Welcome to your Biology Model Exam Questions for Grade 12
The questions are from grade 9 &10 lessons.
Choose the best answer from the given alternatives and blacken your answer on the answer sheet. You are given a total of 90 questions and you are expected to attempt each question.
1.
Which of the following is not true about human chromosome?
2.
If an organism’s diploid cell (2n = 80) undergoes meiosis cell division. How many chromosomes can be found in each daughter cell at the end of meiosis II?
3.
Which of the following pairs of organisms are biologically more related than others from point of classification?
4.
The smallest classification unit which can include: Starfish, crayfish, catfish and jellyfish is:
5.
Which one of the following statements is correct?
6.
Which structure of the human eye controls the amount of light entering the eye by adjusting the size of the pupil?
7.
Some reptiles in temperate regions undergo into state of deep sleep for a longer time during cold winter season. This kind of adaptation is known as:
8.
Which of the following is the correct order in which vibration caused by sound wave pass from the outer to the inner ear?
9.
The part of ear that is responsible to maintain our body balance is:
10.
Which groups of animals have a relatively constant body temperature?
11.
Which one of the following choices contains only physiological method of temperature regulation?
12.
The human eye accommodates for distant and near objects primary by changing the:
13.
Part of the fore brain which is involved in homeostasis function such as thermoregulatory center is:
14.
The alternative forms of information of a gene are known as:
15.
A person under the increasing influence of alcohol loses first the ability to think, and his ability to walk straight and to breathe normally respectively. Which parts of the human brain are affected respectively?
16.
All are correct about the human nervous system EXCEPT
17.
Which one of the following is not the function of liver?
18.
Organisms with least similarity and more diversity belong to the same:
19.
Which of the following is important to make tiny hole on injera that is its typical feature?
20.
Which one of the following increases the rate of heat loss when the internal body temperature increases?
21.
Which one of the following is incorrect about human urinary system?
22.
One of the following happen when you consumed increased amount of water?
23.
Which one is true about dicotyledonous plants?
24.
A seedless vascular plant which produces spores on the underside of the fronds is classified into:
25.
Which one of the following plant divisions contains seedless and non-vascular plants?
26.
Which one of the following methods is used to reduce the rate of heat loss during cold time?
27.
Which of the following is incorrect about characteristics of a plant that belongs to one of the four plant divisions?
28.
Which of the following area is not part of the nephron?
29.
Which of the following substance present in the glomerular filtrate but normally it is completely reabsorbed as the filtrate passes along the tubule?
30.
30. Which one of the following is not excretory organ?
31.
All the following can be found both in glomerular filtrate and in the blood vessels except:
32.
Which of the following is true about panting of a dog?
33.
Which one of the following is poikilothermic animal?
34.
Which one of the following is behavioral method of temperature regulation?
35.
The part of nephrone where ultrafiltration occurs is:
36.
The tubular structure which carries urine to the urinary bladder is:
37.
If you know two given organisms are classified in the same order, you become sure that they belong to the same:
38.
If you cut and diagnose the content of first coiled tubule of nephron which one cannot be found in its content?
39.
The process of maintaining water and salt balance of our body is called:
40.
Which one of the following is process of maintaining relatively constant internal environment?
41.
Of the following hormones, which one is not correctly matched with its function?
42.
Which one of the following is considered as both endocrine and exocrine gland?
43.
HIV infection can NOT be detected before 3-12 weeks with HIV test. This is because:
44.
Which of the following is a physiological method of temperature regulation in homoiotherms?
45.
Glomerulus is a mass of:
46.
A contraception method that involves burying small silicon capsules containing female hormones under the skin is:
47.
An animal whose internal temperature varies along with that of the environmental temperature is known as
48.
Which of the following adaptation mechanisms is used by animals in the cold climate? They have:
49.
Which of the following structures of the urinary system connects the kidney with the bladder?
50.
In which part of the nephron does ultrafiltration take place?
51.
Which one is recently discovered type of taste in human?
52.
The central nervous system is made of:
53.
Which of the following human eye problem is not correctly matched with its possible cause?
54.
Which one of the following is incorrect about human ear?
55.
What happens if an animal cell is kept in very concentrated salt solution?
56.
This item is based on the comparison between meiosis and mitosis given below in the table.
Which of the above comparison is incorrect?
57.
Which of the following contraceptive methods prevents the implementation of the early embryo?
58.
Which of the following physiological methods of temperature regulation occurs in homoeothermic animals when temperature begins to fall?
59.
Which of the following characteristics is common to all animals?
60.
Which of the following physiological methods has a cooling effect to the body?
61.
Which of the following organisms is odd to the others based on its classification?
62.
If you realized that a given unicellular organism lacks nuclear membrane, into which kingdom it can be classified?
63.
Which one of the following animals produces relatively much urea in its urine?
64.
Which of the following is the most responsible for the formation of the glomerular filtrate?
65.
Suppose 800 pea plants are produced from Tt Tt cross, how many of them are expected to be pure tall?
66.
During which stages of mitosis sister chromatids line up at the equatorial plane of the cell?
67.
Which one of the following is incorrect about mitosis?
68.
Which of the following is not inheritable trait in human?
69.
The map of chromosomes of the nucleus of a single cell is called:
70.
Suppose a sample of fluid from the middle region of a nephron is analyzed for its contents, normally proteins are not present. This is because:
71.
In which part of the kidney do we find the Bowman’s capsule of a nephron?
72.
Filtrate moves into the Bowman’s capsule from the:
73.
Which of the following is means of reducing heat loss from the body?
74.
Which one of the following is the recessive character of garden pea (Pisum sativa)?
75.
Which one of the following is incorrect about structure of human eye?
76.
The hallow bony part of the skull that encloses human brain is
77.
What is the main cause of diabetes mellitus?
78.
Which one of the following pairs of hormones works antagonistically to regulate blood glucose level?
79.
Of the following hormones, which one is incorrectly matched with its function?
80.
Which one of the following is endocrine gland?
81.
Which of the following is produced by lactic fermentation?
82.
The hormone its deficiency results in stunted (slow) mental and physical development in children is:
83.
A technique which is useful to identify whether a given dominant trait is homozygous or heterozygous is:
84.
Which one of the following endocrine gland is also called master gland?
85.
Which of the following is incorrect match between endocrine glands and their hormones?
86.
The gland that enlarges into goiter as a result of iodine deficiency is:
87.
How are hormones able to find their target cells?
88.
Which one of the following nerves carries sensory information from the nose to the brain?
89.
Which one of the following is the main change produced by adrenalin hormone?
90.
Which one of the following is found in the glomerular filtrate?
91.
Which organ of human body breaks down extra amino acids, regulates blood sugar, produces bile and detoxifies toxic substance?
