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Chap 7 + 8 / Unit 2

Cell Structure and Diversity (Leaving Cert Exam Questions)

What are phospholipids made of? Phosphate head and lipid tail
How can molecules pass through the cell membrane? Diffusion or osmosis or active transport
Why can aerobic respiration can be different in some cells? May need different amounts of energy
What type of cells have nucleus and membrane-enclosed organelles ? Eukaryotic
What type of cells does not have a nuclei and membrane-enclosed organelles? Prokaryotic (also includes bacterial cells)
What else beside a nucleus contains genetic material? Chloroplast or mitochondria
Where is the cell membrane in plant cell? Immediately inside the cell wall
What is selectively permeable (Cell Membrane)? Only some substances are allowed through
What is passive transport? No (or little) energy needed
What's osmosis? Diffusion that requires the movement of water
What's the function of the ribosome? Protein synthesis (Makes protein)
What tissues do plants have? Dermal and Vascular
Dermal tissue function? Is designed to protect the plant
Vascular tissue function? Transports material
What tissues do animals have? Connective and Nervous
Connective tissue function? Join and supports other body structures
Nervous tissue function? To carry electrical impulses from the brain to the spinal cord
What's the difference between a tissue and an organ? Organ is a group of tissues (working together)
Tissue culture Growth of cells on a (nutrient) medium outside the organism
Requirements for tissue culture Sterile conditions / suitable pH / necessary nutrients
Tissue A group of similar cell with the same function
Created by: Aimee214