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Worksheets

CB-L1

Total questions: 57

Worksheet time: 31mins

Name
Class
Date
1.

Prokaryotic

a)

Bacteria

b)

Algae

c)

Archaea

d)

Protists

2.

Eukaryotic

a)

Protists

b)

Fungi

c)

Archaea

d)

Algae

e)

Protozoa

3.

Prokaryotes Reproduce by

a)

Meiosis

b)

Mitosis

c)

Binary fission

4.

eukaryotes Reproduce by

a)

Meiosis

Mitosis

b)

Mitosis

c)

Binary fission

d)

Meiosis

5.

Type of chromosomes in Prokaryotes

a)

Single Linear

b)

single circular

c)

single circular in nucleoid

d)

single linear in nucleoid

6.

Type of chromosomes in eukaryotes

a)

Multiple Linear

b)

multiple circular

c)

single circular in nucleoid

d)

single linear in nucleoid

7.

Prokaryotes Organelles

a)

Embedded in cytoplasm

membrane-bound

b)

Floating in cytoplasm

membrane-bound

c)

Floating in cytoplasm

No membrane-bound

d)

Embedded in cytoplasm

No membrane-bound

8.

Eukaryotic Organelles

a)

Embedded in cytoplasm

membrane-bound

b)

Floating in cytoplasm

membrane-bound

c)

Floating in cytoplasm

No membrane-bound

d)

Embedded in cytoplasm

No membrane-bound

9.

Eukaryotic cell size

a)

10-100

Micrometers

b)

1

Micrometers

10.

Prokaryotic cell size

a)

10-100

Micrometers

b)

1

Micrometers

11.

70 percent of the cells made of

a)

Water

b)

Organelles

12.

30 percent of the cells made of

a)

Water

b)

Organelles

c)

Macromolecules

13.

Significant of the chemical reactions take place simultaneously in all cells

a)

procreation of the cell

b)

Digestion

c)

Filteration

14.

Cells specialize to perform different functions through the process of

a)

differentiation

b)

Proliferation

15.

undifferentiated or partially differentiated cells that can differentiate into various types of cells and proliferate to produce more of the same cell

a)

Stem cell

b)

Mesenchymal cells

c)

Proliferation cell

16.

what is the difference between adult stem cells and embryo stem cells

a)

embryonic is pluripotent

Adult is multipotent

b)

embryonic is multipotent

Adult is pluripotent

17.

Parenchymal cells of liver synthesis

a)

Cytotrophoblast

b)

Albumin

c)

Cysteine

18.

Lymphocytes make

a)

Albumin

b)

immunoglobulin

19.

What determines determine reactions pathways in cells?

a)

Protiens

b)

enzymes

c)

Nucleus

20.

What is the relationship between nucleus and proteins

a)

Genes on chromosomes dominate life of cell controlling protein synthesis.

b)

Proteins function according to nucleus function

21.

Extracellular matrix Made up of

a)

adhesive proteins

b)

proteoglycan

c)

structural proteins

d)

Sphingolipids

22.

Function of Extracellular matrix

a)

cell junctions help hold cells together.

b)

surround, support, and give

structure to cells and tissues.

c)

Maintain cell to cell communication

d)

Maintain homeostasis of cells

23.

Can Extracellular matrix have role in cell growth and movement

a)

True

b)

False

24.

communicate messages from the extracellular matrix

to the cell. Is function of:

a)

Adhesive proteins

b)

Structural proteins

c)

Proteoglycans

25.

Gives tissues their tensile and compressive strength.

a)

Adhesive proteins

b)

Structural proteins

c)

Proteoglycans

26.

Gives tissues their tensile and compressive strength.

a)

Adhesive proteins

b)

Structural proteins

c)

Proteoglycans

27.

hydrates and cushions the cells

a)

Adhesive proteins

b)

Structural proteins

c)

Proteoglycans

28.

Adhesive proteins

a)

integrins

b)

cadherins

c)

collagens

d)

GAGS

29.

Adhesive proteins

a)

integrins

b)

cadherins

c)

collagens

d)

GAGS

30.

Adhesive proteins

a)

keratins

b)

elastins

c)

collagens

d)

GAGS

31.

Proteoglycans

a)

keratins

b)

elastins

c)

collagens

d)

GAGS

32.

Cells are always at risk of damage.

a)

True

b)

False

33.

What is specific about archaea

a)

Live in weird places

b)

Can be considered as eukaryotic and prokaryotic

c)

halophiles

methanogens

thermophiles

d)

thylakoids

carboxysomes

34.

ecologically significant because a huge percentage of gaseous oxygen comes from their photosynthetic activity.

a)

Plants

b)

Algaea

c)

Cyanobacteria

35.

Cyanobacteria

a)

blue-green algae

b)

Considered prokaryotes

c)

Multi-cell photosynthesis

36.

Organelles found in Cyanobacteria

a)

Nucleus

thylakoids

carboxysomes

phycobiliproteins (responsible for its color)

b)

thylakoids

carboxysomes

phycobiliproteins (responsible for its color)

37.

simple eukaryotic organisms(Unicellular)

a)

Protists

b)

Fungi

c)

Animal

d)

Plant

38.

Is the highest percentage of cells in our body from eukaryotic or prokaryotic

a)

Our cells

b)

Bacteria

39.

Prokaryotic ribosome

a)

70s

No membrane-bound

Free in cytoplasm

b)

70s

No membrane-bound

Bound to ER

c)

80s

No membrane-bound

Bound to ER

d)

80s

membrane-bound

Bound to ER

40.

Eukaryotic ribosome

a)

70s

No membrane-bound

Free in cytoplasm

b)

70s

No membrane-bound

Bound to ER

c)

80s

No membrane-bound

Bound to ER

d)

80s

membrane-bound

Bound to ER

41.

Function of histone

a)

compact DNA and regulate chromatin, therefore impacting gene regulation.

b)

Send signals to control gene regulation

c)

Act as adhesive and proteoglycans

42.

Functions of Cell Wall

a)

attachment site) for bacteriophages

and surface appendages

b)

Maintain cell shape

c)

stand high intracellular pressure

d)

Countering the effects of osmotic pressure(when u break balloon)

43.

A bacterium that has lost its cell wall and is surrounded only by the plasma membrane is a

a)

Mycoplasma

b)

protoplast

44.

an enzyme occurring in tears, mucus, and saliva—damages the cell walls of many gram positive bacteria

a)

Lysosome

b)

Lysozyme

c)

Lysolase

45.

Glycocalyx That is organized and tightly attached, it is called a

a)

slime layer

b)

Capsule

46.

Glycocalyx That is unorganized and loosely attached, is called a

a)

slime layer

b)

Capsule

47.

Extra-chromosomal DNA

a)

Plasmid

b)

Capsule

c)

Nucleoid

48.

Function of plasmid

a)

Adhesion of cell to host

b)

Antibiotic resistance, Virulence & toxin production

49.

Movement of flagella to or from a stimulus is called

a)

Taxis

b)

Tumbles

50.

Many bacterial cells have numerous hair like appendages called _____ that are shorter than flagella , and consist of a protein, ___.

a)

fimbriea

pilin

b)

Fimbrae

Pili

51.

Function of Fimbriae and Pili

a)

Immunity against host

b)

Genetic information of antibiotics

c)

They help the cell adhere to surfaces

factor in pathogenicity.

52.

Difference between pili and fimbrae

a)

Pili are longer than fimbriae and number only one or two per cell.

b)

fimbriae are longer than pili and number only one or two per cell.

53.

Cell Wall Composition

a)

peptidoglycan ,(N-acetylglucosamin)and (N-

acetylmuramic acid)

b)

Glycoproteins ,(N-acetylglucosamin)and (N-

acetylmuramic acid)

54.

Gram-negative bacteria

a)

thin layers Of peptidoglycans

b)

Have a lipoprotein, lipopolysaccharide (LPS) and periplasm

c)

phospholipid outer membrane surrounding peptidoglycan layers-provides resistance to phagocytosis

55.

How do we become sick from bacteria

a)

Degradation of LPS of the cell release endotoxin that go to Blood stream

b)

The bacteria affect the immune cells

c)

The bacteria insert their genetic material to the host cells

56.

bacteria do not have cell walls.

a)

Gram - bacteria

b)

Gram + bacteria

c)

Mycoplasma

57.

Can cell wall be The site of action of many Antibiotics

a)

Yes

e.g penicillin

b)

No

Antibiotic cannot break it because it’s semirigid