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2PBiology

Biology Review

QuestionAnswer
This organelle supports and allows substances in and out of the cell cell membrane
This organelle converts food to usuable energy mitochondria
This organelle is known as the control centre of the cell. nucleus
This organelle suspends organelles in the cel. cytoplasm
This organelle stores water and wastes. vacuole
This part of the microscope helps focuse but should only be used on low power. course adjustment knob
This part of the microscope helps control the amount of light. diaphragm
This part f the microscope holds the objective lens and rotates. revolving nose piece
This part of the microscope magnifies 4x, 10x or 40x. objective lens
This part of the microscope will give a sharp focus and is used on mediu or high power. fine adjustment knob
The bottom of the microscope is called the base
what are the 3 stages of the cell cycle? interphase, mitosis and cytokinesis
In what phase is the DNA copied? Interphase
What is the cell doing during interphase? growth, repair and duplication
What phase of the cell cycle do the chromosomes start to thinken and the nuclear membrane disappears? prophase
What phase do the chromosomes meet in the middle? metaphase
What phase do the chromosomes separte and move to opposite poles? anaphase
What phase do new membranes form around the nucleus? telophase
What is a tumour? mass of cells continuously dividing with no function
What is a malignant tumour? The tumour is cancerous
What is a benign tumour? The tumour is not cancerous and does not interfere with surrounding cells.
Is the cell or an organism the most complex on the levels of organism hierarchy? Organism
What is the function of the respriatory system? Provide oxygen to the cells and remove carbon dioxide from cells
Where does gas exchange occur in the respiratory system? Alveoli
How does oxygen get into your blood? diffusion
This organ grinds food using stones in a worm. gizzard
This organ stores food in a worm. crop
What are the two types of digeston? physical and chemical
Do veins or arteries carry blood to the heart? veins
Which organ system produces specialized egg cells in females and sperm cells in males? reproductive system
Which organ system protects internal structures and supports the body? muscculosketal system
Which organ system breaks down food and releases nutrients? digestive system
Which organ system sends signals between the brain the the rest of the body? nervous system
What are tiny hair like projections on the cell membrane? cilia
Created by: PFaulkner