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Flashcards in Human Cell Deck (53)
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1

movement; move something or itself

microvilli

2

Let's certain thing go through

cell membrane

3

lipid metabolism detoxification of drugs ,deactivates steroids, absorbs lipids

smooth ER

4

houses DNA & chromosomes

nucleus

5

allows certain molecules to exit

nuclear pores

6

fluid that suspends the chromatin and nucleolus

nucleoplasm

7

ribosome synthesis

nucleoulus

8

synthesize proteins

ribosome

9

site of protein synthesis; ribosome attachment, synthesize lipids, transports materials in cells

Rough ER

10

Keeps cell in shape, also used for movement

cytoskeleton

11

produce ATP, release energy, cellular respiration

mitochondria

12

digest worn cellular parts or substances that enter cells

lysosome

13

contain and transport substances

vescicle

14

thin, form bundles and meshwork, provide cell movement

microfilament

15

packages proteins for transport and secretion

golgi body

16

occupy space between nucleus and ribosomes; contain protein enzymes

cytoplasm

17

propel fluid over surfaces

ciclia

18

Support most weight in cell, support cytoplasm and move substances

microtubules

19

a cellular organelle built of microtubules that organizes the mitotic spindle

centriole

20

Controls what comes in and out of cells

Cell membrane

21

Allows some molecules in and out of cell

Selectively permeable

22

Cells are made up of what 3 parts?

Nucleus, cell membrane, cytoplasm

23

What are the functions of the proteins found in cell membranes?

Structure, recognition, channel, receptors, transport, adhesion

24

Helps with the stability of the cell membrane, makes less permeable for water soluble things

Cholesterol

25

Combination of phospholipid and embedded proteins/cholesterols, not in a stationary position

Fluid mosaic model

26

Two types of transport mechanisms account for movement of various substances across cellular membranes (2)

Passive and active

27

What are the 4 types of passive transport?

Diffusion, carrier proteins, osmosis, ion channels, filtration

28

What are the 5 types of active transport?

Na-K pump, proton pump, phagocytosis, pinocytosis, exocytosis

29

Where are organelles found?

Cytoplasm

30

Clear liquid in cytoplasm

Cytosol

31

Inner membrane of mitochondria; hold enzymes needed in energy transformations to make ATP

Cristae

32

What two things make up ribosomes?

Proteins and RNA

33

Where are ribosomes made?

Nucleolus

34

What organic compounds do ribosomes synthesize or make?

Proteins

35

What does the rough ER make?

Protein

36

What does the smooth ER make?

Lipids

37

How does the Golgi work with the ER of a cell?

Vesicles travel of the Golgi and carries the chemicals throughout the cell

38

What protein makes up microfilaments?

Actin

39

What does the shape of the cell reflect?

Function

40

Performs special functions of the cell

Organelle

41

How many cells make up the human body?

75 trillion

42

Why do liver and muscle cells have more mitochondria than other types of cells?

Need lots of energy for movement and detoxifying materials

43

Why can cells not survive if they are totally isolated from their environment?

Doesn't have the nutrients they need and won't get things from other cells

44

What is the purpose of the carbohydrate tails attached to some integral proteins?

Cellular ID, sees what does and doesn't belong

45

Describe the outer covering of the mitochondria

Double layered, increases surface area

46

What organelles are the most numerous inside cells?

Ribosomes

47

Requires no energy and works with concentration gradient

Passive

48

Requires energy and doesn't work with concentration gradient

Active

49

Consists of inner and outer lipid bilayer membranes

Nuclear envelope

50

Made up of 2 chromatids connected by a centromere

Chromosomes

51

Consists of loosely coiled fibers of DNA and protein

Chromatin

52

House enzymes that catalyze synthesis of bile acid and detoxification of hydrogen peroxide, alcohol, and break down lipids and biochemicals

Peroxisomes

53

Region near nucleus where centrioles are found that helps organize the spindle fibers during cell division

Centrosome