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Others Trial 2025 Biology Kertas 1 · YIK

1
The information below is about an organelle. - Consists of ribonucleic acid (RNA) and proteins - Can be found freely suspended in the cytoplasm What is this organelle?
2
Diagram 1 shows a type of organ. Which organelle is abundantly found in the tissue of that organ?
3
Collagen is needed to form Q tissue in humans. What is Q tissue?
4
In an experiment using a visking tube, which transport process cannot be studied? I Osmosis II Simple diffusion III Facilitated diffusion IV Active transport
5
In the process of making salted fish, the fish is covered with a lot of salt. What is the condition of the fish cells when observed under a microscope?
6
Which statement is incorrect about the importance of water in cells?
7
Which of the following proteins functions to fight infection?
8
Which of the following is a characteristic of polysaccharide compounds? I All polysaccharides are non-reducing sugars II Polysaccharide are water-insoluble III Polysaccharide cannot be crystallised IV Polysaccharide sweet to taste
9
Which of the following matches is correct? | | Anabolism | Catabolism | |---|---|---| | A | Food digestion | Assimilation | | B | Breakdown of glucose | Production of glucose | | C | Amino acid become polypeptide | Polypeptide become amino acid | | D | Does not require energy | Requires energy |
10
What is enzyme immobilisation technology?
11
The following statement refers to a general property of enzymes. > Enzymes are only required in small quantities Which of the following supports the statement?
12
In which cells does the cell cycle occur?
13
Interphase is made up of the G1 phase, S phase and G2 phase. What happen in G1 phase, S phase and G2 phase? | | G1 | S | G2 | |---|---|---|---| | A | Synthesis of proteins and organelles | High ATP synthesis rate | DNA synthesis and replication | | B | DNA synthesis and replication | Synthesis of proteins and organelles | High ATP synthesis rate | | C | Synthesis of proteins and organelles | DNA synthesis and replication | High ATP synthesis rate | | D | High ATP synthesis rate | DNA synthesis and replication | Synthesis of proteins and organelles |
14
Which of the following cannot be used as a respiration substrate?
15
During vigorous activity, muscle cells carry out fermentation and produce lactic acid. What is the main reason for this condition?
16
Diagram 2 shows the respiratory structure of an insect. What are the characteristics of tracheole in the respiratory system of an insect?
17
Diagram 3 shows a frog. Which is true about the breathing mechanism in frogs? | | Nostrils | Floor of bucco - pharyngeal cavity | Lungs | |---|---|---|---| | A | Open | Lowers | Inflate | | B | Close | Rises | Deflate | | C | Close then open | Rises then lowers | Deflate | | D | Open then close | Lowers then rises | Inflate |
18
During the digestion of lipids that occurs in the duodenum, Q is involved. What is Q and the justification for its presence? | | Q | Justification for its presence | |---|---|---| | A | Bile salt | Decrease surface area for enzyme action | | B | Bile salt | Increase surface area for enzyme action | | C | Hydrochloric acid | As a medium for pepsin enzyme reactions | | D | Hydrochloric acid | As a medium for trypsin enzyme reactions |
19
The information below was recorded to determine the energy value of a food sample. Mass of water = 20.0g Mass of food sample = 1.5g Initial temperature of water = 28°C Final temperature of water = 60°C The specific heat capacity of water is 4.2 Jg^-1^ ° C^-1^. Determine the energy value in the food sample.
20
Diagram 4 shows the blood circulatory system of an animal. Which statement is correct for this system? I Closed and single circulatory system II Has two chambers, one atrium and one ventricle III Blood flows into the heart twice IV The exchange of respiratory substances and gases occurs in the systemic capillaries
21
What is the role of luteinising hormone (LH)?
22
Which of the following tissues is strengthened by lignin deposition?
23
Diagram 5 shows the growth curve of a plant. The following information describes the plant. Breaks down stored food during respiration to produce energy Unable to carry out photosynthesis process Which of the following zones corresponds to the information about the growth stage of the plant?
24
Two healthy plants, X and Y were treated as follows: Plant X Leaves exposed to radioactive carbon dioxide for a short period of time Plant Y Plant roots supplied with radioactive water for a short period of time Where can radioactive material be detected in the chloroplasts of plants X and Y? | | Plant X | Plant Y | |---|---|---| | A | Outer membrane | Stroma | | B | Thylakoid | Stroma | | C | Stroma | Thylakoid | | D | Thylakoid | Outer membrane |
25
Which of the following is not true about the application of greenhouses? I Carbon dioxide concentration 0.01% inside a greenhouse II The environment inside is more or less the same as the environment outside III The temperature inside the greenhouse is set above 40 °C IV Plants are exposed to light throughout the day
26
Most of the dry mass of plants is made up of macronutrient X. What is X?
27
In an experiment to study the transpiration process, 4 samples of hibiscus plant shoots were weighed and their initial weight recorded. Then all shoots were given the following treatment: P - All leaves on the shoots are removed Q - The upper surface of the leaf is wiped with vaseline R - The lower surface of the leaf is wiped with vaseline S - Both the upper and lower surfaces of the leaves are wiped with Vaseline After treatment, all the hibiscus shoots were left outside the laboratory for 5 hours, starting at 9 am. After 5 hours, all the shoots were reweighted to obtain the final weight. The original weight of all the shoots was 25.0 g. Which of the following is the expected final weight reading for the 4 samples of all the shoots? | | P | Q | R | S | |---|---|---|---|---| | A | 20.3 g | 22.0 g | 26.4 g | 20.3 g | | B | 24.7 g | 20.9 g | 23.8 g | 24.4 g | | C | 25.0 g | 18.6 g | 22.7 g | 17.8 g | | D | 19.5 g | 21.2 g | 19.3 g | 20.1 g |
28
What is expected to be obtained if a plant shoot is left to grow in the dark?
29
Diagram 6 shows a cross section of a flower. In which part of the meiosis process does it occur?
30
Which structure will develop into a seed?
31
Diagram 7 shows a type of fruit. What is the type of the fruit?
32
Which of the following is a mesophyte plant?
33
What system is used to name organisms?
34
Diagram 8 shows a phylogeny tree for the evolutionary relationship of a group of organisms. Which of the following organisms have the closest and most furthest evolutionary relationships? | | Closet relationship | Furthest relationship | |---|-----------------------------------|-----------------------------------| | A | Monkey - Snake | Fish - Bird | | B | Fish - Bird | Snake - Fish | | C | Snake - Fish | Mosquito - Fish | | D | Snake - Frog | Monkey - Snake |
35
Which of the following does not cause thermal pollution?
36
Diagram 9 shows the state of homologous chromosomes. What genotype is represented by the 'Bb' or 'bB'?
37
A man who has the D antigen (heterozygous) on his red blood cells marries a woman who has red blood cells without the antigen, D. What is the probability that their child will have red blood cells without the antigen, D?
38
Which of the following correctly explains the term "genome"?
39
Which of the following techniques can be used to identify human gender? I Gene therapy II Gene cloning III Amniocentesis IV. DNA profiling
40
Which of the following is an advantage of transgenic plants? I Produces resistant weeds in agricultural areas II Produces plants that are more resistant to herbicide toxins III Reducing weed species in agricultural areas IV Increase cross-pollination between species
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