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Science Exam > Midterm > Flashcards

Midterm Flashcards

1
Q

The levels of organization

A

atom, molecule, macromolecule, organelle, cells, tissues, organs, organ systems, organisms, populations, communities, ecosystem, and biosphere.

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2
Q

Something to do w level of organizations, he said if you know levels you can get number 2

A

.

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3
Q

What is the incorrect statement about DNA

A

All forms of life are composed of cells w/ a membrane enclosed nucleus.

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4
Q

The main source of energy for producers in an ecosystem?

A

Sunlight

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5
Q

Which level is the lowest that’s actually considered living?

A

Cell

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6
Q

Which is Incorrect ab prokaryotic cells and eukaryotic cells.

A

Has to due with prokaryotic cells not having membrane bound organelles

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7
Q

Type of protein considered a catalyst?

A

Enzyme

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8
Q

What kind of feedback is regulation of the pancreas pertaining to blood glucose levels?

A

Negative

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9
Q

Charles Darwin said organisms are adapted to their environment during descent with modification when the possess….?

A

Inheritable traits enhance their survival and reproductive success of a species.

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10
Q

Atomic number and Atomic Mass.

A

Take atomic number and subtract the atomic mass…

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11
Q

Atoms can’t react when their outer shells are full, meaning they are what?

A

Non-Reactive

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12
Q

Know who gains and loses electrons during ionic bonds

A

The drawing

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13
Q

What is the difference between ionic and covalent?

A

Covalent is when they share, ionic is when the lose or gain electrons.

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14
Q

Which theme goes along w/ evolution?

A

All of the above

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15
Q

What’s a control group?

A

The group who doesn’t receive what you’re testing.

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16
Q

Know why a control group is important?

A

You need something that doesn’t receive what you’re testing so you can compare it.

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17
Q

What bond is it when water bond w/ each other?

A

Hydrogen Bonds

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18
Q

Know the bond strength.. Which one is not a weak bond?

A

Van der Walls

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19
Q

Hypothesis is supported many times is?

A

Theory

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20
Q

All the chemical reactions inside your cell is?

A

Metabolism

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21
Q

Four elements:

A

Carbon, Oxygen, Hydrogen, and Nitrogen

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22
Q

What molecule have carbon?

A

Organic

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23
Q

How to identify the dependent variable…

A

Your measurable change

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24
Q

For a protein molecule in between two amino acids to form what has to be released?

A

water

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25
Q

What kind of bonds are in between bonds in proteins like amino acids?

A

peptide

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26
Q

Term used for a change in shape in proteins, like damaging it?

A

denature

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27
Q

3 parts of a nucleotide?

A

phosphate group, base, and a sugar

28
Q

What is a perimidine?

A

cytosine and uracil

29
Q

.What is a purine?

A

guanine and adenine

30
Q

What bonds with cytosine?

A

guanine

31
Q

What is the cell theory?

A

cells are the basic unit of life

32
Q

A term for the cell membrane?

A

phospholipid bilayer

33
Q

What type of transport is needed to move sodium in and out of the cell?

A

active transport

34
Q

How to move water in and out of the cell?

A

osmosis

35
Q

Noticeable difference plants and animal cells under a microscope?

A

cell wall for plants and it is green and is a box when animals are round

36
Q

What attracts sunlight in chloroplasts?

A

chlorophyll

37
Q

.What qualifies as a specialized cells?

A

any type of cell that has a specialized purpose

38
Q

What is the process of going from higher to lower concentrations?

A

diffusion

39
Q

Glucose and amino acids, are they big molecules? What kind of transport?

A

yes and facilitated diffusion

40
Q

A large question what is the function of ribosomes.

A

make proteins

41
Q

Particular organelle for making oils, etc.

A

Smooth ER

42
Q

Tay sachs disease. What organelle is dysfunctioning if its getting clogged up?

A

lysosomes

43
Q

Liver has to break down certain poisons

A

Smooth ER

44
Q

Organelle in a plant cell that takes up a bunch of room?

A

Vacuole

45
Q

Energy, what organelle?

A

Mitochondira

46
Q

Two cells have it’s own DNA?

A

Mitochondria and Chloroplast

47
Q

Organelle has grana and thylakoid and stroma?

A

Chloroplast

48
Q

Light energy to chemical energy?

A

Chloroplast

49
Q

Organelle that’s responsible for structure of cell?

A

Cell wall

50
Q

Fluid Mosaic Model, where are phospholipid?

A

Inside the membrane, they never go out.

51
Q

In cell membranes, what is purpose of proteins and lipids?

A

They help transportation

52
Q

What kind of molecules would be able to go through cell membrane the easiest?

A

Smallest ones, hydrophobic

53
Q

A carrier protein, what would be a characteristic when it talks about which molecule it prefers

A

Made for a certain type, specific jobs

54
Q

What’s diffusion?

A

In Passive Transport, High to Low Concentration

55
Q

What process has to use ATP?

A

Active Transport. Potassium and Sodium

56
Q

Electron Transport and Kreb Cycle happen where?

A

Mitochondria

57
Q

Correct formula for photosynthesis.

A

6CO2+6H2O→ C6H12O6+6O2

58
Q

Where does respiration occur?

A

Mitochondria

59
Q

Food Chain on Earth?

A

Starts with plants

60
Q

Definition of Thermodynamics?

A

Energy

61
Q

What’s the source of energy for metabolism?

A

ATP

62
Q

ADP and ATP?

A

Phosphorylation

63
Q

Enzymes, turn on and turn off?

A

Activator and ihibitor

64
Q

Which reaction in photosynthesis creates oxygen and ATP?

A

Light Reaction

65
Q

Step of cellular respiration that does not require oxygen?

A

Glycolsis

66
Q

Name of cellular respiration that happens w/o oxygen?

A

Anaerobic

Science Exam (1 decks)

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