GRADE 11 NOVEMBER 2012 AGRICULTURAL SCIENCES P1

Province of the

EASTERN CAPE

EDUCATION

NATIONAL

SENIOR CERTIFICATE

GRADE 11

NOVEMBER 2012

AGRICULTURAL SCIENCES P1

MARKS:

150

TIME:

2? hours

*AGRSE1*

This question paper consists of 17 pages, including an answer sheet.

2

AGRICULTURAL SCIENCES P1

(NOVEMBER 2012)

INSTRUCTIONS AND INFORMATION

1.

Answer ALL the questions from BOTH SECTIONS A and B.

2.

SECTION A (QUESTION 1) must be answered on the attached ANSWER

SHEET.

3.

Place your ANSWER SHEET for SECTION A (QUESTION 1) within your

ANSWER BOOK.

4.

SECTION B (QUESTIONS 2 to 4) must be answered in the ANSWER BOOK.

5.

Start each question from SECTION B on a NEW page.

6.

Read the questions carefully and make sure you answer what is asked.

7.

Number the answers correctly according to the numbering system used in this

question paper.

8.

DO NOT SPLIT the answers to the questions.

9.

Write neatly and legibly.

3

AGRICULTURAL SCIENCES P1

(NOVEMBER 2012)

SECTION A

QUESTION 1

1.1

Various options are provided as possible answers to the following

questions. Choose the correct answer and make a cross (X) over the

appropriate letter in the block (A ¨C D) next to the question number

(1.1.1 ¨C 1.1.10) on the attached ANSWER SHEET. No marks will be

allocated if more than one cross (X) appears for an answer.

Example:

1.1.1

A

B

C

D

The pH value of pure water is ¡­

A

B

C

D

1.1.2

1.1.11

7,0.

7,5.

6,5.

5,0.

The formula for the organic compound below is ¡­

CH2OH

C

H

OH

1.1.3

H

H

C

A

B

C

D

O

C

OH

H

C

C

H

OH

OH

C5H10O5.

C12H22H11.

C6H10O5.

C6H12O6.

When soil is watered, bubbles escape from soil mainly because of

the ...

A

B

C

D

mixture of gases.

hydrogen.

carbon dioxide.

oxygen in the soil.

4

AGRICULTURAL SCIENCES P1

1.1.4

The diameter of a colloidal particle varies between ¡­

A

B

C

D

1.1.5

C

D

Polypeptides are also fatty acids

Polypeptides are also known as amino acids if they are linked

with glycosidic bonds

The amino acids in the polypeptide will be connected by

peptide bonds

Each amino acid in the polypeptide will possess an amino

and a hydroxyl group

The type of clay mineral which is inclined to form a platy structure is

...

A

B

C

D

1.1.8

adult soil.

young soil.

eroded soil.

wet soil.

Which of the following is the correct statement referring to the

characteristics of all polypeptides?

A

B

1.1.7

10 and 100 nm.

10 and 1 000 nm.

1 and 10 nm.

1 000 and 10 000 nm.

The combination of A-horizon over C-horizon represents a/an ¡­

A

B

C

D

1.1.6

(NOVEMBER 2012)

montmorillonite.

kaolinite.

illite.

vermiculite.

In the following illustration of water molecule, one of the answers

below is the correct order for the parts labelled K to N.

- +

L

- +

K

-+

M

N

- +

A

B

C

D

K

oxygen

hydrogen

oxygen

hydrogen

L

hydrogen

oxygen

hydrogen

oxygen

M

cohesion

adhesion

hydrogen bond

hydrogen bond

N

hydrogen

oxygen

oxygen

oxygen

Black brack soil contains an excess of ¡­

1.1.9

A

B

C

D

1.1.10

sodium carbonate.

sodium chloride.

sodium sulphate.

potassium chloride.

One of the following diagrams represents a sweet soil:

K

A

B

C

D

1.2

5

AGRICULTURAL SCIENCES P1

(NOVEMBER 2012)

L

M

M

K and M

K

L

(10x2) (20)

In the table below, a statement and two answers are given. Decide whether

the statement in COLUMN B relates to A only, B only, both A and B or none of

the answers in COLUMN A. Choose the correct answer and make a cross (X)

in the appropriate block next to the question number (1.2.1 ¨C 1.2.5) on the

attached ANSWER SHEET.

Example:

1.2.6

Answer:

A:

B:

COLUMN A

Vitamins

Fats

The statement refers to:

Only A

Only B

1.2.6

A

B

1.2.1

1.2.2

1.2.3

1.2.4

1.2.5

A:

B:

A:

B:

A:

B:

A:

B:

A:

B:

COLUMN A

Cellulose

Lignin

O-horizon

A-horizon

Series photograph

Aerial photograph

Soil moisture

Soil air

Wilting point

Field capacity

COLUMN B

Organic compounds

A and B

C

None

D

COLUMN B

Disaccharides formed from

monosaccharaides

Form top soil of the upper surface

Soil map that is used during soil survey

Influences soil temperature for optimum

crop production

When all the soil pores are filled with air

and soil is dry

(5x2) (10)

 ................
................

In order to avoid copyright disputes, this page is only a partial summary.

Google Online Preview   Download