Chapter 2 (cells

Question 1

Who’s the father of microscope?

Answer 1

Anthony Leeuwenhoek

Question 2

Who’s the inventor of microscope?

Answer 2

Zaccaria’s jassen

Question 3

The discovery of cell gave way for?

Answer 3

Modern cell theory-All living things are composed of cells

Question 4

Function of cytoplasm;

Answer 4

Food storage and complex chemical processes occur here

Question 5

Function of chromosomes

Answer 5

Carry the hereditary material determinig the organism characteristics and transmitting these to subsequent generations

Question 6

What’s the basic structure of cell membrane

Answer 6

Phospholipid.

Question 7

All membrane contains;

Answer 7

Protein and lipid

Question 8

Percentage of lipids and protein contained are?
1.Myelin
2.mitochondria inner membrane
3.red blood cell membrane
4.mouse liver membrane

Answer 8

Lipid and protein respectively
1.76&18
2.24&76
3.43&44
4.52&49

Question 9

The dark-staining zone in the nuclei is called

Answer 9

Nucleolus

Question 10

What is the repository of the genetic information that directs all of the activities of a living eukaryotic cell?

Answer 10

The nucleus

Question 11

Where is the region where intensive synthesis of ribosomal RNA is taking place?

Answer 11

Nucleolus

Question 12

What is the system of cavity in an endoplasmic reticulum?

Answer 12

Cristernea

Question 13

What is the function of the nucleolus ?

Answer 13

Carry’s DNA information to synthesize rRNA

Question 14

What’s the function of the ribosome

Answer 14

Carry’s protein synthesis

Question 15

Function of the rough endoplasmic recticulum?

Answer 15

Isolate and transport proteins that has been synthesized by ribosome

Question 16

Function of the smooth endoplamic recticulum

Answer 16

Synthesis and transport of lipids and steriod

Question 17

Function of the Golgi body

Answer 17

Storage, modification and packaging of protein products and also add polysaccharide to the protein

Question 18

Function of mitochondria

Answer 18

The site of oxidative phosphorylation and electron transport, site of TCA protein

Question 19

Function of the lysosomes

Answer 19

To digest worn out cell . Also called the sucidebag.

Question 20

Function of the centrioles

Answer 20

Helps to assemble microtubules.

Question 21

1.A pair of centriole are called
2.centriole are also called

Answer 21

1.centrosome
2.Microtubules organizing centers

Question 22

1.the average life span of a cytoskeleton micro tubule is
2.the average lifespan of a spindle micro tubule is

Answer 22

1.10mins
2.20 sec

Question 23

What’s give the micro tubule its characteristic tube shape

Answer 23

The Protofilament arranged side by side.

Question 24

What’s use to inhibit depolarization?

Answer 24

GTP- Guanosine Triphosphate

Question 25

The function of micro tubule

Answer 25

responsible for moving materials with in the cell itself

Question 26

The microtubules consist of

Answer 26

Ring of 13 protofilaments made from globular proteins consisting of heterdimers of alpha and beta tubulin units

Question 27

Golgi body consists of

Answer 27

Stacks of flattened cavities lined by smooth endoplasmic recticulum which contain secretory granules

Question 28

Ribosome contains

Answer 28

Significant proportion of RNA in the cell

Question 29

Passive transport include; and there examples

Answer 29

1.diffusion; renovations of waste products from the blood stream
2.Faciliitated diffusion; exchange of oxygen and carbon dioxide in the aveoli
3.Osmosis;
4.Filtration ; ultrafiltration in the kidney

Question 30

Types of active transport;

Answer 30

1.transport with protein; move substances across the wall molecule by molecule by special protein called permeases
2.endocytosis ;phagocyting of material and transporting it

Question 31

What’s are the 3 types of endocytosis ?

Answer 31

1.Phagocytosis
2.Pinacytosis
3.Receptor-mediated endocytosis

Question 32

Centrioles are made up of

Answer 32

9 triplets of micro tubules