Photosynthesis/ Cell Respiration
What are the reactants needed for photosynthesis to occur?
light energy, water, carbon dioxide
The diffusion of water molecules across a membrane is....
osmosis
What is needed in order for active transport to occur? Be specific
ATP
What is the goal of passive transport?
To reach equilibrium.
Name the stages in order of Mitosis.
Prophase, Metaphase, Anaphase, Telophase
What are the reactants for cell respiration?
glucose and oxygen
define diffusion
particles moving from an area of higher concentration to lower concentration.
Give an example of passive transport.
Osmosis or diffusion
Organisms that create their own food are known as?
Autotrophs or producers
what is happening during Metaphase in Mitosis? (there are two components)
Chromosome pairs align in the center and spindle fibers attach to the centromeres.
What is the chemical equation for cell respiration?
C6H1206 + 6O2 ----> 6CO2 + 6H20 + ATP
How do diffusion and osmosis differ?
Osmosis is the diffusion across a membrane. Diffusion is the movement of any particle from an area of high to low concentration.
What is the process where a cell surrounds the material it is trying to acquire?
Endocytosis
What are the stages of cellular division?
Interphase, mitosis, cytokinesis.
What is the purpose of cellular division?
To create two new daughter cells identical to the parent cell.
How are cell respiration and photosynthesis cyclical?
What one process creates the other needs. Photosynthesis creates O2 and cell respiration will create CO2, which photosynthesis needs.
Give an example of diffusion.
Farting in an elevator, balloon smells, hallway body odor. Acceptable answers may vary.
Explain how the process of exocytosis.
A cell will release its contents by opening up its cellular membrane and expelling a vesicle.
What are 3 similarities between endocytosis and exocytosis?
Both use energy, both involve transporting large materials, both require the cell membrane to be manipulated.
DNA is replicated and organelles are doubled
Explain how a heterotroph obtains it's energy.
First an autotroph (producer) will absorb sunlight to begin the process of photosynthesis. They will produce glucose and transport it to mitochondria. Next a heterotroph will consume the autotroph.
Explain in detail how a semipermeable membrane works.
A semipermeable membrane will allow necessary materials (water) to pass freely through pores while using transport proteins to move other materials through the membrane. The proteins and pores will also block some materials from passing through.
Why do we need both active and passive transport?
We need transport to happen naturally, moving from areas of high to low (passive transport) We also need to be able to control what stays in the cell and what leaves the cell which requires energy usage (active transport)
Identify the 5 contributors to cell theory AND what their contribution was?
Robert Hooke - Discovered dead cells
Leeuwenhoek - Discovered animalcules (bacteria)
Schwann - All animals are made of cells
Schleiden - All plants are made of cells
Virchow - All cells come from existing cells
What is the purpose of mitosis specifically?
To divide DNA equally so two daughter cells can be created.