Nature Of Living Organisms

Question 1

What is movment

Answer 1

Ability to change postion

Question 2

Respiration

Answer 2

Chemical Breakdown of food to release energy

Question 3

Sensivity

Answer 3

Ability to detect and respond to change in environment

Question 4

Growth

Answer 4

Permenat increase in size

Question 5

Reproduction

Answer 5

Produce offspring

Question 6

Excertion

Answer 6

Get rid of metabollic wastes

Question 7

Nutrition

Answer 7

Intake of food for energy growth and development

Question 8

Difference between prokaryotic and eukaryotic

Answer 8

In prokaryotic nucleus absent
Unicellular
Have circular chromosome of dna and has plasmid
Eukaryotic contain nucleus
Unicellular or multicellular
More than one chromosome

Question 9

Similarities between animal and plant

Answer 9

Both multicellular organisms

Question 10

Difference between plants and animals

Answer 10

Plant contain chloroplasts so can carry out photosynthesis but animal don’t have
Plants contain celluose cell wall but animal don’t have cell walls
Plant store carbohydrates as starch or sucrose but animal store carbohydrates as glycogen

Question 11

Characters tics of fungi

Answer 11

Organism cannot carry out photosynthesis
Some are single cell as yeast
Cell wall made of chitin
Body organized into mycelium made from thread like structure call hyphae
Store carbohydrates as glycogen

Question 12

Charasticts of protoctists

Answer 12

Single celled organism
Some have features like animal cell like amoeba
Protists like chlorea have chloroplasts like plant cell

Question 13

Protoctists cause —-disease responsible for causing ——

Answer 13

Plasmodium, malaria

Question 14

Charasticts of bacteria

Answer 14

Cell wall made of murien
No nucleus but contain circular chromosome of dna
Have cell membrane cytoplasm plasmids,flaggelum, capsule
Some bacteria can carry out photosynthesis

Question 15

Describe pneumococcus and what it cause

Answer 15

Spherical bacterium that act as patgegon cause pneumonia

Question 16

Example of bacteria and its usauge

Answer 16

Lactobacillus bulgaricus rod shape bacterum use in production of yoghurt from milk

Question 17

What is a pathogen and give examples

Answer 17

Organism causes disease
Including virus, bacteria,fungi, protoctists

Question 18

Charasticts of virus

Answer 18

Non living organisms
Don’t respire grow feed or excrete
Smaller than bacteria
Reproduce only inside their host cell
No cellular structure but had protein coat and contain one type of nuclic acid either dna or RNA
Virus are parastic and infect any type of organism

Question 19

Example of virus and what it cause

Answer 19

Tobacco mosaic cause discoloring leaves of tobacco plant prevent formation of chloroplasts
Influenza virus cause flu
Hiv virus cause aids

Question 20

What is saprotrophic nutrition

Answer 20

Feed by extracellular secretion of digestive enzymes onto food mayerial and absorb of organic products

Question 21

Metaboism

Answer 21

Chemical reaction takes place inside cell

Question 22

Stimuli

Answer 22

Change in external or internal environment of organism such as light,heat,pain

Question 23

Dry mass

Answer 23

Actual mass of organism after remove its water content