October Review

Question 1

Across the biosphere, the variety of
life is called?

Answer 1

Biological diversity, or biodiversity.

Question 2

A particular type of living things that can reproduce by interbreeding among themselves.

Answer 2

Species

Question 3

The scientific study of all forms of life, or all types of organisms.

Answer 3

Biology

Question 4

And individual living thing.

Answer 4

Organism.

Question 5

The basic unit of life.

Answer 5

Cell

Question 6

All of the chemical processes that build up or break down materials.

Answer 6

Metabolism

Question 7

The genetic material.

Answer 7

Deoxyribonucleic acid or DNA.

Question 8

All living things and all the places that are found on Earth.

Answer 8

Biosphere

Question 9

An organized group of related parts that interact to form a whole.

Answer 9

System

Question 10

Is a physical environment with different species that interact with one another and with nonliving things.

Answer 10

Ecosystem

Question 11

Is the maintenance of constant internal conditions in an organism.

Answer 11

Homeostasis

Question 12

Is the change in living things over time.

Answer 12

Evolution

Question 13

An inherited trait that gives an advantage to individual organisms and is passed on to future generations is an?

Answer 13

Adaptation

Question 14

Includes using our senses to study the world, but it may also involve other tools.

Answer 14

Observation

Question 15

Observations can also be recorded as?

Answer 15

Data

Question 16

Is a proposed answer for a scientific question.

Answer 16

Hypothesis

Question 17

Allow scientists to test hypotheses and find out how something happens.

Answer 17

Experiments

Question 18

Is a condition that is manipulated, or changed, by a scientist.

Answer 18

Indelendent variable

Question 19

Are observed and measured during an experiment; they are the experimental data.

Answer 19

Dependent variable

Question 20

The conditions that do not change during an experiment are called?

Answer 20

Constants

Question 21

Is a proposed explanation for a wide range of observations and experimental results that is supported by a wide range of evidence.

Answer 21

Theory

Question 22

The samllest basic unit of matter.

Answer 22

Atom

Question 23

Is one particular type of atom, and it cannot be broken down into a simpler substance by ordinary chemical means.

Answer 23

Element

Question 24

Ia a substance made of atoms of different elements bonded together in a certain ratio.

Answer 24

Compound

Question 25

How an ionic bond is formed?

Answer 25

Forms through the electrical force between oppositely charged ions.

Question 26

When two ions of different charges become close to the other and they are bonded together because of their charges.

Answer 26

Ionic bond

Question 27

What name receives the compound of two ions through and ionic bond?

Answer 27

Ionic compound

Question 28

Is an atom that has gained or lost one or more electrons.

Answer 28

Ion

Question 29

When a covalent bond is formed?

Answer 29

When two atoms are sharing a pair of electrons.

Question 30

Two or more atoms holded together by covalent bonds.

Answer 30

Molecules.

Question 31

Is an attraction between a slightly positive hydrogen ion and a slightly negative atom.

Answer 31

Hydrogen bond

Question 32

The attraction among molecules of a subtance.

Answer 32

Cohesion

Question 33

The attraction among molecules of different subtances.

Answer 33

Adhesion

Question 34

Is a mixture of substances that is the same through- out—it is a homogeneous mixture.

Answer 34

Solution

Question 35

Is the substance that is present in the greater amount and that dissolves another substance.

Answer 35

Solvent

Question 36

Is a substance that dissolves in a solvent.

Answer 36

Solute

Question 37

Is a compound that releases a proton—a hydrogen ion (H + )—when it dissolves in water.

Answer 37

Acid

Question 38

Are compounds that remove H + ions from a solution.

Answer 38

Bases

Question 39

What is ph?

Answer 39

Power Hydrogen.

Question 40

For what is the ph scale?

Answer 40

To measure how much acidic or basic a subtance is in relation with its concentration of protons or positive hydrogen ions in the subtance.

Question 41

In the ph scale from where to where is more acidic and more basic and where is neutral?

Answer 41

To the left more acidic so are the numbers 6-1 and to the right more basic 8-14 and in the middle 7 neutral.

Question 42

Each subunit in the complete molecule.

Answer 42

Monomer

Question 43

Is a large molecule, or macromolecule, made of many monomers bonded together.

Answer 43

Polymer

Question 44

Are molecules composed of carbon, hydrogen, and oxygen, and they include sugars and starches.

Answer 44

Carbohydrates

Question 45

Are nonpolar molecules that includes fats, oils, and cholesterol.

Answer 45

Lipids

Question 46

Are chains of carbon atoms bonded to hydrogen atoms.

Answer 46

Fatty acids

Question 47

Is a polymer made of monomers called amino acids.

Answer 47

Proteins

Question 48

Are molecules that contain carbon, hydrogen, oxygen, nitrogen, and sometimes sulfur.

Answer 48

Amino acids

Question 49

Are polymers that are made up of monomers called nucleotides.

Answer 49

Nucleic acids

Question 50

What gives to water its ability to stick to other things?

Answer 50

Its adhesion.

Question 51

What makes water molecules stick to each other?

Answer 51

Its cohesion.

Question 52

Tha amount of solute dissolved in a certain amount of solvent is?

Answer 52

A solution's concentration.

Question 53

How is carbon often called?

Answer 53

The building block of life.

Question 54

Carbon based molecules have three fundamental structures?

Answer 54

Straight chains, branched chains, and rings.

Question 55

From what types of carbon-based molecules are made all organism:

Answer 55

Carbohydrates, lipids, proteins, and nucleic acids.

Question 56

With what figure glucose is show?

Answer 56

Hexagon.

Question 57

Of what consist a phospolid?

Answer 57

A polar head made of a phosphate group, and glycerol and two fatty acids as tails.

Question 58

From what is conform the animo acids?

Answer 58

A hydrogen atom, an animo group, a carboxyl group, and different side groups.

Question 59

What do Hooke do and in what age?

Answer 59

He was the first to identify cells, and he named them. In 1665.

Question 60

What do Leeuwenhoek doe and when?

Answer 60

He observed cells in greater details. 1674

Question 61

What do Schleiden do and when?

Answer 61

The first to note that plants are made of cells. 1838

Question 62

Schwann

Answer 62

Conclude that all living things are made of cell. 1839

Question 63

Virchow

Answer 63

Proposed that all cells come from other cells. 1855

Question 64

What differences are between an eukaryotic cell and a prokaryotic cell?

Answer 64

The eukaryotic cell have a nucleus and the prokaryotic cell no so it have its DNA in its citoplasm.

Question 65

What theory is say of the eukaryotic cells?

Answer 65

That they come from the prokaryotic cells.