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BIOTECH

Total questions: 57

Worksheet time: 29mins

Name
Class
Date
1.

Who first used the term "cells" when observing cork under a microscope?

a)

Anton van Leeuwenhoek

b)

Robert Hooke

c)

Matthias Schleiden

d)

Rudolf Virchow

2.

What did Anton van Leeuwenhoek call the tiny organisms he observed?

a)

Protozoa

b)

Microns

c)

Animalcules

d)

Planktons

3.

Who concluded that all plants are made of cells?

a)

Schwann

b)

Schleiden

c)

Virchow

d)

Hooke

4.

The idea that "all cells arise from pre-existing cells" was proposed by:

a)

Schwann

b)

Hooke

c)

Schleiden

d)

Virchow

5.

Which of the following is not part of the original Cell Theory?

a)

Cells are the basic units of life

b)

All cells have nuclei

c)

All living organisms are made of cells

d)

Cells arise from pre-existing cells

6.

The compound microscope is credited to:

a)

Robert Hooke

b)

Anton van Leeuwenhoek

c)

Zacharias Janssen

d)

Matthias Schleiden

7.

The term "cytology" refers to:

a)

Study of genetics

b)

Study of bacteria

c)

Study of cell structure and function

d)

Study of enzymes

8.

Who introduced the term "mitochondrion"?

a)

Albert von Kölliker

b)

Zacharias Janssen

c)

Carl Benda

d)

Rudolf Virchow

9.

What year did Schwann propose his part of cell theory?

a)

1838

b)

1839

c)

1855

d)

1665

10.

What scientist discovered bacteria in 1683?

a)

Pasteur

b)

Hooke

c)

Leeuwenhoek

d)

Janssen

11.

Prokaryotic cells lack:

a)

Cytoplasm

b)

DNA

c)

Nucleus

d)

Cell wall

12.

Eukaryotic cells have:

a)

No membrane-bound organelles

b)

Nucleoid region

c)

True nucleus

d)

No ribosomes

13.

The control center of the cell is the:

a)

Ribosome

b)

Nucleus

c)

Golgi body

d)

Cytoplasm

14.

Site of protein synthesis:

a)

Mitochondria

b)

Ribosome

c)

Nucleus

d)

Lysosome

15.

The "powerhouse" of the cell is the:

a)

Nucleolus

b)

Golgi apparatus

c)

Mitochondrion

d)

Lysosome

16.

Which structure maintains homeostasis?

a)

Nucleus

b)

Cell membrane

c)

Golgi body

d)

Centrioles

17.

Cell walls are made of:

a)

Lipids

b)

Peptidoglycan

c)

Phospholipids

d)

Proteins only

18.

The fluid part of cytoplasm is:

a)

Cytosol

b)

Nucleoplasm

c)

Lysosome

d)

Plasmid

19.

The jelly-like substance between membrane and nucleus is:

a)

Nucleus

b)

Cytoplasm

c)

Ribosome

d)

Capsule

20.

Organelle involved in digestion and waste removal:

a)

Golgi apparatus

b)

Lysosome

c)

Peroxisome

d)

Ribosome

21.

Which organelle synthesizes lipids?

a)

Rough ER

b)

Smooth ER

c)

Golgi

d)

Nucleolus

22.

What stores water in plant cells?

a)

Nucleolus

b)

Vacuole

c)

ER

d)

Cytoplasm

23.

The site of photosynthesis in plant cells:

a)

Mitochondria

b)

Nucleus

c)

Chloroplast

d)

Ribosome

24.

Cytoskeleton gives:

a)

Shape and structure

b)

Energy

c)

DNA storage

d)

Digestion

25.

Which is not an organelle?

a)

Ribosome

b)

Nucleus

c)

Golgi body

d)

Vacuole

26.

Which bacterial structure helps with movement?

a)

Nucleoid

b)

Capsule

c)

Flagella

d)

Plasmid

27.

Bacteria without a nucleus are:

a)

Protists

b)

Prokaryotes

c)

Eukaryotes

d)

Algae

28.

Which shape describes cocci?

a)

Rod

b)

Spiral

c)

Spherical

d)

Irregular

29.

Mesosomes increase:

a)

DNA content

b)

Surface area

c)

Capsule size

d)

Cell division

30.

The genetic material in prokaryotes is called:

a)

Nucleus

b)

Chromatin

c)

Nucleoid

d)

RNA

31.

Asexual reproduction involving division into two is:

a)

Budding

b)

Fragmentation

c)

Binary fission

d)

Conjugation

32.

Which reproduction forms conidia in Streptomyces?

a)

Budding

b)

Binary fission

c)

Conidia formation

d)

Cyst formation

33.

Endospores help bacteria:

a)

Reproduce quickly

b)

Store nutrients

c)

Survive harsh conditions

d)

Digest food

34.

Transformation involves:

a)

Viral transfer

b)

Uptake of DNA from environment

c)

Direct contact

d)

Binary fission

35.

Conjugation was discovered in:

a)

Penicillium

b)

Streptomyces

c)

E. coli

d)

Azotobacter

36.

Example of saprophytic bacteria:

a)

Salmonella

b)

Xanthomonas

c)

Penicillium

d)

Rhodomicrobium

37.

Bacteria that rely on host for nutrients are:

a)

Saprophytic

b)

Symbiotic

c)

Parasitic

d)

Autotrophic

38.

Which is not a type of asexual reproduction in bacteria?

a)

Binary fission

b)

Budding

c)

Endospore formation

d)

Conjugation

39.

The whip-like tail used for motion is called:

a)

Pseudopodia

b)

Flagella

c)

Cilia

d)

Pili

40.

What helps bacteria survive unfavorable conditions?

a)

Plasmids

b)

Cysts

c)

Ribosomes

d)

Conidia

41.

DNA replication occurs in:

a)

G1 phase

b)

S phase

c)

G2 phase

d)

Mitosis

42.

What follows mitosis in the cell cycle?

a)

Interphase

b)

G1

c)

Cytokinesis

d)

S phase

43.

Which is the first mitotic phase?

a)

Metaphase

b)

Prophase

c)

Anaphase

d)

Telophase

44.

What happens in metaphase?

a)

DNA replicates

b)

Nucleolus disappears

c)

Chromosomes align at equator

d)

Cytoplasm divides

45.

What ensures equal division of cytoplasm in animal cells?

a)

Cell plate

b)

Cleavage furrow

c)

Spindle fibers

d)

Centrosomes

46.

Which checkpoint checks for DNA errors?

a)

G1

b)

G2

c)

M

d)

G0

47.

What is the longest part of the cell cycle?

a)

Cytokinesis

b)

Mitosis

c)

Interphase

d)

Telophase

48.

What kind of transport uses ATP?

a)

Osmosis

b)

Facilitated diffusion

c)

Active transport

d)

Passive transport

49.

Diffusion moves molecules:

a)

Against gradient

b)

From low to high

c)

Randomly

d)

From high to low concentration

50.

Which transport uses proteins but no energy?

a)

Active transport

b)

Facilitated diffusion

c)

Osmosis

d)

Phagocytosis

51.

Endocytosis involves:

a)

Exporting materials

b)

Water movement

c)

Engulfing materials

d)

Pumping ions

52.

Osmosis is the movement of:

a)

Sugar

b)

Salt

c)

Proteins

d)

Water

53.

In a hypertonic solution, a cell will:

a)

Swell

b)

Shrink

c)

Stay the same

d)

Divide

54.

The main structural component of the membrane is:

a)

Protein

b)

DNA

c)

Phospholipid bilayer

d)

Starch

55.

The sodium-potassium pump is an example of:

a)

Passive transport

b)

Osmosis

c)

Active transport

d)

Facilitated diffusion

56.

Which part of the microscope adjusts light intensity?

a)

Diaphragm

b)

Eyepiece

c)

Base

d)

Arm

57.

What is the magnification of a 10x eyepiece and 40x objective?

a)

400x

b)

40x

c)

100x

d)

10x

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