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CHAPTER 3 - CELLS

Total questions: 91

Worksheet time: 54mins

Name
Class
Date
1.

An adult human body consists of how many cells?

a)

65 million cells

b)

70 million cells

c)

75 million cells

2.

What are the main structures of cells

a)

Nucleus and cytoplasm

b)

Nucleus, cytoplasmic organelles and cell membrane

c)

Nucleus, cytoplasm, cytoplasmic organelles and cell membrane

3.

The outer most limit of the cell

a)

Cell membrane

b)

Nucleus

c)

Cell wall

d)

Nuclear envelope

4.

TRUE OR FALSE: all cells have much in common but are distinctive in several ways

(a)  

5.

Controls entrance and exit of substances

a)

Cell membrane

b)

Ribosome

c)

Lysosome

d)

Nucleus

6.

What is num 1

a)

Microtubules

b)

Flagellum

c)

Chromatin

d)

Ribosomes

7.

Num 2

a)

Micro-tubules

b)

Chromatin

c)

Flagellum

d)

Basal body

8.

What is # 3

a)

Nucleolus

b)

Nucleus

c)

Chromatin

d)

Chromosomes

9.

What is 8

a)

Cell membrane

b)

Basal body

c)

Nuclear envelope

d)

Peroxisomes

10.

The cell membrane is made up of a phospholipid bilayer that has a hydrophilic head (water loving heads) containing of (?) groups.

a)

Phosphate

b)

Fatty acids

c)

Sodium

d)

Carbohydrate

11.

Hydrophobic tails of cell membranes are made up of (?)

a)

Fatty acids

b)

Sodium

c)

Carbohydrates

d)

Lipids

12.

Components of the cell membrane

a)

Cholesterol

b)

Phospholipid

c)

Integral proteins

d)

Peripheral proteins

e)

Carbohydrates

13.

TRUE OR FALSE; molecules that are water soluble can move through the membrane

(a)  

14.

TRUE OR FALSE; Molecules that are soluble in lipids can not enter the cell membrane.

(a)  

15.

These proteins span the cell membrane and functions as receptor

(a)  

16.

These are proteins that span the membrane and allows the passage of certain molecules

(a)  

17.

These are proteins that do not span the membrane but functions as an enzyme or signak transducers

(a)  

18.

Cells are often connected to each other by (?)

a)

Intercellular junctions

b)

Gap junctions

c)

Tight junctions

19.

Occurs when cell membranes of adjacent cells are tightly fused.

a)

Tight junctions

b)

Desomosomes

c)

Gap junctions

20.

Forms small reinforced regions of cell membranes of cells

a)

Desmosome

b)

Gap junctions

c)

Tight junctions

21.

Connect the cell membrane of adjacent cells, but have channels to allow ions to move.

a)

Gap junctions

b)

Desmosomes

c)

Tight junctions

22.

These are molecules that guide cells on the move

(a)  

23.

Coats white blood cells and provides traction to aid white blood cells in reaching injury site.

a)

Selectin

b)

Integrin

24.

Directs the white blood cells between the capillary cell wall

a)

Integrin

b)

Selectin

25.

Networks of membrane and organelles are suspended in a clear gel called (?)

a)

Cytosol

b)

Cytoplasm

c)

Cytoskeleton

26.

It is the supportive framework made up of protein rods and tubules

a)

Cytoskeleton

b)

Cytoplasm

c)

Cytosol

27.

It is the tubular transport system that is incharge of the synthesis of proteins and lipids

a)

Endoplasmic reticulum

b)

Golgi apoaratus

c)

Mitichondria

28.

It is studded with ribosomes

a)

Rough endoplasmic reticulum

b)

cytosol

c)

Smooth endoplasmic reticulum

29.

Stacks of flat membranous sacs that is in the Golgi apparatus

a)

Cisternae

b)

Enzymes

c)

Vesicle

30.

Movements of substances with in cells by way of vesicles

a)

Vesicle trafficking

b)

Exocytosis

c)

Endicytosis

31.

What are the biosynthetic machinery?

(a)  

32.

It can be found on the endoolasmic reticulum and free in the cytoplasm

a)

Ribosomes

b)

Lysosomes

c)

Peroxisomes

33.

Provides structural support and enzymes necessary for protein synthesis

a)

Lysosomes

b)

Rybosomes

c)

Lysosomes

34.

Fluid filled sacs that cintain their own DNA and can devide on their own.

a)

Mitochondria

b)

Nucleus

c)

Cytoplasm

35.

The inner membrane of the mitochondria is folded into (?)

a)

Cisternae

b)

Mitochondrion

c)

Intermembranous space

36.

It controls the reaction of energy released from nutrients.

a)

Mitichondria

b)

Ribosomes

c)

Lysosomes

37.

These are tiny membranous sacs containing enzymes that break down proteins, carbohydrates and nucleic acids

a)

Lysosomes

b)

White blood cells

c)

Peroxisomes

d)

Centrosome

38.

Membranous sacs found in cells but abundant in liver and kidneys

a)

Lysosomes

b)

Peroxisomes

c)

Centrioles

d)

Centrosomes

39.

It is the byprodyct of of the breakdown of fatty acids and amino acids that could be dangerous to the cell. Wherein the enzymes in peroxisomes break it down to water and oxygen

a)

Phospholipid

b)

Nucleic acid

c)

Hydrogen peroxide

d)

Peroxidases

40.

Dismantles worn cells and cell parts

a)

Ribosomes

b)

Lysosomes

c)

Peroxisomes

d)

Vesicles

41.

A type of lysosome that digests bacteria with lysosomal enzymes

a)

White blood cells

b)

Enzymes

c)

Red blood cells

d)

Catalase

42.

What are the biochemical reactions of peroxisomes?

a)

Synthesis of bileducts

b)

Break down of v long chain of fatty acids

c)

Degradation of rare biochemicals

d)

Detoxification of alcohol

e)

Dismantling of worn cells

43.

Located in the cytoplasm near the nucleus

a)

Centrosome

b)

Centrioles

c)

Spindle fibers

d)

Microtubules

44.

It is pinched off from the golgi apparatus and move to the cell membrane. And then, its membrane will then fuse with the cell membrane of the cell and then its contents will be released out of the cell. What is "it"

a)

Vesicles

b)

Microtubules

c)

Golgi apparatus

d)

Endoplasmic reticulum

45.

These are tiny rods of the protein actin and they function in cellular movements

a)

Microfilaments

b)

Microtubules

c)

Cilia

d)

Flagellum

46.

These are tiny hairlike processes which attach just beneath the cell membrane to a basal body. It creates a wave like action.

a)

Flagellum

b)

Cilia

c)

Microtubules

d)

Microfilaments

47.

Are long slender tubes composed of the protein tubulin. they form the cytoskeleton and help move organelles within the cell

a)

Flagellum

b)

Cilia

c)

Microtubules

d)

Microfilaments

48.

These are much longer than a cilium and has a wavelike motion that allows a cell to swim

a)

Nucleus

b)

Flagellum

c)

Cilia

d)

Nuclear envelope

49.

It is a large spherical structure and is enclosed in a double layered nuclear envelope, composed of an inner and outer lipid layer

a)

Nucleus

b)

Nucleoli

c)

Mitochondria

d)

Histones

50.

It is the site or ribosome production

a)

Nucleus

b)

Mitochondria

c)

Nucleolus

d)

Lysosome

51.

Composed of continuous dna molecules wrapped around 8 proteins called histones

a)

Nucleoli

b)

Chromatin fibers

c)

Fibers

d)

Chromosome

52.

It is the tendency of atoms, molecules, and ions to move from areas of higher concentration to areas of low concentration.

a)

Osmosis

b)

Endocytosis

c)

Exocytosis

d)

Diffusion

53.

It is the difference in concentration

(a)  

54.

It progresses until there is no net movement, diffusional equilibrium.

a)

Diffusion

b)

Filtration

c)

Endocytosis

55.

A process Wherein substances that are insoluble in lipids and too large to move through pores move by?

a)

Endocytoses

b)

Facilitated diffusion

56.

The diffusion of water molecules from a region of high concentration to a region of lower watwr concentration across a selectively permeable membrane

a)

Endocytosis

b)

Exocytosis

c)

Osmosis

d)

Diffusion

57.

This includes protein channels and protein carriers, wherein molecules fit into the carrier and are transported across the membrane

a)

Osmosis

b)

Endocytosis

c)

Facilitated diffusion

58.

TRUE OR FALSE; the greater the concentration of nonpermeable particles in a solution, the lower the water concebtration and the greater the osmotic pressure

(a)  

59.

This is a passive process since gravity can be an applied force

a)

Filtration

b)

Active transport

c)

Sodium potassium pump

60.

The movement of molecules from low concentration to high concentration and it requires ATP

a)

Exocytisis

b)

Endocytosis

c)

Active transport

61.

Uptake of material through the cell membrane by the formation of vesicles. It moves particles too large to move by diffusion or active transport.

a)

Exocytosis

b)

Endocytosis

c)

Active transport

62.

Intake of liquid droplets

a)

Phagocytosis

b)

Pinocytosis

c)

Diffusiin

63.

Is the intake of solids, often with fusion of lysosomes which digest the material.

a)

Phagocytosis

b)

Pinocytosis

c)

Exocytosis

64.

Moves specific kind of particles into the cell

a)

Exocytosis

b)

Phagocytosis

c)

Receptor-mediated Endocytosis

65.

Often expels the residue after lysosomal enzymes have digested solids brought in through phagocytosis

a)

Exocytosis

b)

Endocytosis

c)

Transcytosis

66.

Where the secretory vesicles accumulate materials for release from the cell

a)

Transcytosis

b)

Endocytosis

c)

Exocytosis

67.

Combines exocytosis and endocytosis. It is the selective and rapid transport of a substance or particle from one end of the cell to the other

a)

Endocytosis

b)

Exocytosis

c)

Transcytosis

68.

It enables substances to cross barriers formed by tightly connected cells

a)

Cell cycle

b)

Endocytosis

c)

Exocytosis

d)

Transcytosis

69.

It is the series of changes that cell undergoes from the time it forms until it devides

a)

Interphase

b)

Cell cycle

c)

Mitosis

d)

Transcytosis

70.

It is the period of cell growth and function

a)

S phase

b)

G1

c)

G2

d)

Interphase

71.

Is the period of DNA synthesis as the cells prepare for cell division.

a)

G1

b)

S phase

c)

G2

d)

Karyokinesis

72.

It is the first gap or growth phase. During this period cell growth occurs.

a)

G1

b)

G2

c)

S phase

d)

Cytokinesis

73.

Second gap phase. During this period, the cell replicates organelles in preparation for cell division.

a)

G1

b)

Interphase

c)

S phase

d)

G2

74.

Occurs in somatic cells except sex cells

a)

Karyokinesis

b)

Cytokinesis

c)

Mitosis

75.

TRUE OR FALSE: cell division results in 2 genetically identical cells with 23 chromosomes each.

(a)  

76.

________ is nuclear division

a)

Cytokinesis

b)

Karyonises

c)

Mitosis

77.

____________ division of the cytoplasm

a)

Cytokinesis

b)

Karyokinesis

c)

Mitosis

78.

Chromosomes condense from chromatin. And then centrioles move to the poles

a)

Anaphase

b)

Prophase

c)

Metaphase

d)

Telophase

79.

Spindle fibers contract and the chromosomes move to the opposite poles

a)

Telophase

b)

Prophase

c)

Anaphase

d)

Metaphase

80.

Spindle fibers attach to centromers and the chromosomes align in the center of the cell

a)

Metaphase

b)

Anaphase

c)

Prophase

81.

When does cytokinesis begin?

a)

Metaphase

b)

Mitosis

c)

Telophase

d)

Anaphase

82.

Nuclear envelope reforms and chromosomes unwind into chromatin

a)

Metaphase

b)

Telophase

c)

Prophase

d)

Anaphase

83.

The process by which different cells develop different structures and specialized function

(a)  

84.

When does cellular differentiation begin?

a)

Before firtilization

b)

During fertilization

c)

First week after fertilization

85.

How does cells appear to keep track of their divisions?

(a)  

86.

TRUE OR FALSE: During mitotic clock, DNA at the tips of chromosomes wear down as the cell divides and may be a signal for the cell to stop dividing.

(a)  

87.

This is when abnormal growth or neoplasm can produce a disorganized mass

a)

Tumor

b)

Cancer

88.

It is a collection of disorders

(a)  

89.

Remain in place and grow, interfering with the function of healthy tissue

a)

Benign tumors

b)

Malignant

c)

Cancer

90.

Tumors are invasive and extend into sorrounding tissue

a)

Malignant

b)

Benign tumors

c)

Cancer

91.

It causes the growth of cancer cells

a)

Benign tumors

b)

Radiation

c)

Oncogenes

d)

Suppressor genes