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Study Guide

Living Things- Unit 2

What are the 6 characteristics of all living things? 1)cells (unicellular/multicellular) 2)energy 3)reproduce 4)respond to stimuli 5)DNA 6)grow and develop
What are the differences between sexual and asexual reproduction? Sexual Reproduction-2 parents; the offspring are a combination of both parents Asexual Reproduction-1 parent; genetically identical to the parent
What is the difference between growth and development? Growth-gets larger Development-change
What is DNA? it is the blueprint of life (Deoxyribonucleic Acid)
Provide an example of a response for the stimuli...light. the pupils get smaller
Provide an example of a response for the stimuli...hot. sweat
Provide an example of a response for the stimuli...sweat. shiver
What is heredity? the passing of traits from one generation to the next
Give two chemical processes in your body that are part of metabolism. 1)making proteins 2)breaking down food for energy
What is the difference between complete and incomplete metamorphosis? Complete Metamorphosis-4 stages; does not look the same from baby to adult (butterfly) Incomplete Metamorphosis-3 stages; looks similar to the adult
Give an example of a multicellular organism. animal, plant
Give an example of a unicellular organism. bacteria
What is the benefit of being multicellular? cells can perform many functions
What is homeostasis? the maintenance of a stable internal environment
What is the function of carbohydrates in living things? they provide energy
Use the following words in one complete scientific sentence: stimulus (stimuli), response (respond), homeostasis organisms respond to stimuli in order to maintain homeostasis
What are carbohydrates made up of? sugar
What is the difference between a simple and complex carbohydrate? Simple Carbohydrate-has few sugar molecules Complex Carbohydrate-has many sugar molecules
What is a starch and where is it found? it is a complex carbohydrate and it is found in plants
What substance can you use to determine if something contains starch? iodine
What is the function of lipids? a source of energy
What are two types of lipids? fats and oils
What is a Phospholipid? a lipid found in all membranes
What is the function of a protein? it is involved in all life activities
What are proteins made up of? Amino Acid
What substance can you use to determine if something contains protein? Biruets
List the 4 necessities of living things. 1)food 2)air 3)water 4)living space
How does a producer obtain energy? they make food
Give an example of a producer. plant
How does a consumer produce energy? they eat food
Give an example of a consumer. animal
How does a decomposer obtain energy? they break down food
Give an example of a decomposer. mushroom
What do organisms do to obtain the necessities of living things? they compete with one another
What is an enzyme? protein
Use the following website for practice questions www.hrw.com
Created by: carlsond