All About Cells
This level consists of groups of similar cells working together to perform a particular function
What is a tissue?
A compound light microscope uses this many lenses to view a specimen
What are Two Lenses?
This is the random net movement of particles from high concentration to low concentration until equilibrium
What is Diffusion?
These tightly packed cells contain many chloroplasts and specialize in photosynthesis
What are the Palisade Cells?
This molecule acts as the main energy source produced during photosynthesis and used in respiration
What is Glucose?
These organisms have no nucleus, and their genetic material floats freely in the cytoplasm
What are Prokaryotes?
This part focuses the image after coarse focusing has already brought the specimen roughly into view
What is Fine Adjustment?
This factor increases the rate of diffusion by causing molecules to move faster
What is Temperature?
The uppermost layer of cells on a leaf that protects against water loss and UV radiation
What is the Upper Epidermis?
This process allows plants to make their own food using sunlight, water, and carbon dioxide
What is Photosynthesis?
This plant organelle contains chlorophyll and absorbs light for photosynthesis
What is the Chloroplast?
Cells that become adapted to perform specific functions are said to be this
What is Specialised?
In a hypertonic solution, plant cells lose water and the cytoplasm pulls away from the cell wall. This condition is known as
What is Plasmolysis?
The lower epidermis has more of these than the upper epidermis, aiding in gas exchange
What are Stomata?
This essential raw material from the soil can limit photosynthesis if not available
What is Water?
In animal cells, excess food is stored in the cytoplasm in this form
What are Glycogen Granules?
A section of a sperm cell containing digestive enzymes
What is the Acrosome?
A solution with equal solute concentration inside and outside the cell is called this
What is Isotonic?
The stem contains these two specialized tissues that move water and food
What are the Xylem and Phloem?
A plant will not survive without these two factors if left in a dark room
What are Sunlight and Carbon Dioxide?
This life process involves obtaining or making food for energy
What is Nutrition?
A specialised cell used for increasing surface area for transport of water and ions in plants
What is the Root Hair Cell?
Active transport moves particles in this direction relative to the concentration gradient
What is Against the Concentration Gradient?
These paired cells open and close stomata
What are Guard Cells?
Excess glucose that is not immediately needed by the plant is stored in this form
What is Starch?