DSEE
Biology · Karatasi 2A · 2016
3 maswali 🇹🇿 NECTA ✓ Majibu rasmi ya NECTA
DSEE
🇹🇿 NECTA
✓ Majibu rasmi ya NECTA
Biology · Karatasi 2A · 2016
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 specimen K (a frog or toad) to expose its digestive system.
(a)
Draw a diagram showing seven labelled parts of the digestive system.
10 alama
(b)
State two precautions you must take when opening the inner body skin of specimen K.
5 alama
(c)
Give three major differences between digestive systems of amphibians and insects.
15 alama
Boresha ili kuona majibu ya mfano.
2.
10 alamas
You are given solution X.
(a)
Using the provided reagents, conduct food tests and complete the table below:
Food Tested | Procedure | Observation | Inference
5 alama
(b)
Mention two roles of each food substance found in solution X in human nutrition.
3 alama
(c)
Why is heat important during Benedict’s test?
2 alama
Boresha ili kuona majibu ya mfano.
3.
10 alamas
Observe specimens D, F, and G.
(a)
(i) Give two observable features that classify specimen D into its kingdom.
(ii) How is specimen D adapted to arid conditions? Give three ways.
5 alama
(b)
(i) From which organism was specimen G taken?
(ii) State two functions of specimen G.
3 alama
(c)
State three features that classify specimen F into its class.
2 alama
Boresha ili kuona majibu ya mfano.
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