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Bio Exam 1 Flashcards

1
Q

What is the difference between a theory and a law?

A

A theory explains why something happens and a law describes what happens when certain conditions are present.

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2
Q

What is the difference between Lysosomes and Peroxisomes?

A

Lysosomes kill and disinfect, peroxisomes carry out oxidative reactions using molecular oxygen.

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3
Q

What is the difference between a theory, law and hypothesis?

A

Hypothesis is a tentative explanation for what was observed, Theory is concepts that join together two or more thorough hypotheses, Law is widely excepted set of theories.

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4
Q

What are the 3 domains?

A
  1. Domain Archaea
  2. Domain Bacteria
  3. Domain Eukarya
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5
Q

Domain Archaea

A

Contain unicellular prokaryotes, live in extreme environments

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6
Q

Domain Bacteria

A

Contains unicellular prokaryotes live in environments like skin in our mouths and intestines.

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7
Q

Domain Eukarya

A

Contain unicellular and multicellular eukaryotes

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8
Q

Prokaryotes are not……..

A

Domains

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9
Q

Goes through all aspects of the experiment but is not exposed to the experimental variable

A

Control Group

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10
Q

What is a PH of 4

A

Acid

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11
Q

What is a PH of 7

A

Neutral

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12
Q

What is a PH of 9

A

Base

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13
Q

All organic molecules contain what?

A

Carbon and Hydrogen atoms

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14
Q

What is the basic unit of all life?

A

Cells

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15
Q

What is the difference between glycogen and starch?

A

Starch: Provides energy storage in plants
Glycogen: Provides energy storage in animals

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16
Q

What is the difference between a population and an ecosystem?

A

Population: All members of a species within an area
Ecosystem: Community plus its physical environment

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17
Q

………… is the maintenance of internal conditions within certain boundries

A

Homeostasis

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18
Q

What is the permanent loss of species called?

A

Extinction

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19
Q

What is the order of hierarchy?

A

Molecules
Cells
Tissue
Organs
Organisms
Population
Ecosystem

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20
Q

Water repelling is…

A

Hydrophobic

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21
Q

water loving is…

A

Hydrophilic

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22
Q

Mutations lead to……

A

Natural selection

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23
Q

natural selection leads to…..

A

Evolution

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24
Q

What is the building block for proteins

A

Amino Acids

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25
Q

When you combine amino acids and protein you get what?

A

Peptide

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26
Q

What do you get when you put peptides together

A

Poly Peptide

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27
Q

What do you get when you twist poly peptides together?

A

Proteins

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28
Q

T or F we are all undergoing mutations everyday

A

True

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29
Q

What is the basic unit of heredity

30
Q

……. Is a chemical reaction in which subunits are joined together by the formation of a covalent bond and water is produced during the reaction.

A

Dehydration reaction

31
Q

A …….… reaction is a chemical reaction in which a water molecules is added to break a covalent bond.

A

Hydrolysis

32
Q

Diffusion of water is

33
Q

Pinocytosis=

34
Q

Phagocytosis=

35
Q

What are the 3 components of a nucleotide

A

Phosphate, sugar, and a base

36
Q

What are prions

A

Misfolded proteins

37
Q

Of the 4 organic molecules which is not a polymer?

38
Q

What are the 4 organic molecules

A

Proteins, Lipids, Carbohydrates, nucleic acids

39
Q

What kingdom do we belong in?

40
Q

Isotonic means…

A

Equal pressure

41
Q

Adenine always matches up with…

42
Q

What is the different between a community and an ecosystem?

A

A community is a collection of interacting populations within the same environment.
An ecosystem is a community plus its physical environment.

43
Q

What are the major elements in the body?

A

Carbon
Hydrogen
Oxygen
Phosphorus
Nitrogen

44
Q

What is the difference between DNA and RNA

A

DNA: Genetic material that stores information for its own replication and for the sequence of amino acids in proteins
RNA perform a wide range of functions within cells which include protein synthesis and regulation of gene expression.

45
Q

Water always moves towards the………

A

Hypertonic

46
Q

What is it called when the cell shrivels up and dies?

A

Crenantion

47
Q

Complementary means……

48
Q

What is the word for breaking down proteins

49
Q

What is the storage form of energy in animals

50
Q

What is the storage form of energy in plants

51
Q

What is the passing of genetic information from generation to generation is called….

52
Q

…… is found in cell walls of fungi and exoskeleton of some animals.

53
Q

Two types of reactions…

A

Dehydration and hydrolysis reaction

54
Q

Facilitated means….

55
Q

What are 2 characteristics of enzymes:

A
  1. used to speed up chemical reactions in the body
  2. They are not consumed
56
Q

What is the formula for glucose

57
Q

What is another name for organic molecules?

A

Bio Molecules

58
Q

DNA has…….. and RNA has…….

A
  1. thymine
  2. Uracil
59
Q

Double ring=

60
Q

………….. is a chemical reaction in which subunits are joined together by the formation of a covalent bond and water is produced during the reaction

A

Dehydration reaction

61
Q

A………… is a chemical reaction in which a water molecule is added to break a covalent bond.

A

Hydrolysis Reaction

62
Q

……… is all the chemical reactions that occur in a cell.

A

Metabolism

63
Q

…………… is a process that converts solar energy into the chemical energy of carbohydrates

A

Photosynthesis

64
Q

The breakdown of food components(proteins, and dietary fats) into their simpler forms , which then can be used to provide energy and the basic building blocks needed for growth and repair

A

Catabolism

65
Q

The part of metabolism in which our body is built or repaired

66
Q

A membrane that allows only some substances and molecules to pass into or leave the cell.

A

Selectively-permeable membrane

67
Q

What is the major lipid found in cell membranes

A

Phospholipids

68
Q

Which domains do not have nuclei

A
  1. Bacteria
  2. Archaea
69
Q

………… are clusters of specific atoms bonded to the carbon skeleton with characteristic structures and functions.

A

Functional Groups

70
Q

What letter represents a functional group

BIO EXAM 1 (1 decks)

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