the cell metabolism and body system

Why aesthetician study the cell?

To have an understanding of how all living things are made up by cells, bacteria plants, and animals and humans

General points

Human body develops from a single cell at conception. Cells are the basic unit of life. Group of cells, form, body, tissues, group of tissues from body organs, and glands.

General points

Cells are the smallest structure, capable of maintaining life reproducing by dividing.

Groups of organs and glands from body systems

Functions of cells

Reproduction metabolism, respiration, excretion movement sensitivity

Main structures of the cell

1 surface membrane

2 nucleus

3 Cytoplasm

Cell membrane

Encloses the cell supporting wall

Formed by lipid and protein molecules

Nucleus

Located at the centre of the cell contains chromosomes, which are structures in the nucleus containing DNA, which transmit genetic information it is the brain of the cell or control centre chromosome is an important part of cell reproduction and metabolism contain genes that determine hereditary traits

Dictates

Structure what cells look like functions what cell will do

Determine heredity and growth

cytoplasm

Gel fluid substance found between surface cell membrane and nucleus hundreds or thousands of organelles

metabolism definition

a complex process of changing food into forms the body can use as energy

Anabolism

a rebuilding or synthesis process during synthesis it uses energy

Catabolism

a decomposition or destructive process

Secondary role in protein metabolism

All food groups are divided into three groups

1 proteins

2 lipids or fats

3 carbohydrates

Requirements for sale, growth, and production

Food H2O, 02 elimination of waste proper body temperature

production of cells

1 mitosis

2 meiosis

Mitosis:

When a cell reach maturity, they produce Mitosis

Meiosis

is a type of cell division that occurs only in immature sex cells as a part of their becoming mature sex cells

meiosis

generates genetic diversity through the number of chromosomes is reduced to half from 46 to 23 sperm 23 ovum 23

Types of tissue

Composed of groups of cells of the same kind to form tissue

Connective tissue

Functions bones, cartilage, ligaments, tendons, and flat tissues

Muscle tissues

Movement in various parts of the body

Epithelial tissue

Protective covering on body surfaces, example skin

Nervous tissue

Carries messages to and from the brain

Liquid tissue

Carries nutrients waist product and hormones

Organs

Organs are structures containing two or more different types of tissues which combined to perform a specific function example, brain, heart or liver

Systems

Systems are groups of organs that cooperate for a common purpose

Integumentary system-

Skin and associated appendages example hair nails immune system

homeostasis

Homeo =the same

Is the condition in which the cells tissues, glands organs and systems of the body are working in harmony within themselves and with each other

Body temperature

98.6 f

37c