Chapter 3-Cells Flashcards Preview

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Flashcards in Chapter 3-Cells Deck (36):
0

Defined cells and named them

Hooke

1

Made lenses and observed cells in greater detail

Leeuwenhoek

2

Stated plants are made of cells

Schleiden

3

All living things are made of cells

Schwann

4

All cells come from other cells

Virchow

5

No nucleus or organelles. DNA suspended in cytoplasm

Prokaryotic

6

Nucleus and organelles, DNA in nucleus

Eukaryotic

7

Flexible network of proteins with micro tubules, intermediate filaments, and microfilaments

Cytoskeleton

8

Contains genetic information

Nucleus

9

Produces proteins and lipids

Endoplasmic reticulum (ER)

10

Site of protein synthesis and active participants in the process. Made of proteins and RNA

Ribosomes

11

Processes, sorts, delivers, and packages proteins

Golgi apparatus

12

Sacs that divide materials and transport them around the cells

Vesicle

13

Supplies energy to the cell

Mitochondria

14

Fluid-filled sac. Animals have small ones. Plants have one big one.

Vacuole

15

Contain enzymes that defend cells from bacteria and viruses. It also breaks down old cell parts

Lysosomes

16

Found in animal cells. Help will cell division (mitosis) by each one moving to an opposite side of the dividing cell

Centrioles

17

Found in plants. Provide protection, support, and shape to the cell

Cell wall

18

Site of photosynthesis found in plants. Contains chlorophyll

Chloroplasts

19

Controls what enters and exits the cell

Cell membrane

20

Contains a charged phosphate group, glycerol, and two fatty acids. Two layers found in cell membrane

Phospholipid

21

Demonstrates that the cell membrane is flexible, and shows molecules in the membrane

Fluid mosaic model

22

Detects molecular signals and responds to it. Can bind to a molecule to send a signal

Receptor

23

Moves with the concentration gradient, doesn't require energy (passive transport)

Diffusion

24

Diffusion with water and goes down concentration gradient

Osmosis

25

A solution is _____ to a cell if it has the same concentration as the cell

Isotonic

26

A solution is _____ to a cell if it has a higher concentration than a cell. The water concentration is high inside the cell and water comes out of the cell.

Hypertonic solution (hypotonic cell)

27

A solution is _____ if there is a lower concentration than the cell. The water concentration is higher outside the cell. Water flows into the cell

Hypotonic solution (hypertonic cell)

28

Uses transport proteins to enter the cell easier. Does not require energy (passive). Moves down concentration gradient

Facilitated diffusion

29

Cell takes in a large amount of a material in a vesicle. Requires energy. Does not cross membrane

Endocytosis

30

"Cell eating"; type of endocytosis

Phagocytosis

31

Releases a large amount of a material in a vesicle. Requires energy. Does not cross membrane

Exocytosis

32

Higher solute lower water

Hypertonic

33

Lower solute higher water

Hypotonic

34

_____ membrane allows anything to cross

Permeable

35

_____ membrane only allows some molecules to enter the cell

Semipermeable