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SM1 EXAMS > Science Exam #5 > Flashcards

Science Exam #5 Flashcards

0
Q

Independent

A

Factors that change in an experiment.

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1
Q

Constant

A

Factor that stays the same.

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2
Q

Dependent (responding)

A

Factor that may be affected because of the independent variable

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3
Q

Control group

A

Used as a comparison group

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4
Q

Experimental group

A

Group that received the independent variables

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5
Q

Quantitative

A

Measured by quantity; always includes a number (example: 15 centimeters, 2 dogs, 5 people)

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6
Q

Qualitative

A

Descriptions based characteristics (example: red, tall, and metal

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7
Q

Diffusion

A

The movement of particles from regions of higher density to regions of lower quality

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8
Q

Osmosis

A

The diffusion of water through a semipermeable membrane.

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9
Q

Passive transport

A

The movement of substances across a cell membrane without the use of energy by the cell

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10
Q

Active transport

A

The movement of substances across the cell membrane that requires the cell to use energy

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11
Q

Endocytosis

A

The process by which a cell membrane surrounds a vesicles and encloses the particle in a vesicle to bring the particle into the cell.

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12
Q

Exocytosis

A

The process in which a cell releases a particle by enclosing the particle in a vesicle that then moves to the cell surface and fusses with the cell membrane

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13
Q

Photosynthesis

A

The process by which plants, algae, and some bacteria use sunlight, carbon dioxide, and water to make food.

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14
Q

Cellular respiration

A

The process by which cells use oxygen to produce energy from food.

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15
Q

Fermentation

A

The breakdown of food without the use of oxygen

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16
Q

Cell cycle

A

The cycle of a cell

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17
Q

Chromosome

A

In a eukaryotic cell, one of the structures in the nucleus that are made up of DNA and protein; in a prokaryotic cell, the main ring of DNA.

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18
Q

Homologous chromosomes

A

Chromosomes that have the same sequence of genes and the same structure.

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19
Q

Mitosis

A

In a eukaryotic cell a process of cell division that forms two new nuclei, each of which has the same number of chromosomes.

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20
Q

Cytokinesis

A

The division of the cytoplasm of a cell

21
Q

What is the difference between an independent variable and a dependent variable?

A

The independent changes and the dependent may be effected by the independent variable.

22
Q

Why are constant variables important?

A

They are needed to make your experiments more accurate

23
Q

What are the steps of the scientific method in order?

A 
1 question
2 research
3 hypothesis
4 construct the experiment
5 analyze the data
6 conclusion
24
Q

Temperature

A

Thermometer

25
Q

Mass

A

Triple-beam-balance

26
Q

Volume (regular)

A

Ruler

27
Q

Volume (irregular)

A

Graduated cylinder

28
Q

Length

A

Ruler

29
Q

Density (3)

A

1 graduated cylinder
2 triple beam balance
3 ruler

30
Q

What is bias in an experiment?

A

When someone influences an experiment to make it go a certain way

31
Q

What is experimental error

A

When scientists cannot control a variable during an experiment

32
Q

What are two characteristics of prokaryotes

A

1 single celled

2 no nucleus

33
Q

What are two characteristics of eukaryotes

A

1 single/multi- celled

2 nucleus

34
Q

Mitochondria

A

Energy, ATP

35
Q

Cell membrane

A

Separates the cell from the cell’s environment

36
Q

Chloroplasts

A

Photosynthesis

37
Q

Golgi Complex

A

Packages/distributes proteins

38
Q

Nucleus

A

Has DNA, brain

39
Q

Lysosomes

A

Destroy worn-out or damaged organelles

40
Q

Ribosomes

A

Makes proteins

41
Q

Endoplasmic Reticulum

A

Production process of lipids, proteins, and other materials

42
Q

List the 4 different levels of organization in multicellular organisms
(In order)

A

1 cell
2 cell tissue
3 organ
4 organ system

43
Q

How do bacteria reproduce

A

Binary fission

44
Q

Interphase

A

Copy DNA

45
Q

Prophase

A

Chromosomes condense from long strands into rodlike structures

46
Q

Metaphase

A

Nuclear membrane I’d dissolved

47
Q

Anaphase

A

Chromatids separate

48
Q

Telephase

A

Mitosis is complete

49
Q

Cytokinesis

A

Cell wall pinches in two/ a cell plate forms between two new cells

SM1 EXAMS (3 decks)

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