Unit 1 ReviewUnit 1 Review

Controlled ExperimentsControlled Experiments Involve one variable that changesInvolve one variable that changes

VariablesVariables Independent – the variable you are testingIndependent – the variable you are testing Dependent – the variable that changes as a result, the data Dependent – the variable that changes as a result, the data

you collectyou collect Controlled – the variables that stay the same in all setupsControlled – the variables that stay the same in all setups

GroupsGroups Control – the group that does not have the variable being Control – the group that does not have the variable being

tested (or at normal conditions)tested (or at normal conditions) Experimental – groups that have different levels of the Experimental – groups that have different levels of the

variable being tested.variable being tested.

A controlled experiment allows a scientist to A controlled experiment allows a scientist to isolate and testisolate and test

A. A logical conclusionA. A logical conclusion

B. A variety of informationB. A variety of information

C. A single variableC. A single variable

D. Several VariablesD. Several Variables

The development of an experimental research plan The development of an experimental research plan should NOT include:should NOT include:

A. A list of safety precautions for the experimentA. A list of safety precautions for the experiment

B. List of equipment needed for conducting the B. List of equipment needed for conducting the experimentexperiment

C. Procedure for the use of technologies needed for the C. Procedure for the use of technologies needed for the experimentexperiment

D. Conclusion based on the data expected to be collected D. Conclusion based on the data expected to be collected during the experimentduring the experiment

While outside raking leaves, you notice While outside raking leaves, you notice several slugs underneath fallen leaves and several slugs underneath fallen leaves and

logs. Describe some parts of an experiment to logs. Describe some parts of an experiment to determine the preference of slugs for light or determine the preference of slugs for light or

darkness. Make sure you:darkness. Make sure you: State the hypothesisState the hypothesis

Identify the independent variableIdentify the independent variable

Identify two conditions that should Identify two conditions that should stay the same in all experimental stay the same in all experimental setupssetups

State one example of the data that State one example of the data that would support your hypothesiswould support your hypothesis

Characteristics of lifeCharacteristics of life

Living things are made of cellsLiving things are made of cells Living things grow and developLiving things grow and develop Living things have levels of organizationLiving things have levels of organization Living Things reproduceLiving Things reproduce Living things use energyLiving things use energy Living things respond to their environmentLiving things respond to their environment Groups of Living things evolveGroups of Living things evolve

Life FunctionsLife Functions

Nutrition (Ingestion, Digestion)Nutrition (Ingestion, Digestion) TransportTransport ExcretionExcretion ReproductionReproduction Respiration (Energy)Respiration (Energy) SynthesisSynthesis RegulationRegulation GrowthGrowth MetabolismMetabolism

A characteristic of all living things is that theyA characteristic of all living things is that they

A. Use carbon dioxideA. Use carbon dioxide

B. Use atmospheric oxygenB. Use atmospheric oxygen

C. Carry on metabolic ActivitiesC. Carry on metabolic Activities

D. Are capable of locomotionD. Are capable of locomotion

It is known that laboratory rats do not require It is known that laboratory rats do not require vitamin C in their diet. However, vitamin C is vitamin C in their diet. However, vitamin C is found in their tissues. The vitamin C is found in their tissues. The vitamin C is present due to a process known aspresent due to a process known as

A. ExcretionA. Excretion B. LocomotionB. Locomotion C. SynthesisC. Synthesis D. OsmosisD. Osmosis

Which term includes all the activities required Which term includes all the activities required to keep an organism alive?to keep an organism alive?

A. MetabolismA. Metabolism

B. GrowthB. Growth

C. NutritionC. Nutrition

D. ExcretionD. Excretion

An activity carried on by every living plant An activity carried on by every living plant and animal is:and animal is:

A. ReproductionA. Reproduction

B. RespirationB. Respiration

C. PhotosynthesisC. Photosynthesis

D. TranspirationD. Transpiration

An organelle differs from an organ in that an An organelle differs from an organ in that an organelleorganelle

A. Is a substructure of a cellA. Is a substructure of a cell

B. Contains one specific type of tissueB. Contains one specific type of tissue

C. Is larger than an organC. Is larger than an organ

D. Cannot be stainedD. Cannot be stained

Write the structure listed below in Write the structure listed below in order from least to most complexorder from least to most complex

OrganOrgan

CellCell

OrganismOrganism

AtomAtom

OrganelleOrganelle

MoleculeMolecule

TissueTissue

Organ SystemOrgan System

HomeostasisHomeostasis

Maintaining a stable internal environmental in Maintaining a stable internal environmental in a changing external environmenta changing external environment

Insulin – lowers blood sugarInsulin – lowers blood sugar

Stomata – Guard cells get larger the stomata Stomata – Guard cells get larger the stomata (openings) are smaller so less water is lost from (openings) are smaller so less water is lost from plants on a hot dayplants on a hot day

Sweat – evaporates to lower our body temperatureSweat – evaporates to lower our body temperature

Homeostatic regulation of the body is made Homeostatic regulation of the body is made possible through the coordination of all body possible through the coordination of all body systems. This coordination is achieved mainly systems. This coordination is achieved mainly by:by:

A. Skeletal and excretory systemsA. Skeletal and excretory systems B. Respiratory and Reproductive SystemsB. Respiratory and Reproductive Systems C. Nervous and endocrine systemsC. Nervous and endocrine systems D. Circulatory and digestive systemsD. Circulatory and digestive systems

Explain how guard cells in both land and water Explain how guard cells in both land and water plants help maintain homeostasis. In your plants help maintain homeostasis. In your answer be sure to:answer be sure to:

Identify one function regulated by guard cells in Identify one function regulated by guard cells in leavesleaves

Explain how guard cells carry out this functionExplain how guard cells carry out this function

MeasurementMeasurement

Metric System – prefixesMetric System – prefixes

K H Da Base d c mK H Da Base d c m

Mass – grams – triple beam balanceMass – grams – triple beam balance Volume – liter – graduated cylinder/beakerVolume – liter – graduated cylinder/beaker Length – meters – rulerLength – meters – ruler

** Know parts of the microscope** Know parts of the microscope

The width of a human hair is 0.1 mm. The The width of a human hair is 0.1 mm. The width of this hair in meters is:width of this hair in meters is:

A. 1 meterA. 1 meter

B. 10 metersB. 10 meters

C. 0.001 metersC. 0.001 meters

D. 0.0001 metersD. 0.0001 meters