Characteristics of Living Things
This process releases energy from food.
respiration
The basic unit of life.
cell
The enzyme that digests starch.
amylase
A group of organisms of the same species living in an area.
population
The type of tooth used for cutting food.
Incisor
The ability to detect and respond to changes in the environment.
sensitivity
This specialized blood cell transports oxygen.
red blood cell
The optimum temperature for most human enzymes.
37°C
A feeding relationship showing the flow of energy.
food chain
Name three types of teeth
canine, molar, premolar, incisor
A seed germinating demonstrates these two life processes.
respiration and growth
A group of similar cells working together forms this.
tissue
The enzyme responsible for digesting fats
lipase
Name the consumers in a food chain.
organisms that feed on other organisms
The pH at which salivary amylase works best.
pH 7
The process by which organisms remove metabolic waste.
excretion
This organelle is known as the powerhouse of the cell.
mitochondrion
The final products of fat digestion.
fatty acids and glycerol
The process by which dead organisms are broken down.
decomposition
The process of chewing food.
Mastication
Name the seven characteristics of living things.
Movement, Respiration, Sensitivity, Growth, Reproduction, Excretion and Nutrition
Give two adaptations of a red blood cell.
biconcave shape and the presence of haemoglobin
State three properties of enzymes.
A student marked 35 snails. Later, 18 were captured and 10 were marked. Estimate the population.
63 snails
State two functions of teeth in digestion.