Levels of Organization & Homeostasis

Slides:

Advertisements

Similar presentations

Human Biology Chapter 1.

Advertisements

Section 28-2 “Homeostasis”

Body Organization and Homeostasis Section 1. Cells The levels of organization in the human body consist of cells, tissues, organs, and organ systems Cell.

Notes: Human Systems, Homeostasis and Feedback Inhibition

Every cell in the human body is both an _________________ and in ______________________ of a larger community – the entire organism. How does the body.

30.1 Organization of the Human Body

KEY CONCEPT The human body has five levels of organization.

CELLS BUILDING BLOCKS OF ALL THINGS EACH HAS A SPECIAL JOB THE SMALLEST LEVEL OF ORGANIZATION.

Learning Targets I can describe cell specialization and levels of organization. I can identify how levels of organization work together in an organism.

Objectives 30.1 Levels of Organization

Human Systems and Homeostasis

KEY CONCEPT The human body has five levels of organization.

Zygote: fertilized cell created by the union of the egg and sperm >200 types of human cells Embryonic stem cells –Created during earliest divisions.

I can relate homeostasis to the internal environment of the body

Balancing Act- Mechanism of Homeostasis

Hierarchy of organization Cells → Tissues → Organs → Organ Systems → Organism.

Zygote: fertilized cell created by the union of the egg and sperm >200 types of human cells Embryonic stem cells –Created during earliest divisions.

Intro to Animal Structure & Function Ch. 40. Cellular Organization The way that cells are organized Tissues: similar cells performing a common function.

Ch   All the body cells work together  Cells are both INDEPENDENT an INTERDEPENDENT of each other.  LEVELS OF ORGANIZATION: cells, tissues,

Do all of your cells do the same thing? Give a few examples.

Introduction to A & P Chapter 1. Characteristics of all living things: –Responsiveness –Growth –Reproduction –Movement –Metabolism.

Level of Organization Cells with a purpose!.

Organization of the Human Body

Cellular Organization

Conditions within the body must remain within a narrow range.

BODY ORGANIZATION AND HOMEOSTASIS

Cell Specialization and Differentiation

30.1 Organization of the Human Body

2. Metric Practice-Lab Grade 3. Handout on body systems

Chapter 14: Bones, Muscles, and Skin.

Introduction to The Human Body

Homeostasis Feedback Loops.

Human Body Systems 35-1 BIO 1004 Flora.

Human Body Introduction

BODY ORGANIZATION AND HOMEOSTASIS

KEY CONCEPT The human body has five levels of organization.

SNC2D1 Cells, Tissues and Organs

Conditions within the body must remain within a narrow range.

Diversity of Cellular Life, Homeostasis, and Cell Communication

Write everything that is underlined

Conditions within the body must remain within a narrow range.

Write everything that is underlined

Aim: How does your body maintain homeostasis?

Feedback Mechanisms Negative Feedback.

Write everything that is underlined

Cell Diversity Cell Shape A cell’s shape reflects its function.

Conditions within the body must remain within a narrow range.

Human Body Systems.

KEY CONCEPT The human body has five levels of organization.

“Homeostasis”.

Conditions within the body must remain within a narrow range.

Organization of Life.

The student is expected to: 4B investigate and explain cellular processes, including homeostasis, energy conversions, transport of molecules, and synthesis.

The student is expected to: 10C analyze the levels of organization in biological systems and relate the levels to each other and to the whole system.

Activity 2: Feedback Mechanisms

KEY CONCEPT The human body has five levels of organization.

Organization of Life & Homeostasis Ms. Day/ AP Biology.

Homeostasis Biology 12.

Section 28-2 “Homeostasis”

Human Body Systems Chapter 13.

Organization of Organisms

Unit 1 – Homeostasis Introduction

Body Systems and Homeostasis

Human Body Systems.

Organization of the Human Body

Unit 1 – Homeostasis Introduction

Presentation transcript:

Levels of Organization & Homeostasis

Multi-celled Organisms Organisms like humans are made of many cells. Cells have different functions (specialized cells that work together)

Determination Stem cells are the first cells present in a developing embryo Have the ability to become any type of specialized cell

Differentiation Committed cells develop specialized structures to help them do their jobs Genes are turned on or off Ex: neurons form dendrites

5 levels of organization in multi-cellular organisms: Cells – smallest unit of life Tissues – made of lots of similar cells Organs – made of tissues Systems – organs that work together Organisms – organ systems work together to perform all functions

Tissue – A group of cells working together

Tissues There are 4 types of tissues in the human body. Muscle Tissue - movement Nervous Tissue – send messages Connective Tissue - supports the body and connects its parts Epithelial Tissue – covers external and internal surfaces

Different tissues make different organs. All perform specific functions and work together to maintain homeostasis

Homeostasis Homeostasis – maintaining stable internal conditions even when external conditions are changing Examples – Regulation of body temperature (sweating, goose bumps) Maintain proper hydration (feeling thirsty)

Examples of Homeostasis Regulation of body temperature (sweating, goose bumps)

Examples of Homeostasis Maintain proper hydration (feeling thirsty)

Feedback Loops The body uses feedback loops to bring levels back to set point Negative – reverses the change to bring conditions back to set point (sweating to reduce body temp) Positive – increases change away from set point (release of hormones during puberty)