A fresh set of 20 random questions is generated every time you open this page and every time you refresh it.For each of the following multiple choice questions, choose the most appropriate answer :
1. The control centres that regulate hunger, water balance and body temperature are located in the
A. pons
B. medulla oblongata
C. thalamus
D. hypothalamus
2. The oxygen that keeps is a product of photosynthesis. It comes from
A. carbon dioxide
B. carbonates absorbed from soil
C. oxides of mineral elements
D. water
3. The two kidneys lie:
A. At the level of ovaries
B. At the same level
C. Left kidneyat a higher level than the ight one
D. Right kidneyat a higher level than the left one
4. The comers of the cells of collenchyma tissue in plants are thickened due to the deposition of :
A. Lignin and Suberin
B. Suberin and Cutin
C. Cellulose and Peetin
D. Chitin and Lignin
5. Nucleic acids means
A. Amajor components of chromosomes
B. Polynucleotide of structural units known as nucleotides
C. Small gene carrying bodies in the nucleiof complex cells
D. Both A & B
6. The hydrogen bonds between adenine and guanine are
A. 2
B. 3
C. 1
D. 0
7. Two bacteria found to be very useful in genetic engineering experiments are.....
A. Nitrosomonas and Klebsiella
B. Escherichia and Agrobacterium
C. Nitrobacter and Azotobacter
D. Rhizobium and Diplococcus
8. What is called the area which is remain around the core zone of biosphere region ?
A. Buffer
B. Transition zone
C. Developed zone
D. Peripherial zone
9. Vital capacity of lung is equal to
A. IRV+ERV+TV
B. IRV+ERV+TV-RV
C. IRV+ERV+TV+RV
D. IRV+ERV
10. Nucleolus is
A. Located in nucleus,Possess r-RNA and chromatin and possess a spherical structure
B. Rod like structure present near nucleus
C. Sphericalstructure present in cytoplasm near nucleus
D. None of these
11. Which one of the following floats in the cytoplasm of the vegetative cell ?
A. Male gamete
B. Generatic cell
C. Female gamete
D. Microspore
12. Which of the following organic substance is growth inhibitor ?
A. IBA
B. ABA
C. IAA
D. GA
13. Byhow manycriteria, living organisms have been classified into five kingdom
A. Two
B. Four
C. Five
D. Three
14. Which is part of vulva is considered equivalent to the male penis
A. Clitoris
B. Hymen
C. Mons
D. Pubis
15. Krebs cycle is
A. Oxidation of glucose to alcohol and water
B. Oxidation of acetyl CoA to carbon dioxide and water involving electron transport
C. Complete oxidation of acetyl CoA without electron transport
D. Complete reduction of acetyl CoA to carbon dioxide and water
16. The glomenuli are continued to the
A. Medulla
B. Calyces
C. Cortex
D. REnal Pelvis
17. t - RNA attaches aminoacid at its
A. 31 end
B. 51 end
C. Anticodon
D. Loop
18. In which of the following plants are included in anyfood chain?
A. Primary Producer
B. primarycomsumer
C. Primarypredator & producer
D. Primary decomposar
19. Which type of pollution causes altered breathing pattern, increased heartbeats and sleeplessness?
A. Noise pollution
B. soil pollution
C. Radioactive pollution
D. Thermalpollution
20. Which of the following statement is true for mitosis ?
A. Cytokinesis and karyokinesis occur together
B. Cytokinesis and karyokinesis are random
C. Cytokinesis preceedes karyokinesis
D. Karyokinesis preceedes cytokinesis
Dr K Chaudhry 5 Alpha Inmternational City, Fatehabad 125050 M: 9810570740, 9810571993facebook.com/doctorkc