Deck 3 (CO): Cells

Question 1

The stability of cell membranes is increased by the presence of ______________________.

Answer 1

cholesterol

Question 2

Cell membranes allow certain materials in or out; such membranes are said to be ____________________________ permeable.

Answer 2

selectively

Question 3

The cell organelles that destroy damaged or misfolded proteins are the ___________________ .

Answer 3

proteasomes

Question 4

Channels in a cell membrane are made of _________________________.

Question 5

Ribosomes are cell organelles that are the site of ________________________________.

Question 6

Receptor sites on cell membranes,for hormones or other molecules,are often made of _____________________.

Question 7

The cell organelle that is a series of tunnels for transport within a cell is the ________________________________.

Question 8

Cell membranes are selectively _____________________,meaning that only certain materials pass through them.

Question 9

In order for a hormone to affect a cell,it must fit into a(n)________________________ on the cell membrane.

Question 10

The cell organelle that secretes cellular products is the ____________________________.

Question 11

Mitochondria are cell organelles that are the site of _____________________________.

Question 12

The bilayer of a cell membrane is made of ______________________.

Question 13

The cell organelles that are the site of cell respiration are the ______________________.

Question 14

Lipid-soluble materials may diffuse through a cell membrane because of the presence of ________________________.

Question 15

One function of the endoplasmic reticulum of a cell is the synthesis of _______________.

Question 16

The Golgi apparatus is a cell organelle that ____________________ cellular products.

Question 17

Proteasomes are cell organelles that destroyed damaged or misfolded ________________.

Question 18

Lysosomes are cell organelles that contain ____________________ to destroy pathogens or damaged cellular parts.

Question 19

The cell organelles that contain digestive enzymes are the _________________________.

Question 20

The cell organelles that are the site of protein synthesis are ______________________.

Question 21

Tissue fluid is formed throughout the body by the process of _______________________.

Question 22

Most cells take in glucose by the process of _____________________________.

Question 23

The cell organelles that permit sperm cells to move are _______________________.

Question 24

In the process of facilitated diffusion,a substance moves from an area of _____________ concentration to an area of ____________________ concentration.

Question 25

Chromosomes are made of ________________,and are found in the ________________ of a cell.

Question 26

The cell organelles that sweep materials across a cell surface are ______________________.

Question 27

Blood pressure in capillaries provides energy for the transport process of __________________________.

Question 28

The energy for filtration in the body is provided by ________________________.

Question 29

Facilitated diffusion requires ______________________ that are part of the cell membrane.

Question 30

The nucleus is the regulating center of a cell because it contains the _____________________.

Question 31

Genes are segments of DNA that are part of _____________________ in the _________________ of a cell.

Question 32

In the lungs and tissues,oxygen and CO? move by the process of ____________________.

Question 33

The presence of ____________________ in a cell membrane will increase the surface area of the membrane.

Question 34

The natural motion of molecules provides the energy for the process of ________________.

Question 35

In the process of diffusion,molecules move from an area of _______________________ to an area of ___________________________.

Question 36

Microvilli are _______________ of the cell membrane that increase the _________________ of the membrane.

Question 37

The movement of molecules from an area of greater concentration to an area of lesser concentration is called ________________________.

Question 38

The cellular transport process that requires transporters (carrier enzymes)is ______________________.

Question 39

The first step in the formation of urine is the process of _______________________.

Question 40

In the process of filtration,water and dissolved material move from an area of ______________________ to an area of __________________________.

Question 41

A solution with the same salt concentration as human cells is said to be _________________________.

Question 42

The diffusion of water through a membrane is called ______________________.

Question 43

The cells of the small intestine absorb amino acids by the process of ___________________.

Question 44

The kidneys reabsorb water by the process of _________________________.

Question 45

A solution with a lesser salt concentration than human cells is said to be __________________________.

Question 46

Human cells will lose water and shrivel if they are placed in a solution that is _____________________________.

Question 47

Osmosis is defined as the ___________________ of ________________ through a membrane.

Question 48

A solution with a greater salt concentration than human cells is said to be __________________________.

Question 49

The small intestine absorbs water by the process of _________________________,

Question 50

The water content of red blood cells does not change when the cells are in blood plasma,because plasma is _________________________ to the cells.

Question 51

The movement of molecules from an area of lesser concentration to an area of greater concentration is called ______________________________.

Question 52

The energy for the process of active transport is provided by _____________________.

Question 53

In the process of active transport,molecules move from an area of ______________________ to an area of ___________________________.

Question 54

Cells that take in small proteins by pinocytosis are found in the __________________ (organ).

Question 55

Moving cells engulf particles by the process of _________________________.

Question 56

Stationary cells take in small particles by the process of ___________________________.

Question 57

Some cells of the kidney tubules reabsorb small proteins by the process of ____________________________.

Question 58

Phagocytosis is the process by which __________________________ engulf bacteria.

Question 59

Human cells will take in water and swell if they are placed in a solution that is _____________________________.

Question 60

In nerve and muscle cells,the sodium pumps are an example of the process of ______________________________.

Question 61

In mitosis,the spindle fibers form between the centrioles during ____________________.

Question 62

The human diploid number of chromosomes is _________________.

Question 63

In mitosis,the pairs of chromatids line up on the equator of the cell during ______________.

Question 64

The genetic code of a chromosome is found in its __________________.

Question 65

In mitosis,the two sets of chromosomes are separated during ____________________.

Question 66

In mitosis,the centromeres of the chromatid pairs divide during _____________________.

Question 67

The mature human cells that do not have chromosomes are the ___________________.

Question 68

Most human cells have _________ chromosomes,which contain _____________ as the hereditary material.

Question 69

In mitosis,the chromosomes become visible during _____________________.

Question 70

Chromosomes are made of two types of organic molecules: ___________________ and _____________________.

Question 71

The human haploid number of chromosomes is ________________.

Question 72

White blood cells engulf bacteria by the process of __________________________.

Question 73

Most human cells have ______________ (how many)chromosomes.

Question 74

Most human cells have ___________ chromosomes,which is the ______________ number for people.

Question 75

In mitosis,the nuclear membrane disappears and the chromosomes coil up during ________________________.

Question 76

In mitosis,two nuclear membranes begin to form during _________________________.

Question 77

In mitosis,the chromatids become separate chromosomes during ____________________.

Question 78

In mitosis,the spindle fibers contract and pull the sets of chromosomes during _________________________.

Question 79

In mitosis,the centrioles move to opposite poles of the cell during __________________.

Question 80

In mitosis,each chromosome becomes visible as a pair of _______________ during __________________________.