Biology Part 1 (P1) Cells Flashcards
(30 cards)
Name the organelle that controls cell activities
Nucleus
Name the organelle that controls substances entering and leaving the cells
Cell membrane
Name the organelle that is the site of photosynthesis
Chloroplast
Name the organelle that is the site of respiration
Mitochondria
Name the organelle that produces proteins
Ribosome
Name the organelle that contains cell sap
Vacuole
Name the organelle that contains cellulose
Cell wall
Name the organelle that contains chlorophyll
Chloroplast
Where in the cell does most chemical reactions take place?
Cytoplasm
What type of cells are animal and plant cells?
Eukaryotic cells
What type of cells are bacterial cells?
Prokaryotic cells
What is present in eukaryotic cells but not prokaryotic cells?
Nucleus
Name the circular piece of DNA found in bacterial cells
Plasmid
What is diffusion?
The movement of particles from an area of high concentration to an area of low concentration
What is osmosis?
Diffusion of water molecules from a dilute solution to a concentrated solution through a partially permeable membrane
What is active transport?
Movement of particles from an area of low to high concentration, which requires energy from respiration
State the three conditions that can affect the rate of diffusion
Temperature, concentration gradient, and surface area
Name one adaptation that alveoli have to increase rate of diffusion
Large surface area
What does active transport allow plants to absorb through their roots?
Any of: Magnesium Ions/ Nitrate Ions/ Phosphate Ions
Name the adaptation of muscle cells
Ability to contract and relax
Describe an adaptation of a sperm cell
Tail for Movement, Acrosome Enzymes for breaking down egg, a lot of Mitochondria to transfer energy to tail
Name an adaptation of a root hair cell
Large surface area
Write the equation to calculate magnification
Magnification = Image size / Actual size
Name one advantage an electron microscope has over a light microscope
Higher Magnification & Resolving Power
