Biology Flashcards
(37 cards)
Which part of the cell provides energy for the cell?
Mitochondria
Where is the DNA stored in a cell?
Nucleus
What 3 parts of a cell are found in a plant cell but not an animal cell?
Cell wall, Vacuole, Chloroplast
What are the 4 stages of cell organisation?
Cell –> Tissue –> Organ –> Organ System
What meant by the term ovulation?
The release of a mature egg from the ovaries
What is meant by the term fertilisation?
The fusing of the egg and sperm’s nucleus
Where does fertilisation occur?
In the Fallopian tube
What is a habitat?
The environment in which an organism lives
What term describes the build-up of harmful substance in a food chain?
Bioaccumulation
What is an animal that is hunted as a food source?
Prey
What term is used to describe the permanent loss of a species on the planet?
Extinction
What does biodiversity mean?
The variety of living organisms in an area
What does being healthy mean?
Being in a state of complete physical, mental and social well-being
Name an organ damaged by alcohol abuse
Liver
What is the substance used in cigarettes that makes them so addictive
Nicotine
What is the substance used in cigarettes that causes users to possibly develop lung cancer?
Tar
What is the toxic gas released when smoking that causes blood to carry less oxygen
Carbon Monoxide
What are the two reactants for photosynthesis?
Carbon dioxide + Water
What are the two products of photosynthesis?
Glucose + Oxygen
What part of the leaf absorbs sunlight?
Chloroplasts
Which part of the plant transports water?
Xylem
Which part of the leaf controls the entry and exit of gases?
Stomata
What is the purpose of digestion?
To break down large molecules of food into smaller ones to be absorbed by the body
Which organ in the digestive system contains acid?
Stomach
