8/18/2019 Answer Scheme Formative Test 2(f5)

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ANSWER SCHEME

FORMATIVE TEST 1 FORM 5 (2012)

SECTION A

1. D2. D

3. A

4. B

(4 marks)

SECTION B

QUESTION 1

NO CRITERIA MARKS

(a)(i) Able to name node PAnswer :

- Sinoatrial(node) 1

1

  (ii) Able to explain te !"n#tion o! node P.Sample answers :

- As a pa#emaker $ #ontrols eartbeat.

- %t &enerates $ prod"#es imp"lses $ si&nals $ in!ormation (to botatria) $$ %t initiates imp"lses (to te atria).

- 'a"sin& atria to #ontra#t (sim"ltaneo"sl).

- Blood is !or#ed into $ enters entri#les.  An 2

1

1

1

12

2

(b)(i) Able to state te dire#tion o! blood tat !lows in blood essel *and in blood essel +.

Sample answers :

- * : to all parts o! bod, and + : to te l"n&s. 2

2

  (ii) Able to explain ow a ole in te sept"m a!!e#ts te blood

 press"re in blood essel *.

Sample answers :- Blood press"re de#reases.

- ixin& o! blood in entri#les $$ Some o! te blood in te le!t

entri#le enters te ri&t entri#le.

1

1

2

(#)(i) Able to name deposit .

Answer :- 'olesterol $ !ats $ #al#i"m 1

1

8/18/2019 Answer Scheme Formative Test 2(f5)

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NO CRITERIA MARKS

  (ii) Able to explain ow deposit and tromb"s lead to

#ardioas#"lar disease.

Sample answers :- /"men o! arteries are narrowed $ blo#ked.

- 0o $ less ox&en $ n"trients s"pplied to te eart (tiss"es) $$ 0o $less ener& prod"#ed (b respiration).

An 1

- eart tiss"es dama&e $ died

- eart stop beatin& $$ 'a"sin& an&ina $ eart atta#k 

An 1

1

1

  1

1

1

  1

2

  (iii) Able to s"&&est two was to maintain a ealt eart.

Sample answers :- akin& !ood low in #olesterols $ sat"rated !ats $$ Balan#e diet.

- Pra#ti#e a ealt li!estle $ re&"lar exer#ise $ red"#e stress.

An 1

1

1

1

TOTAL 11