Living Organisms

Question 1

What 3 cell parts does a plant cell have that a animal cell doesn’t

Answer 1

• cell wall
• vacuole
• chloroplast

Question 2

Characteristics of living organisms

Answer 2

'MRS H GREN'
Movement 
Respiration
Sensitivity
Homeostasis
Growth
Reproduction
Excretion
Nutrition

Question 3

What is homeostasis

Answer 3

The maintenance of a constant internal environment

Such as body temperature
And body water content

Question 4

what is excretion

Answer 4

removal of waste products such as CO2 and Urea wee and respiration.
Not feseas,

Question 5

define growth in a living organism

Answer 5

the percentage increase of the dry mass of an organism.

Question 6

define nutrition

Answer 6

Taking of a substance used in the body as food

Question 7

reproduction

Answer 7

production of a new organism

Question 8

define respiration

Answer 8

Chemical process in which glucose is broken down releasing energy and CO2 and H2O

Question 9

define sensitivity

Answer 9

the detection of change(stimuli) in the surroundings and its response those changes

Question 10

chloroplast

Answer 10

convert light energy from the sun into useful sugars

Question 11

what is the Mycelium

Answer 11

loads of Hyphae that form the body of a fungus

Question 12

what is a Hypha

Answer 12

A single thread of fungal Mycelium, the plural is (Hyphae)

Question 13

What is a Pathogen

What do Pathogens occur in

Answer 13

it is an organism that causes disease in other living organisms.
Pathogens occur in fungi, bacteria, protoctists and virus’

Question 14

What is Saprotrophic nutrition

Answer 14

it is the digestion of dead food material outside of the body.
fungi does this to feed

Question 15

how do plants store their carbohydrates

Answer 15

as starch or as sucrose

Question 16

How do animals store carbohydrates

Answer 16

as glycogen

Question 17

how do fungi store carbohydrates

Answer 17

as glycogen

Question 18

what are Protoctists

Answer 18

Protoctists are microscopic, single-celled organisms

some feed off other organisms but some have a chloroplast and photosynthesise

Question 19

what are bacteria

Answer 19

bacteria are microscopic, single-celled organisms.
They have a circular chromosome, they also have cell walls and a structure.
Most feed off other living organisms

Question 20

what is a Virus

Answer 20

Infective particles, made from a protein coat surrounding a nucleic acid, they have no cell structure
they only reproduce when inside a cell or another organism

Question 21

What is aerobic respiration in plants

Answer 21

glucose –> ethanol + carbon dioxide and energy

Question 22

How do you test for respiration

X 2

Answer 22

1. Put dead and live beans in test tube with hydrogen carbonate. In a dark room
   The alive Beene will turn the hydrogen carbonate yellow from orange
   … If there is a decrease in co2 the hydrogen will turn purple, this is a sign of photosynthesis
2. Put live beans and dead beans into thermos with thermometer in, live beans will increase in heat. Dead will not

Question 23

What is vasodilation

Answer 23

The expanding of blood vessels to allow more heat to leave the body. Happens when body is cold

Question 24

What is Vasoconstriction

Answer 24

Vasoconstriction is when blood vessels tighten/ become thiner to let less heat out.
Happens when body is cold