BUILDING BLOCKS OF LIFE Flashcards
What are three examples of technological developments that help scientists gather information about the natural world?
A Drone, Satellite tracking device, and a microscope
How does a Drone and satellite tracking device help scientists to scientists gather information about the natural world?
They can use a drone or a satellite tracking device to Measure and map out things
How does a Microscope help scientists to scientists gather information about the natural world?
They can use a Microscope to look into the cell of a plant.
List all the parts of a Microscope
Revolving nose piece
Eyepiece/Occular
Objective lens
Arm
Stage Clips
Stage
Light/lamp:
Coarse focus knob
Fine Focus Knob
Base
What is the purpose of the Revolving Nose piece?
Holds the objective lens up to the eye
What is the purpose of the eyepiece/Occular?
The lens closest to the eye usually magnifies 10x
What is the purpose of the Objective lens?
Set of lenses nearest to the object of the stage
What is the purpose of the Arm?
Holds the upper parts of the microscope
What is the purpose of the Stage clips?
Holds the specimen on the stage
What is the purpose of the Stage?
Holds the specimen or slide to be viewed
What is the purpose of the light/lamp?
Light source
What is the purpose of the Coarse Focus knob?
Brings the specimen to near focus
What is the purpose of the fine focus knob?
To sharpen the focus quality of the specimen
What is the purpose of the Base?
Supports the microscope on the bench
What are the correct steps for using a microscope?
- Place the slide on the stage
- Ensure that the lowest power objective lens is selected
- Adjust the coarse focus knob
- Adjust the Ine focus knob
- Twist the revolving nosepiece to switch to the high-power objective lenses
- Use the Fire Focus Knib if need to focus the image
What happens when you move the slide towards you?
It becomes closer
What happens when you move the the slide towards the left?
It moves to the right
What are three rules to remember when doing a microscopic drawing?
- Labeled total magnification
- No colour
- Label (e.g Cell membrane)
Modern Cell Theory
The cell of the smallest living unit in all organisms
All living things are made of cells
All cells come from other preexisting cell
Nucleaus
The Nucleus is the control Centre of the cell.
Cytoplasm
It is the jelly-like substance inside a cell were things hppen.
Cell Membrane
The thin layer around cells that lets good stuff in and keeps bad stuff out.
Chloroplasts
Part of plant cells that turn sunlight into food.
Cell wall
The tough covering around plants cells that help them stand tall
Mitochondria
Place for cells to release energy by perspiration.
Two examples of Cells
Red blood: Round + flat and Travels around the body giving oxygen.
Sperm: Oval head + long tail and long tail allows it to swim to fertile the egg
Three characteristics of an Amphibian: (Vertebrates)
It is cold-blooded, has skin and lays eggs
Three characteristics of an Mammal: (Vertebrates)
It is Warm-blooded, has hair or fur and live birth
Three characteristics of a Fish: (Vertebrates)
It has a changing body temperature and gills for breathing and Skin with scales
Three characteristics of a Bird: (Vertebrates)
It has skin with feathers, a Beak for feed and a constant body temperature
Three characteristics of a reptile: (Vertebrates)
It has skin with scales, lungs for breathing and a changing body temperature
What is the word equation for respiration?
Glucose + oxygen = Carbon dioxide and Water
Where does respiration occur?
Mitochondria
How do humans get Oxygen and glucose for Respiration?
By inhaling they get oxygen and by eating foods they get glucose.
What are the waste products for Respiration?
Water + Carbon dioxide
Do all living things respire?
Yes
Does photosynthesis release energy?
No
Does Respiration release energy?
Yes
Do plants respire anytime whether it is dark or light?
Yes
Does photosynthesis only respire in the light?
Yes
