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Science > Science 10F Exam > Flashcards

Science 10F Exam Flashcards

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Biology 101 flashcards
1
Q

What kind of trait is colour blindness?

A

Phenotype and a sex linked trait

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2
Q

The “Big Bank Theory” is a possible explanation for what origin?

A

The origin of our universe.

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3
Q

Who developed the Periodic Table of Elements? When?

A

Dmitri Mendeleev in the late 1800’s.

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4
Q

What are the 6 main properties of metal?

A

Solid at room temperature Shiny luster Good conductors (heat+electricity) Malleable Ductile Reactive with acid and oxygen

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5
Q

What kind of device converts light energy into electrical energy?

A

A photocell

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6
Q

Which unit would best measure the distance between the earth and the sun? What does it stand for?

A

AU=Astronomical Unit

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7
Q

Where are sperms produced?

A

In the testes

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8
Q

What are the state of metalloids at room temperature?

A

Solid

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9
Q

What does nuclear fusion produce?

A

Light energy

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10
Q

How many elections does the first she’ll hold?

A

Two

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11
Q

Who was responsible for suggesting that the Earth was not the centre of the universe?

A

Copernicus

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12
Q

What kind of liquid does the Cowper’s Gland produce?

A

A lubricating fluid

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13
Q

What is a lightning rod? Why are they attached to tall buildings?

A

Is a metal rod used in tall buildings such as skyscrapers yo divert lightning to the ground

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14
Q

The organism’s phenotype refers to what?

A

It refers to the visible trait determined by the genes present

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15
Q

An organism made up of a Dominant Gene and a recessive gene is called a what? (2)

A

A hybrid or a heterozygous

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16
Q

What are the five examples of asexual reproduction?

A

Budding Sporulation Binary fission Vegetative Propagation Regenerative

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17
Q

What are the three methods of charging an object?

A

Friction Conduction Induction

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18
Q

What are the four terrestrial planets?

A

Mercury Venus Earth Mars

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19
Q

What are the six properties of non-metals?

A

Over half are gasses at room temperature Others are solids and liquids Dull luster Usually poor conductors of heat and electricity Brittle or crumbly (non malleable) Non-Ductile

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20
Q

How is current measured?

A

Amperes Or Amps

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21
Q

What are three points on asteroids?

A

Known as “minor planets” Irregular, rocky bodies found primarily in the “asteroid belt” between Mars and Jupiter From 1-1000 km in size

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22
Q

What are three points on matter?

A

Anything that has mass and occupies space The atoms that our universe is made up of Neither created or destroyed, but can change form (physical and chemical changes)

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23
Q

What did Socrates and Aristotle do in 450 BCE? 2

A

Wondered about matter But did no experimentation

24
Q

What are atoms? 3

A

Is the matter that the universe is made of The smallest particles of matter that are the building blocks of the elements they make up. Made up of three main sub-atomic particles (protons, neutrons and electrons)

25
Q

What sub-atomic particle has negligible mass?

A

The electron

26
Q

What is voltage?

A

Is the energy (push) required to move electrons through a conductor.

27
Q

What are phases of mitosis?

A

Interphase Prophase Metaphase Anaphase Telophase + Cytokinesis

28
Q

What is meiosis?

A

The type of cell division that HALVES the number of chromosomes during the production of gametes. Occurs in the reproductive organs Involves replication (like mitosis) and then TWO CELL DIVISIONS

29
Q

What supplies voltage?

A

Batteries Generators

30
Q

How is energy measured?

A

By joules or kilowatt hours

31
Q

What is a chemical equation?

A

Is the shorthand way to show a chemical reaction (atoms bonding to form new compounds)

32
Q

What is energy? 2

A

Is the work done by electricity as it is converted to other forms of energy. The amount of energy used depends on the power rating of an appliance and the total time it is used.

33
Q

What are meteors / meteorites? 2

A

Shooting Star’s DUST and rock fragments that enter the earth’s atmosphere They are heated up and they vapours especially or burned up as they fall.

34
Q

What is the advantage of sexual reproduction?

A

Combining gametes creates genetically unique offspring that allow the species to adapt and survive

35
Q

What is a neutron?

A

Are particles with no charge in the nucleus

36
Q

What are 7 examples of a physical change in matter?

A

Melting #ice to water# Freezing #paper yo ice# Boiling #paper to ice# Bending#magnesium# Crushing #paper# Dissolving #salt# Drawing into a wire #copper#

37
Q

What is Induction?

A

Is the charging of neutral objects through a temporary rearrangement of electrons. #No CONTACT is made#

38
Q

What is a circuit?

A

Is a complete, closed pathway for an electric current to follow

39
Q

What are the five components of a geocentric model?

A

Earth in the middle an did NOT move Moon orbiting Earth Sun closest star to orbit Earth Some UN-NAMED planets orbiting after the sun Then fixed stars

40
Q

What happens during Interphase? 6 words

A

Normal cell functions then chromatins replicate

41
Q

What is the first phase of how a lightning occurs?

A

Friction - electrons and protons are polarized

42
Q

What are seven properties of metalloids?

A

Metal and non-metals properties Solid at room temperature Shiny or dull luster May conduct electricity Poor conductors of heat Brittle or crumbly Non-Ductile

43
Q

How was the Periodic Table of Elements originally organized?

A

By atomic mass and reactivity

44
Q

What is a Homologous Chromosomes?

A

Is if the zygote (offspring) receives 2 chromosomes (genes) for brown eyes, it will have brown eyes. If the offspring is given a pedigree of genes for something, it is guaranteed to possess this traits.

45
Q

What did Empedocles philosophized? 2

A

Proposed the “4 Elements Theory” Matter is composed of Earth, air, water and fire.

46
Q

What is Electrostatics?

A

The study of electricity charged objects or static electricity

47
Q

What is Galaxy? 2

A

Is a huge accumulation of stars and their orbiting planets, NEBULAE gases and dust held together by gravity. The Milky Way Galaxy has 400 billion stars including our sun

48
Q

What is Sexual reproduction? 2

A

Is the production of offspring from the joining of male and female sex cells Male and female sex cells each contribute to the chromosomes of the offspring

49
Q

What is current? 2

A

The continuous flow of electrons through a conductor. The moving electrons give up their energy to a resistor (appliances, bulb, etc)

50
Q

What are insulators? 3 plus the examples

A

Materials on which charges will build up Insulators do not easily allow the flow of electrons Ex. Plastic, wood, glass

51
Q

What is a chemical formula? 2

A

Is the shorthand way to write the name of a compound Ex. Water is H2O

52
Q

What is Atomic Mass? 3

A

Is equal to the number of protons and neutrons in the nucleus (where mass is concentrated) because electrons have negligible mass. The atomic mass of one atom of an element is an average All atoms of an element always contain the same number of protons and neutrons but can have different variation, (may contain more neutrons)

53
Q

What is a Conductor? 3

A

Are materials in which charges can move some distance Conductors do allow a flow of electrons Ex. Metals

54
Q

What is resistance? 2

A

Is the opposition to the flow of electrons caused by friction Produces heat, light or mechanical energy

55
Q

How high or low is the resistance of Good Conductors?

A

They have low resistance.

56
Q

What is this?

A

a load or resistor

Science (6 decks)

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