DSEE
Biology · Karatasi 2A · 2017
3 maswali 🇹🇿 NECTA ✓ Majibu rasmi ya NECTA
DSEE
🇹🇿 NECTA
✓ Majibu rasmi ya NECTA
Biology · Karatasi 2A · 2017
3 maswali
💰 Fanya mtihani kamili
TZS 200
Mtihani wa saa 3 wa muda · husahihishwa kiotomatiki · huhesabiwa kwenye nafasi
Lipa na anza mtihani →
Maswali (3)
Sehemu A
1.
30 alamas
Dissect the specimen labelled J to display the digestive and reproductive systems.
(a)
Draw a well-labelled diagram showing six parts of the digestive system and two parts of the reproductive system.
12 alama
(b)
Name three major parts forming the alimentary canal in specimen J.
9 alama
(c)
State three functions of the reproductive organs observed in specimen J.
9 alama
Boresha ili kuona majibu ya mfano.
2.
10 alamas
You are provided with specimen M1 and M2. Perform the following steps: (i) Cut M1 into two halves. (ii) Drop iodine solution on one half and observe after five minutes. (iii) On the other half, add Benedict’s solution and observe after heating. (iv) For M2, rub it on paper, heat, and observe the result.
(a)
Record the observations from all three tests.
3 alama
(b)
Identify the food substances present in M1 and M2.
3 alama
(c)
State the enzymes responsible for digesting the identified food substances and their end products.
2 alama
(d)
Give three functions of the food substance from M2 to desert animals.
2 alama
Boresha ili kuona majibu ya mfano.
3.
10 alamas
Observe specimens F, G, H, and I.
(a)
List four observable differences between specimens F and G.
4 alama
(b)
Give three similarities between specimens H and I.
3 alama
(c)
Draw specimen G and label five parts.
3 alama
Boresha ili kuona majibu ya mfano.
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