Topic 1.1 - Characteristics of living things.
Topic 1.2 - Where do living things come from?
Topic 1.3 - How are cells different from one another?
Topic 1.4 - Interactions between humans and microbes.
Topic 1.5 - How the body protect us from pathogens?
100
True or False: Living things reproduce, produce their own food, respoond to stimuli, and are made of one or more cells.
False, not all living organisms can produce their own food.
100
Where do living things come from?
Living things come only from other living things.
100
All cells are classified into two groups based on the presence or absence of ___(what)____ ?
A nucleus.
100
What is the difference between micro-organisms and microbes?
Microbe is shortened word for micro-organism so they can be used synonomously.
100
What is the function of our immune system?
The immune system protects us from pathogens and infections.
200
What is a cell?
A cell is the basic structural and functional unit of life.
200
Who was Robert Hooke?
Robert Hooke was a scientist from the 17th century who created microscopes and made sketches of microscopic organisms.
200
True or False: Photosynthesis and cellular respiration are processes that funtion together as a cycle.
True
200
Can microbes be used safely for humans? yes or no? If yes then list two things they can be used to help humans for?
Yes, Food production, medicine production, agriculture production, waste management, disaster recovery.
200
What is inflamation?
a process that causes a part of the body to become red and swollen.
300
What are the four main characteristics of living things?
Living things are made of cells
Living things take in nutrients
Living things use energy
Living things produce waste
300
Define Cell Theory in Biology?
Cell Theory: the theory in biology that explains the structure and source of all living things.
300
True or False: Cellular respiration is a chemical reaction that uses the energy of the sunlight to change carbon dioxide and water into sugar and oxygen.
False - Photosynthesis is a chemical reaction that uses the energy of the sunlight to change carbon dioxide and water into sugar and oxygen.
300
Give two negative examples of how microbes affect humans.
Pathogens can make humans sick
Spoil our food sources
300
What are the three parts to the immune system's first line of defense?
The skin, the linings of internal body systems, and our respirations system contains hairs to remove pathogens or foreign objects.
400
Why do living things need energy, and where do they get it from?
Living things use energy to grow, to respond to their environment, to move, to reproduce, and to sleep. This energy comes from the food they eat and is made available to their cells through cellular respiration.
400
What are the three components of the Cell Theory?
1. All living things are made up of cells.
2. All new cells come from pre-existing cells.
3. The cell is the basic unit of life.
400
List the chemical reaction that takes place between Photosynthesis and Cellular Respiration.
Carbondioxide + Water --> Sugar and Oxygen
400
Two main types of microbes do what, and give an example.
Decomposers - decompose and breakdown detritus or decaying organic materials.
Producers - phytoplankton produce about 50% of all oxygen we breathe on Earth.
400
What is the immune system's second line of defense? Explain how this works.
Swelling is the body's second line of defense. If there is a break in the skin the body swells around the hurt area sending white bloodcells to the area so they can surround and kill any pathogens that enter the body through the opening in the skin.
500
How are unicellular and multicellular living things similar and different?
Unicellular organisms are made of only one cell, so food and waste materials go directly into and out of the cell, either across the cell membrane or through vesicles. Multicellular organisms take in food and expel wastes using different structures or systems, such as the digestive system or the kidneys.
500
What are the parts of the virus?
A: Protein Coat
B: Genetic Material
C: Tail
D: Fibres
500
What are the two main differences between prokaryotic and eukaryotic cells?
Eukaryotic cells have genetic material contained in a nucleus surrounded by a membrane, and they have organelles surrounded by membranes.
500
How many different microbes are currently being used to help us to treat water and decompose waste materials?
300 different microbes are used today.
500
What is the third line of defense in the body's immune system and explain how it works.
The third line of defence is the use of special white blood cells to fight pathogens (antigens, antibodies, B-cells, and T-cells). They respond quickly to prevent people from getting sick.