Papers Flashcards
How is somthing efficient for gas exchange?
Permeable, thin, large surface area to volume ratio
What are problems withChemical pesticides?
Can effect other species of organism, resistance
What is the gas that causes acid rain?
Sulfur dioxide
Why do cells store glycogen not glucose?
Glucose dissolves
What way is a structure of an artery different to a veins?
- thicker wall
- narrower lumen
How is villi adapted to absorb small molecules?
Large surface area to volume ratio
Thin- shorter diffusion difference
Permeable
Properties of bacteria?
Cell wall, chloroplast, nucleus
Properties of fungi?
Cell wall, nucleus
Properties of viruses?
Chloroplast
What is Assimilation?
Small food molecules used to build large molecules
What is Excretion?
Removal of waste products that have been absorbed
What does Benedict’s solution test for?
Glucose
What is meant by the term gas exchange?
Taking in one gas (oxygen) and producing another (carbon dioxide)
What is meant by the term mutation?
Change in genetic code resulting in the change of proteins
2 biotic factors?
Availability of food
Predictors
Disease
2 abiotic factors?
Pesticides
Temperature
What organism makes antibiotics?
Fungi
What is killed by antibiotics?
Bacteria
What is meant by trophic level?
Stage of food chain
Why does energy decrease up pyramid?
Loss of energy through heat in respiration, failure to consume whole animal, egestion
What is osmoregulation?
Control of water content
Where are things absorbed into to the kidneys?
Glomerus
How does selective reabsorption happen?
Active transport
How do plants absorb water and transfer to leaves
Osmosis
Root hair cells
Xylem
