Font size
WorksheetsINTRODUCTION TO SB015 BIOLOGY
Total questions: 11
Worksheet time: 17mins
One molecule of water can form _________ bonds with another ___________ molecules of water
hydrogen bond, four
hydrogen bond, two
ionic bond, four
ionic bond, two
1. Which of the following is a characteristic of a prokaryotic cell?
Cellulose cell wall
Mitochondrion
Absence of nucleus
Large subunit (80S) ribosome
This organelle is the site for photosynthesis
(a)
How many stages are in mitosis?
1
2
3
4
Humans have ________ pairs of chromosomes.
21
23
46
None of the above
Gene mutation MOST OFTEN occurs during:
DNA repair
DNA replication
Cell division
DNA transcription
Tick ALL examples of physical mutagens
X-ray
Gamma-ray
UV rays
Colchicine
What name is given to mature sperm?
Spermatocyte
Spermatozoa
Spermatogonium
Spermatogonia
Which structure in male reproductive system produce sperm?
Scrotum
Testis
Urethra
Seminal Vesicle
The menstrual cycle repeats every?
Month
28 days
Week
Year
