Plant
human nutrition
Respiration and gas exchange
Human influences on ecosystem
Coordination and response
100

Complete the equation and balance it

CO2 + H2O

What is 6CO₂ + 6H2O → C6H12O6 + 602

100

What is peristalsis 

rhythmical muscular contractions that move food through the alimentary canal


100

What is aerobic respiration 

What is chemical reactions that take place in mitochondria, which use oxygen to break down glucose and other nutrient molecules to release energy for the cell to use

100

What is sustainable resource 

What is one that is produced as rapidly as it is removed

100

What is accommodation

What is changing the shape of the lens to focus on objects at different distances from the eye

200

What is the layer of tissue in a leaf 

What is upper epidermis , palisades mesophyll,

spongy mesophyll,lower epidermis 

200

What nutrients required in a human

What is Carbohydrate, fats, oil, protein,vitamin, mineral, fiber and water

200

Pathway of air entering the body to the alveoli 

What is nose to trachea to bronchi to bronchioles to the alveoli

200

How is food production increase over time?

What is Agricultural machinery and agricultural chemicals 

200

What is the 3 type of nervous system with full form

What is CNS(central nervous system)

PNS(peripheral nervous system)

ANS(Autonomic Nervous System)

300

Any four Uses of carbohydrates 

What is Releasing useful energy, Storing, to use later, Making sucrose (for transport), Making amino acids 9to make proteins), Making nectar (to attract pollinators) ,Making other substances

300

Pathway of alimentary canal and any other organ that is present outside the canal but have a function in it

What is mouth, oesophagus,stomach,small intestine

and large intestine 

pancreas and liver

300

Characteristics of gas exchange surface

What is thin,close to efficient transport system, large surface area, and good supply of oxygen

300

 Disadvantage of Monoculture 

What is reduction in biodiversity, increase in pests and reduction in soil fertility 

300

What happen to the eye when a object is at a close distance

What is 

The ciliary muscle contracts.

The suspensory ligaments are slackened.

The lens is allowed to bulge.

400

Difference between insect and wind pollinated flower 

What is 

Insect-pollinated flower

  • large, conspicuous petals, often with guide- lines
  • often strongly scented
  • often have nectaries at the base of petals
  • anthers inside flower, where insect has to brush past them to reach nectar
  • stigma inside flower, where insect has to brush past it to reach nectar
  • sticky or spiky pollen grains, which stick to insects
  • quite large quantities of pollen made, because some will be eaten or will be delivered to the wrong kind of flower


Wind-pollinated flower

  • small, inconspicuous petals, or no petals at all
  • no scent
  • no nectaries
  • anthers dangle outside the flower, where they catch the wind
  • stigmas large and feathery and dangle outside the flower, where pollen in the air may land on it
  • smooth, light pollen, which can be blown in the wind
  • very large quantities of pollen made, because most will be blown away and lost
400

Which series of processes is digestion deals with 

What is ingestion, digestion, absorption, assimilation

and egestion

400

Any four differences of aerobic and anaerobic respiration 

What is 

Aerobic respiration


  • involves chemical reactions in cells that break down glucose to release energy
  • uses oxygen
  • no alcohol or lactic acid made
  • large amount of energy released from each molecule of glucose
  • carbon dioxide made


Anaerobic respiration


  • involves chemical reactions in cells that break down glucose to release energy
  • does not use oxygen
  • alcohol (in yeast and plants) or lactic acid (in animals) is made
  • much less energy released from each molecule of glucose
  • carbon dioxide is made by yeast and plants, but not by animals
400

Any four disadvantage of intensive farming 

What is welfare issue for livestock,

easy for disease to spread,

waste can pollute the land,

animal food can be use by human,

usage of energy,

large quantities of water


400

Any 4 difference between nervous and endocrine system 

What is 

Nervous system


  • made up of neurones
  • Information transmitted in the form of electrical impulse
  • impulse transmitted along neurones
  • impulse travel very quickly so action is fast
  • effect of a nerve impulse usually only lasts for a very short time


Endocrine system


  • made up of glands
  • information transmitted in the form of chemicals called hormones
  • chemicals carried in the blood plasma
  • chemicals travel more slowly, so action is slower
  • effect of a hormone may last longer