Questions
Which of the following is/are not associated with the human male reproductive system?
- Bulbourethral glands
- Prostate gland
- Bartholin glands
- Seminal vesicles
Parkinson’s disease is caused by degeneration of brain neurons that are involved in movement control by making use of the neurotransmitter
- norepinephrine
- acetylcholine
- GABA
- dopamine
The in-foldings of the inner mitochondrial membrane are called
- cristae
- oxysomes
- grana
- cisterns
Which alga is known for the biological activity called bioluminescence?
- Noctiluca
- Spirogyra
- Cyclotella
- Chlorella
- Fucus
The receptor pigment for light in the eyes of all land vertebrates is
- chlorocruorin
- haemoglobin
- melanin
- rhodopsin
Which of the following groups of mammals is considered to be toothless?
- Echidna, armadillos and platypus
- Whales, marsupials, anteaters and platypus
- Bat, whales, marsupials and echidna
- Echidna, whales, bat and platypus
Which enzyme in duodenum activates pancreatic enzyme trypsinogen?
- Rennin
- Chymotrypsin
- Carboxypeptidase
- Enteropeptidase
Ribulose–1, 5 diphosphate carboxylase is the initial enzyme of
- Krebs cycle
- glycolysis
- Calvin’s cycle
- light reaction
An ovule which becomes curved, so that the nucellus and embryo sac lie at right angles to the funicle is known as
- hemitropous
- campylotropous
- anatropous
- orthotropous
During cell division, one of the cell organelles, instead of being equally divided between the two daughter cells at cytokinesis, becomes dispersed into small vesicles at prophase to reassociate at telophase. The organelle is
- mitochondria
- endoplasmic reticulum
- golgi apparatus
- centriole
Which of the following enzymes are most commonly used in ELISA for the detection of antibodies formed against an antigen?
- RNase and DNase
- Alkaline phosphatase and peroxidase
- Catalase and acid phosphatase
- Lysozymes and isomerase
Match list I and list II.
| List I |
<font face="Arial" size="2"> <b>(Cell types in the body of the Sycon)</b></font>|<font face="Arial" size="2"> <b>List II</b></font>
<font face="Arial" size="2"> <b>(Characteristics/location of cells types of Sycon)</b></font>|
| I. Pinacocytes | 1. Cell having whip-like flagellum |
| II. Choanocytes | 2. Cells covering the outer surface of the body |
| III. Scleroblasts | 3. Large amoeboid cells with distinct nucleoli in nuclei
|
| IV. Archaeocytes | 4. Cells developing spicules |
| | 5. Cells constituting connecting tissues |
- I - 2, II - 1, III - 4, IV - 3
- I - 5, II - 1, III - 2, IV - 4
- I - 1, II - 2, III - 5, IV - 3
- I - 3, II - 2, III - 1, IV - 4
The chief role of nucleolus in a nucleus is
- organisation of chromosomes
- replication of DNA
- synthesis of ribosomes
- chromatid separation
What is the name given for an association of two species where one benefits and the other remains unaffected or unharmed?
- Parasitism
- Symbiosis
- Commensalism
- Predation
Match the following:
| Column I | Column II |
| A. Influenza | i. Arbovirus (RNA virus) |
| B. Common cold | ii. Rubella virus (RNA virus) |
| C. German measles | iii. Myxovirus A, B and C (RNA virus) |
| D. Yellow fever | iv. Rhinovirus (RNA virus) |
- A – iv, B – iii, C – i, D – ii
- A – iii, B – iv, C – ii, D – i
- A – iii, B – i, C – iv, D – ii
- A – iii, B – iv, C – i, D – ii