contraction. The arrangement of these filaments causes the banded appearance of heart muscle and skeletal muscle. They contain many well-developed mitochondria to provide the energy for muscle contraction.

How does a nerve cell look like?

What does a neuron look like? A useful analogy is to think of a neuron as a tree. A neuron has three main parts: dendrites, an axon, and a cell body or soma (see image below), which can be represented as the branches, roots and trunk of a tree, respectively.

What is a nerve cell like?

Neurons are similar to other cells in the body because: Neurons are surrounded by a cell membrane. Neurons contain cytoplasm, mitochondria and other organelles. Neurons carry out basic cellular processes such as protein synthesis and energy production.

What makes up a nerve cell?

What is the nerve cell?

(nerv sel) A type of cell that receives and sends messages from the body to the brain and back to the body. The messages are sent by a weak electrical current. Also called neuron.

What are the characteristics of a nerve cell?

Generally , about all types of nerve cells ( motor , sensory and relay ) :- It is having Dendrites at it’s end , so that it is attached to an effector or a receptor or a part of the central nervous system . It is having a long Cytoplasm( along the nerve fibre ) , so that it can transmit nerve impulses for long distances .

What is the function of the dendrites of a neuron?

dendrites – branched nerve fibres which receive nerve impulses and pass them towards a cell body. The axon is insulated by a fatty (myelin) sheath. The fatty sheath increases the speed of the nerve impulses along the neuron.

How are nerve cells adapted to carry electrical impulses?

Nerve cells. Nerve cells are also called neurons. They are adapted to carry electrical impulses from one place to another. They feature: dendrites – branched nerve fibres which receive nerve impulses and pass them towards a cell body. The axon is insulated by a fatty (myelin) sheath. The fatty sheath increases the speed

What are the primary structures of the nervous system?

While different types of nerve cells make up the nervous system, they all contain these primary structures: Cell body (Soma) The soma is the cell body of the nerve cell that contains the nucleus. Compared to the other sections of the cell, the cell body is larger and may appear spherical under the microscope.