Take a look at your information of yr 11 Biology Module 2 by answering the next 10 Organisation of Residing Issues questions.
The solutions are on the backside of the web page.
Questions
Query 1
Choose the proper hierarchical organisation of multicellular organisms.
(a) Cell > Organ > Tissue > Organ system > Organism
(b) Tissue > Cells> Organ > Organ system > Organism
(c) Cell > Tissue > Organ > Organ system > Organism
(d) Organ > Cell > Tissue > Organ system > Organism
Query 2
Evaluate the motion of drugs inside xylem and phloem tissue.
Query 3
Which of the next is a part of the fuel change system present in vegetation?
(a) Stomata
(b) Roots
(c) Lenticels
(d) All the above
Query 4
Describe the dentition and digestive tract of a named herbivore.
Query 5
Utilizing examples, define the distinction between unicellular, colonial and multicellular organisms.
Query 6
Determine three frequent respiratory options for environment friendly fuel change in animals.
Query 7
Which of the next radioisotopes can be utilized to hint the merchandise of photosynthesis in vegetation?
(a) Technetium-99m
(b) Copper-64
(c) Oxygen-18
(d) Iron-59
Query 8
Full the desk to stipulate the perform of assorted digestive constructions in animals.
| Construction | Perform |
| Mouth | |
| Abdomen | |
| Small intenstine | |
| Giant intenstine | |
| Rectum and anus |
Query 9
Describe an open circulatory system and a closed circulatory system.
Query 10
Which of the next finest describes the modifications to blood composition within the lungs?
(a) Each oxygen and carbon dioxide go away the blood
(b) Each oxygen and carbon dioxide enter the blood
(c) Oxygen enters the blood whereas carbon dioxide leaves the blood
(d) Oxygen leaves the blood whereas carbon dioxide enters the blood
Solutions
Query 1
Cell > Tissue > Organ > Organ system > Organism
Query 2
| Xylem | Phloem | |
| Materials | Transports water and minerals | Transports sugars |
| Motion | Unidirectional motion (from roots to shoots) | Bidirectional motion |
| Transport | Passive transport | Passive and lively transport |
| Principle | Transpiration-adhesion-cohesion-tension (TACT) principle | Stress-flow speculation / supply to sink |
Query 3
(d) All the above
Query 4
Examples embrace pink kangaroo.
Dentition:
Distinguished incisors for the preliminary reducing of vegetation. Lacks canine tooth however has giant flat molars and premolars for the breakdown of the powerful cellulose present in grass.
Digestive tract:
Lengthy and sophisticated. Has a caecum for the fermentation of cellulose by intestine microorganisms.
Query 5
Unicellular organisms comparable to micro organism are made up of 1 cell. The cell can perform all the required features within the organism.
Multicellular organisms comparable to animals and vegetation include many specialised cells that work collectively to carry out completely different duties within the physique. The cells can not survive on their very own if separated.
Colonial organisms comparable to Pandorina seek advice from a colony of single-celled organisms residing collectively. The cells within the colony can survive on their very own if separated.
Query 6
- Wealthy blood provide for the fast transport of gases across the physique.
- Giant floor space to maximise diffusion price.
- Skinny and moist membranes to permit gases to simply diffuse throughout membranes and into the blood.
Query 7
Oxygen-18
Query 8
| Construction | Perform |
| Mouth |
|
| Abdomen |
|
| Small gut |
|
| Giant gut |
|
| Rectum and anus |
|
Query 9
Open circulatory methods
- Have open-ended vessels which might be stuffed with blood-like fluid known as haemolymph.
- The haemolymph is pumped by a easy tube coronary heart into the physique cavity.
- Haemolymph flows straight over organs.
- Trade of vitamins and wastes happens when cells and tissues work together with the haemolymph.
- Haemolymph does NOT transport gases.
- This method is usually seen in invertebrates comparable to bugs.
Closed circulatory methods
- A coronary heart pumps blood containing gases, vitamins and wastes across the physique via closed vessels.
- Arteries carry oxygenated blood away from the center.
- Veins carry de-oxygenated blood from the physique again to the center.
- Capillaries join veins and arteries collectively. That is the place nutrient and waste change happen.
- This method is usually seen in vertebrates comparable to mammals.
