Latiahan Soal IPA Kelas VIII (Bagian 1)
Pilihlah salah satu jawaban yang paling tepat
- 1.
Pernyataan yang tidak benar mengenai gerak hewan dan gerak tumbuhan adalah …
- A.
Gerak hewan jelas dan dapat berpindah tempat sedangkan gerak tumbuhan terbatas dan biasanya tidak berpindah
- B.
Hewan dapat menggerakkan anggota tubuhnya sedangkan gerak pada tumbuhan hanya dilakukan oleh bagian tertentu
- C.
Gerak hewan aktif sedangkan gerak tumbuhan pasif
- D.
Gerak hewan pasif sedangkan gerak tumbuhan aktif
Correct Answer
A. Gerak hewan jelas dan dapat berpindah tempat sedangkan gerak tumbuhan terbatas dan biasanya tidak berpindahExplanation
The correct answer is "gerak hewan jelas dan dapat berpindah tempat sedangkan gerak tumbuhan terbatas dan biasanya tidak berpindah". This statement is incorrect because it states that animal movement is clear and can change location, while plant movement is limited and usually does not change location. In reality, plants are capable of movement, such as the bending of stems towards light (phototropism) or the closing of leaves in response to touch (thigmotropism). Therefore, the statement does not accurately represent the abilities of both animal and plant movement.Rate this question:
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- 2.
Gerak sulur tumbuhan yang membelit benda tertentu pada saat bersinggungan disebut …
- A.
Kemotropisme
- B.
Seismonasti
- C.
Tigmotropisme
- D.
Niktinasti
Correct Answer
C. TigmotropismeExplanation
Tigmotropisme adalah gerakan sulur tumbuhan yang membelit benda tertentu saat bersinggungan.Rate this question:
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- 3.
Gerak fototropisme yang benar ditunjukkan oleh gambar …
- A.
1
- B.
2
- C.
3
- D.
4
Correct Answer
B. 2 -
- 4.
Yang bukan merupakan contoh gerak lurus berubah beraturan adalah …
- A.
Kelereng menggelinding pada bidang miring
- B.
Bola dilempar ke atas
- C.
Kelapa jatuh dari tangkainya
- D.
Mobil yang sedang berjalan
Correct Answer
D. Mobil yang sedang berjalanExplanation
The other options mentioned in the question involve objects or motions that exhibit regular and predictable changes. For example, a marble rolling on an inclined plane, a ball being thrown upwards, and a coconut falling from a stem can all be described as examples of motion that follows a regular pattern. However, a car moving on a road does not follow a regular and predictable pattern of motion, as it can change its speed, direction, and stop at any moment. Therefore, a car in motion is not an example of uniform motion.Rate this question:
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- 5.
Perhatikan gambar penampang melintang batang berikut :floem ditunjukkan oleh gambar nomor…
- A.
4
- B.
3
- C.
2
- D.
1
Correct Answer
C. 2Explanation
The correct answer is 2 because it is indicated in the given diagram that the cross-section of the stem represents the phloem.Rate this question:
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- 6.
Yang tidak termasuk fungsi akar pada tumbuhan adalah …
- A.
Menyerap air dan mineral dari dalam tanah
- B.
Menegakkan tubuh tunbuhan
- C.
Tempat menyimpan cadangan makanan
- D.
Sarana pengangkutan air dan mineral
Correct Answer
D. Sarana pengangkutan air dan mineralExplanation
The correct answer is "sarana pengangkutan air dan mineral". This is because the function of roots in plants includes absorbing water and minerals from the soil, anchoring the plant's body, and storing food reserves. However, roots do not serve as a means of transporting water and minerals within the plant. That role is fulfilled by specialized tissues called xylem and phloem.Rate this question:
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- 7.
Perhatikan gambar penampang melintang daun berikut :Tempat berlangsungnya fotosintesis ditunjukkan oleh gambar nomor …
- A.
1
- B.
2
- C.
3
- D.
1
Correct Answer
B. 2Explanation
The correct answer is 2 because in the given cross-section of a leaf, the area where photosynthesis occurs is indicated by the number 2. This is typically the mesophyll layer of the leaf, which contains chloroplasts and is responsible for capturing sunlight and converting it into energy through photosynthesis.Rate this question:
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- 8.
Perhatikan ciri-ciri organ tumbuhan berikut :Pernyataan yang benar adalah ...
- A.
1 dan 2
- B.
1 dan 3
- C.
2 dan 3
- D.
3 dan 4
Correct Answer
C. 2 dan 3Explanation
The correct answer is 2 dan 3. This means that the correct statement is that the characteristics of plant organs are 2 and 3. However, without knowing what the characteristics of plant organs 2 and 3 are, it is not possible to provide a specific explanation for why this answer is correct.Rate this question:
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- 9.
Fungsi kambium adalah …
- A.
Memperbesar batang
- B.
Mengangkut zat makanan dari daun kesluruh bagian tubuh tumbuhan
- C.
Tempat penyimpanan cadangan makanan
- D.
Melindungi bagian dalam batang
Correct Answer
A. Memperbesar batangExplanation
The correct answer is "memperbesar batang". The function of the cambium is to increase the size of the stem by producing new cells that differentiate into xylem and phloem tissues. This allows for the growth and expansion of the stem, contributing to the overall growth of the plant.Rate this question:
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- 10.
Perhatikan gambar tahapan percobaan menyelidiki adanya fotosintesis berikut.Daun direbus dengan air mendidih (gambar A) agar …
- A.
Daun berubah warna
- B.
Kuman yang menempel mati
- C.
Sel-sel daun mati
- D.
Mengaktifkan enzim
Correct Answer
C. Sel-sel daun matiExplanation
The correct answer is "sel-sel daun mati" because when the leaf is boiled, the high temperature causes the cells in the leaf to die. This is important in the investigation of photosynthesis because it allows researchers to study the effects of photosynthesis on living cells versus dead cells. By comparing the results from boiled leaves to non-boiled leaves, scientists can determine if photosynthesis is occurring in the living cells of the leaf.Rate this question:
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.jpg "Gerak fototropisme yang benar ditunjukkan oleh gambar …")
.jpg "Perhatikan gambar penampang melintang batang berikut :floem ditunjukkan oleh gambar nomor…")
.jpg "Perhatikan gambar penampang melintang daun berikut :Tempat berlangsungnya fotosintesis ditunjukkan oleh gambar nomor …")
.jpg "Perhatikan ciri-ciri organ tumbuhan berikut :Pernyataan yang benar adalah ...")
.jpg "Perhatikan gambar tahapan percobaan menyelidiki adanya fotosintesis berikut.Daun direbus dengan air mendidih (gambar A) agar …")
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