SCIENCE QUIZ 3 BIOLOGY

1. Which of the following is found within mitochondria?
A) cristae B) Golgi apparatus C) endoplasmic reticulum D) patella
A) CRISTAE
2. When two bacteria exchange genetic information, what is the process called?
CONJUGATION
3. In DNA, adenine pairs with thymine. But in RNA, what replaces thymine?
URACIL
4. What on earth does a restriction enzyme do?
CUTS DNA AT SPECIFIC SITES
5. Which of the following kinds of genes causes cancer (or so goes the current theory) ?
A) oncogenes B) 'jumping' genes C) carcinogens D) tumor-suppressor genes
A) ONCOGENES
6. What is the scientific name of the fruit fly, an organism much beloved by geneticists everywhere?
DROSOPHILA MELANOGASTLE
7. Who used a flask with a curved neck to prove that spontaneous generation did not occur in a broth?
PASTEUR
8. What does 'DNA' stand for?
DEOXYRIBONUCLEIC ACID
9. What organ stores bile, which is needed to digest lipids (including fats)?
GALL BLADDER
10. The process of converting a DNA sequence to an mRNA message is called transcription. What is the process of converting an mRNA molecule to a protein (through the mediation of tRNA) called?
TRANSLATION
11. What term describes the movement of water molecules across a selectively-permeable membrane from an area of high concentration to an area of low concentration?
OSMOSIS
12. Which of these organelles is found in plant cells but not animal cells?
A) Mitochondria B) Golgi Apparatus C) Endoplasmic Reticulum D) Chloroplasts
D) CHLOROPLASTS
13. Which of these elements is not found in carbohydrates?
A) Hydrogen B) Carbon C) Nitrogen D) Oxygen
C) NITROGEN
14. Which of these is not a biological enzyme?
A) Amylase B) Protease C) Cellulase D) Pepsiase
D) PEPSIASE
15. How many carbon atoms are found in a molecule of glucose?
SIX
16. What substance is used to identify the prescence of starch?
IODINE
17. How many daughter cells are produced during the second stage of meiosis?
FOUR
18. What substance does the Benedict's test identify?
REDUCING SUGARS
19. What do enzymes do?
SPEED UP, SLOW DOWN THE RATE OF REACTION
20. Which of these is not the name of a chamber found in the heart?
A) Right Ventricle B) Right Atrium C) Aorta D) Left Ventricle
C) AORTA
21. In which of these are you most likely to find chloroplasts?
A) Stone cells B) Guard cells C) Tracheids D) Companion cells
B) GUARD CELLS
22. Which of the following does not form part of the chloroplasts?
A) Tonoplast B) Thylakoid C) Granum D) Lamellae
A) TONOPLAST
23. Which of the following is found in both plant and animal cells?
A) Cell wall B) Chromoplasts C) Chromosomes D) Leucoplasts
B) CHROMOSOMES
24. Which of the following bone structures does not form part of the human skull?
A) Facial bones B) Atlas C) Mandible D) Cranium
B) ATLAS
25. Which of the following cannot be associated with the phloem of a plant?
A) Sieve Tubes B) Organic food C) Tracheids D) Companion cells
C) TRACHEIDS
26. Which of the following is the best example of mutualism?
A) Birds using trees to build nests B) Fleas on a dog C) Insects on flowers D) A cheetah catching an impala
C) INSECTS ON FLOWERS
27. Which one of the following does not form part of the pelvic girdle?
A) Pubis B) Ischium C) Ilium D) Clavicle
D) CLAVICLE
28. Which of the following's function is to synthesise protein and enzymes?
A) ER B) Golgi Apparatus C) Ribosomes D) Centrioles
C) RIBOSOMES
29. An inorganic constituent of protoplasm is-
WATER
30. Which of these is a compound which is normally not found in an animal cell?
A) Sugar B) Water C) Cellulose D) Fats
C) CELLULOSE
A) cristae B) Golgi apparatus C) endoplasmic reticulum D) patella
A) CRISTAE
2. When two bacteria exchange genetic information, what is the process called?
CONJUGATION
3. In DNA, adenine pairs with thymine. But in RNA, what replaces thymine?
URACIL
4. What on earth does a restriction enzyme do?
CUTS DNA AT SPECIFIC SITES
5. Which of the following kinds of genes causes cancer (or so goes the current theory) ?
A) oncogenes B) 'jumping' genes C) carcinogens D) tumor-suppressor genes
A) ONCOGENES
6. What is the scientific name of the fruit fly, an organism much beloved by geneticists everywhere?
DROSOPHILA MELANOGASTLE
7. Who used a flask with a curved neck to prove that spontaneous generation did not occur in a broth?
PASTEUR
8. What does 'DNA' stand for?
DEOXYRIBONUCLEIC ACID
9. What organ stores bile, which is needed to digest lipids (including fats)?
GALL BLADDER
10. The process of converting a DNA sequence to an mRNA message is called transcription. What is the process of converting an mRNA molecule to a protein (through the mediation of tRNA) called?
TRANSLATION
11. What term describes the movement of water molecules across a selectively-permeable membrane from an area of high concentration to an area of low concentration?
OSMOSIS
12. Which of these organelles is found in plant cells but not animal cells?
A) Mitochondria B) Golgi Apparatus C) Endoplasmic Reticulum D) Chloroplasts
D) CHLOROPLASTS
13. Which of these elements is not found in carbohydrates?
A) Hydrogen B) Carbon C) Nitrogen D) Oxygen
C) NITROGEN
14. Which of these is not a biological enzyme?
A) Amylase B) Protease C) Cellulase D) Pepsiase
D) PEPSIASE
15. How many carbon atoms are found in a molecule of glucose?
SIX
16. What substance is used to identify the prescence of starch?
IODINE
17. How many daughter cells are produced during the second stage of meiosis?
FOUR
18. What substance does the Benedict's test identify?
REDUCING SUGARS
19. What do enzymes do?
SPEED UP, SLOW DOWN THE RATE OF REACTION
20. Which of these is not the name of a chamber found in the heart?
A) Right Ventricle B) Right Atrium C) Aorta D) Left Ventricle
C) AORTA
21. In which of these are you most likely to find chloroplasts?
A) Stone cells B) Guard cells C) Tracheids D) Companion cells
B) GUARD CELLS
22. Which of the following does not form part of the chloroplasts?
A) Tonoplast B) Thylakoid C) Granum D) Lamellae
A) TONOPLAST
23. Which of the following is found in both plant and animal cells?
A) Cell wall B) Chromoplasts C) Chromosomes D) Leucoplasts
B) CHROMOSOMES
24. Which of the following bone structures does not form part of the human skull?
A) Facial bones B) Atlas C) Mandible D) Cranium
B) ATLAS
25. Which of the following cannot be associated with the phloem of a plant?
A) Sieve Tubes B) Organic food C) Tracheids D) Companion cells
C) TRACHEIDS
26. Which of the following is the best example of mutualism?
A) Birds using trees to build nests B) Fleas on a dog C) Insects on flowers D) A cheetah catching an impala
C) INSECTS ON FLOWERS
27. Which one of the following does not form part of the pelvic girdle?
A) Pubis B) Ischium C) Ilium D) Clavicle
D) CLAVICLE
28. Which of the following's function is to synthesise protein and enzymes?
A) ER B) Golgi Apparatus C) Ribosomes D) Centrioles
C) RIBOSOMES
29. An inorganic constituent of protoplasm is-
WATER
30. Which of these is a compound which is normally not found in an animal cell?
A) Sugar B) Water C) Cellulose D) Fats
C) CELLULOSE