Multiple Choice QuestionsMatch the following Columns.
| Column I (organism) | Column II (Connecting Link) |
| A. Echina | 1. Between Annelida and Mollusca |
| B. Peripatus | 2. Between Reptiles and Mammals |
| C. Neopilina | 3. Between Annelida and Arthropoda |
| D. Protopterus | 4. Between Pisces and Amphibian |
A – 4; B – 3; C – 2; D – 1
A – 2; B – 3; C – 1; D – 4
A – 3; B – 1; C – 2; D – 4
A – 4; B – 2; C – 1; D – 3
B.
A – 2; B – 3; C – 1; D – 4
| Organism | Connecting Link |
| Echidna | Between Reptile and Mammals |
| Peripatus | Between Annelida and Arthropoda |
| Neopilina | Between Annelida and Mollusca |
| Protopterus | Between Pisces and Amphibia. |
Source of commercial chewing gum latex is
Hevea brasiliensis
Carica papaya
Ficus elastica
Achras sapota
D.
Achras sapota
The latex of some plants is commercially important such as
(i) Source of commercial rubber is latex of Hevea brasiliensis, Ficus elastica, Cryptostegia. Maniho glaziou
(ii) Source of chewing or chickle gum is latex of Achras sapota
(iii) Source of enzyme papain is latex of Carica papaya
In cardiac cycle maximum time is taken by
Atria systole
Atria diastole
Ventricle systole
Ventricle diastole
B.
Atria diastole
The cardiac cycle is the event during, which one heartbeat or one cycle of contraction (systole) and relaxation (diastole) of cardiac muscle occurs. A cardiac cycle consists of systole and diastole of atria and systole and diastole of ventricles. The time of cardiac cycle is in reverse ratio of the rate of heartbeat. In man, the heart rate is about 72 times/train, therefore time of a cardiac cycle is 60/72 -0.8 sec approx\
| Time Taken | Atria | Ventricle | ||
| Systole | Diastole | Systole | Diastole | |
| 0.1 sec | 0.7 sec | 0.03 sec | 0.5 sec | |
Match the following Columns.
| Column I (Cell Organelle) | Column II (Discovered by) |
| A. Ribosome | 1. Fontana |
| B. Nucleolus | 2. Tolbert and Yamazaki |
| C. Glyoxysome | 3. Palade |
| D. Peroxisome | 4. Beevers |
A – 1; B – 4; C – 2; D – 3
A – 3; B – 4; C – 1; D – 2
A – 1; B – 3; C – 2; D – 4
A – 3; B – 1; C – 4; D – 2
D.
A – 3; B – 1; C – 4; D – 2
| Cell Organelle | Discovered by |
| Ribosome | Palade |
| Nucleolus | Fontana |
| Glyoxysome | Beevers |
| Peroxisome | Tolbert and Yamazaki |
A horse and a donkey can breed to produce mule which is an infertile animal. The infertility is because horse and donkey belong to different.
Class
Order
Species
Genus
C.
Species
A horse (Equus ferus caballus) and a donkey (Equus africanus asinus) can breed to produce mule, which is an infertile animal. The infertility is because horse and donkey belong to different species. Mule are medium weight animals that are more hardworking and long-lived than horse and donkey.
The Sub-units of 80S ribosome will be
40S, 40S
60S, 40S
60S, 20S
55S, 25S
B.
60S, 40S
60S and 40S are sub-units of eukaryotic (80S) ribosomes.
Vegetative propagation of Bryophyllus takes place through
Bulbil
Corms
Leaf buds
Eyes
C.
Leaf buds
Vegetative reproduction in Bryophyllum takes place through leaf buds.
Which one of the following is not correct pair of type of cancer and origin place?
Benign tumour – Non-cancerous tumour
Carcinomas – Cancer of epithelial tissues
Lymphomas – Haematopoietic cells tumour
Sarcomas – Cancer of glands (secretory tissues)
D.
Sarcomas – Cancer of glands (secretory tissues)
Sarcomas cancer originate in lymphatic tissues,connective tissues, muscles and bones.
Pyloric sphincter guards the opening between
Stomach and Duodenum
Cardia and Fundus
Oesophagus and Stomach
Fundus and Pylorus
A.
Stomach and Duodenum
Pyloric sphincter guards are the opening between the pylorus of a stomach and the duodenum of the small intestine. It periodically permits partially digested food to leave the stomach and enter the duodenum.
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