LESSON 2: UNIFYING THEMES IN THE STUDY OF LIFE Flashcards
is the discipline of science that deals with the study of life. This comprises number of disciplines such as biochemistry and ecology
As a wide-ranging and complex science, biologists designed the term “unifying themes”, which serve as the 10ases for the study of life.
Biology
Atoms
Biosphere
Molecule
Cell
Tissue
Organ
Ecosystem
Community
Population
Body system
Organism
Organization
UNIFYING THEMES IN BIOLOGY (10)BCIEFRRAEB
• Biological System
• Cell
• Interaction with the environment
• Energy and Life
• Form and Function
• Reproduction and
Inheritance
• Regulation
• Adaptation
• Evolution
•Biology and Society
UNIFYING THEMES IN BIOLOGY (10)
• Biological System
• Cell
• Interaction with the environment
• Energy and Life
• Form and Function
• Reproduction and
Inheritance
• Regulation
• Adaptation
• Evolution
•Biology and Society
Living things work as a system, at the same time they cannot be separated from non-living things since they are both operating as a system.
Biological system
Living things work as a system, at the same time they cannot be separated from non-living things since they are both operating as a system.
Biological system
includes organs that interact.
A body system
includes living and non living things that interact.
An ecosystem
is an organized group of interacting parts.
System
Is are the basic and functional unit of life, system of chemical and processes: which denotes that all living things are composed of cells.
Cell
Cell examples
sperm cell
egg cell
root hair cell
ciliated epithelial cell
white blood cell
red blood cell
muscle cell
nerve cell
Ivf (ISI)
Intracytoplasmic
Sperm
Injection
Living things cannot live alone, their survival depends on how they interact with the environment.
Organism have evolved to live and interact with other organisms. Ecology deals with the interactions of living organisms with one another and their environment.
- INTERACTION WITH
THE ENVIRONMENT
Living organisms use a source of energy for their metabolic activities.
Energy and life
Some living organisms capture the light energy and convert it into chemical energy in food
Autothrops
Some living organisms use chemical energy stored in molecules obtained from food.
Heterotrophs
Organisms ‘ structures fit with its functions.
Bats navigate and feed insect prey using echolocation. They produce sound waves at frequencies above human hearing, called ultrasound. The sound waves emitted by bats bounce off objects in their environment. Then, the sounds return to the bats’ ears, which are finely tuned to recognized their own unique
Form and function
Bats use
Echolocation
Traits of parents are being passed from one generationt to the next generation.
Reproduction and inheritance
Asexual, sexual reproduction
Single parent, two parents
Organisms must maintain homeostasis to survive in diverse environments.
Regulation
is the maintenance of constant internal conditions. All living organisms must live in a stable environment.
Cell
of the body
are
surrounded by a small amount of fluid, and normal cell functions depend on the maintenance of cell fluid environment including temperature, volume, and chemical content.
Homeostasis
-_____distributes heat throughout the body
-evaporation of water helps
regulate____
Blood, body temperature
-regulates temperature & changes in osmotic pressure
-maintain water balance in the body
-regulates blood sugar level
Hypothalamus, kidneys, pancreas
