Biology · Karatasi 2B · 2022
2 maswali 🇹🇿 NECTA ✓ MSBiology · Karatasi 2B · 2022
2 maswali
Mtihani wa saa 3 wa muda · husahihishwa kiotomatiki · huhesabiwa kwenye nafasiMazoezi ya saa 3 · husahihishwa moja kwa moja · huhesabika kwenye nafasiMazoezi ya saa 3 · husahihishwa moja kwa moja · huhesabika kwenye nafasi
Lipa na anza mtihani →Maswali (2)
Sehemu A
You are provided with specimens A, B and specimen C. (a) Observe carefully the displayed reproductive system in the specimen A, then draw a well labelled diagram of the reproductive system only. (b) Carefully remove the sepals, petals and completely peel off the stamen tube to fully display carpel of specimen B, then draw a well labelled diagram of the carpel. (c) State four similar functions performed by reproductive system in diagram 1(a) and the carpel in 1(b). Present your work under criteria shown in the following table: Table of similarities in 1(a) and 1(b) Similar Functions S/N Criteria Reproductive system in 1(a) Carpel in 1(b) (i) Reception of gametes (ii) Production of gametes (iii) Fertilization site (iv) Zygote development (d) What is the type of reproduction exhibited by the plant which specimen C was taken? Give a reason to support your answer. (e) Briefly explain how the specimen C is propagated for reproduction of new plant. (f) In what ways the products from the specimen C is useful to human being. Give three points
- Observe carefully the displayed reproductive system in the specimen A, then draw a well labelled diagram of the reproductive system only. (5 alama)
- Carefully remove the sepals, petals and completely peel off the stamen tube to fully display carpel of specimen B, then draw a well labelled diagram of the carpel. (5 alama)
- State four similar functions performed by reproductive system in diagram 1(a) and the carpel in 1(b). Present your work under criteria shown in the following table: Table of similarities in 1(a) and 1(b) Similar Functions S/N Criteria Reproductive system in 1(a) Carpel in 1(b) (i) Reception of gametes (ii) Production of gametes (iii) Fertilization site (iv) Zygote development (8 alama)
- What is the type of reproduction exhibited by the plant which specimen C was taken? Give a reason to support your answer. (3 alama)
- Briefly explain how the specimen C is propagated for reproduction of new plant. (3 alama)
- In what ways the products from the specimen C is useful to human being. Give three points (4 alama)
Boresha ili kuona majibu ya mfano.
You are provided with specimens Q, R , S and T. (a) (i) Classify each of the specimens R, S and T to class level. (ii) State three reasons for placing the specimen S to its respective class in 2(a)(i). (b) Why is it important to understand the type of classification system used to place specimens R, S and T in their respective groups? Give one reason. (c) State three advantages of the members which have been placed together with specimen R in the same Class. (d) Why specimen Q is placed in the Division Bryophyta? Give two reasons. (e) Draw a well labelled diagram of specimen Q.
- (i) Classify each of the specimens R, S and T to class level. (ii) State three reasons for placing the specimen S to its respective class in 2(a)(i). (7 alama)
- Why is it important to understand the type of classification system used to place specimens R, S and T in their respective groups? Give one reason. (3 alama)
- State three advantages of the members which have been placed together with specimen R in the same Class. (6 alama)
- Why specimen Q is placed in the Division Bryophyta? Give two reasons. (4 alama)
- Draw a well labelled diagram of specimen Q. (5 alama)
Boresha ili kuona majibu ya mfano.