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Span 1 > Science Chapter 3 > Flashcards

Science Chapter 3 Flashcards

1
Q

Who observed cork under the microscope and saw tiny chambers he called cells

A

Robert Hooke

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2
Q

Who was the first person to observe microorganisms.

A

Anton Van Leeuwenhoek

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3
Q

What are the Three parts of the Cell theory?

A

All living things are made up of cells. Cells are the basic unit of structure and function in living things. New cells are produced from existing cells.

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4
Q

Two Types of Microscopes.

A

Light and Electron Microscopes.

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5
Q

What type of microscope uses a beam of light to pass through a specimen and uses two lenses to form an image.

A

light microscope.

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6
Q

Two types of Electron Microscopes

A

TEM, and SEM

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6
Q

What microscope uses beams of electrons focused on magnetic fields to magnify?

A

Electron Microscope

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7
Q

Beams of electrons that can only pass through extremely thin slices so images are flat and 2d.

A

Transmission electron microscope

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8
Q

A beam of electrons is scattered over the surface, so images are 3d

A

scanning electron microscopes

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9
Q

a photo of an object seen through a microscope

A

micrograph

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10
Q

small, no nucleus, no membrane bound organelles, single circular DNA.

A

Prokaryotes

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11
Q

Larger, has nucleus, has membrane bound organelles, includes DNA with multiple chromosomes. Ex Plants and Animals.

A

Eukaryotes

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12
Q

eukaryotic cell, doesn’t have chloroplast, has cell wall

A

animal cell

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13
Q

Small structures inside a cell that have specific functions

A

organelles

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14
Q

doesn’t have cell wall, eukaryotic, has bigger vacuole.

A

plant cell

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15
Q

Substance that wants water

A

hydrophilic

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16
Q

process where molecules that cannot directly diffuse across the membrane pass through special membrane proteins. Protein channels only let certain things through

A

facilitated diffusion.

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16
Q

hydrophobic

A

doesn’t want water

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17
Q

Requires no energy

A

Passive energy

18
Q

Process where particles move from an area of high concentration to low concentration

A

diffusion

19
Q

Movement of water through a selected permeable membrane

A

osmosis

20
Q

The concentration of solutes in the same inside and outside of the cell

A

isotonic

21
Q

requires energy, moves from low to high concentration

A

active transport

21
Q

the solution has a lower concentration of solute than the cell

A

hypotonic

21
Q

the solution has a higher concentration than the cell

A

hypertonic

22
Q

taking materials into the cell

A

endocytosis

23
Q

cell release materials

A

exocytosis

24
Q

organisms with one cell

A

unicellular organisms

25
Q

organisms with two or more cells

A

multicellular organisms

26
Q

Protection; regulates entrance and exit of substances; prokaryote and eukaryote; found in both animal and plant cells

A

cell membrane

27
Q

Cell-Tissue-Organ-Organ System

A

Cells in a large organism communicate by means of chemical signals that are passed from one cell to another

28
Q

is prokaryote and eukaryote; found in plant and animal cells; supports organelles; jelly made of water

A

cytoplasm

29
Q

is a prokaryote and eukaryote; found in plant and animal cells; deals with protein synthesis

A

ribosome

30
Q

found in eukaryote cells; found in both plant and animal cells; has ribosomes on surface.

A

rough endoplasmic reticulum

31
Q

found in eukaryote cells; found in both animal and plant cell; helps the cell maintain its shape

A

cytoskeleton

32
Q

found in eukaryote cells; found in both plant and animal cells; contains DNA that tells cell what to do.

A

nucleus

33
Q

found in eukaryote cells; found in both animal and plant cells: stores nutrients

A

vacuole

33
Q

found in eukaryote cells; found in both animal and plant cells; has no ribosomes on surface and deals with lipid synthesis

A

smooth endoplasmic reticulum

34
Q

found in eukaryote cells; found in both plant and animal cells; packages the materials

A

golgi bodies

35
Q

found in eukaryote cells; found in both plant and animal cells; provides cell with energy

A

mitochondria

35
Q

found in eukaryote cells; only in animal cells; digests things

A

lysosome

36
Q

found in eukaryote cells; only found in animal cells; aid in cell division

A

centrosome/centrioles

37
Q

found in eukaryote cells; only found in plant cells; protection and maintains shape

A

cell wall

38
Q

found in eukaryote cells; only found in plant cells; absorbs energy from sun

A

chloroplast

39
Q

found in eukaryote cells; found only in plant cells; stores water

A

central vacuole

Span 1 (8 decks)

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