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ZIMSEC O Level · 5034/1 · N2014

Agriculture Paper 1 November 2014

Questions
40
Time allowed
60 min
Syllabus code
5034/1

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Questions
40
Pass mark
24
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Answer every question in the printed order, get marked at the end, then see the answers.

The questions

Question 1

Natural Regions And Climate
You are a newly resettled farmer in Natural Region 1. Which of the following crops would you grow?
  1. Acotton and sorghum
  2. Bwheat and sugarcane
  3. Ctobacco and maize
  4. Dtea and coffee

Question 2

Natural Regions And Climate
Which of the following factors has the greatest influence on the type of crop to grow?
  1. Asoil type, day length, wind and rainfall
  2. Bhumidity, rainfall, day length and soil type
  3. Cwind, temperature, soil type and humidity
  4. Drainfall, temperature, day length and soil type

Question 3

Soil Science
Farmers dig soil profiles in order to determine soil
  1. Atexture and depth.
  2. Bmoisture and organisms.
  3. Cstructure and pH.
  4. Dcolour and nutrients.

Question 4

Soil Conservation
Farmers in low rainfall areas conserve moisture in arable lands by
  1. Agrowing early maturing crops.
  2. Bplanting drought resistant crops.
  3. Cmaking tiered ridges in the field.
  4. Dremoving water in waterways.

Question 5

Natural Resources And Conservation
Human and wildlife conflicts are due to
  1. Apoaching by human beings.
  2. Babundant food by farmers.
  3. Cincrease in animal populations.
  4. Dhuman settlement in game parks.

Question 6

Forestry
Fig. 1 below shows a regrowth on a gumtree stump. What name is given to regrowth Y?
  1. Ascion
  2. Bsucker
  3. Ccoppice
  4. Dbranch

Question 7

Crop Production
Sweet potato tubers mainly contain
  1. Astarch.
  2. Bproteins.
  3. Cfats and oils.
  4. Da lot of vitamins.

Question 8

Plant Physiology
In which part of the leaf does photosynthesis take place?
  1. Aguard cell
  2. Bpalisade cell
  3. Cstomata
  4. Dspongy mesophyll

Question 9

Crop Production
The term used to describe the uptake of water by a seed before it germinates is
  1. Aactive transportion.
  2. Bdiffusion.
  3. Cimbibition.
  4. Dosmosis.

Question 10

Plant Physiology
Which is the correct word equation for photosynthesis?
  1. Acarbon dioxide + water --light/chlorophyll--> glucose + oxygen
  2. Bcarbon dioxide + carbohydrate --light/chlorophyll--> starch + oxygen
  3. Ccarbon dioxide + oxygen --light/chlorophyll--> carbon dioxide + starch
  4. Dcarbon dioxide + starch --light/chlorophyll--> carbohydrates + oxygen

Question 11

Plant Physiology
Ring-barked trees die because
  1. Athe movement of water from roots to leaves stops.
  2. Bthe movement of manufactured food from leaves to roots stops.
  3. Cthe movement of nutrients from soil stops.
  4. Dthe stem is exposed to infection.

Question 12

Soil Fertility And Fertilizers
Which of the following liming material supplies both calcium and magnesium?
  1. Aground limestone
  2. Bquick lime
  3. Cdolomitic limestone
  4. Dhydrated limestone

Question 13

Soil Science
Three soil samples X, Y and Z were tested and the pH values were as follows: X = pH 3.0, Y = pH 7.0, Z = pH 9.0. Which one of the following statements is correct about the pH values of the soils?
  1. ASoil X has a low acidity and soil Y is neutral
  2. BSoil X has high acidity and soil Y is neutral
  3. CSoil Z is very alkaline and soil X has low acidity
  4. DSoil Z has high acidity and soil Y is neutral

Question 14

Soil Science
Why is capillarity highest in clay soils?
  1. Ahave more micro-pores
  2. Bare more fertile
  3. Chave more macro-pores
  4. Dare loosely packed

Question 15

Animal Nutrition
Choose a function of carbohydrates from the options below.
  1. AThey form part of protoplasm.
  2. BThey fight diseases within the body.
  3. CThey maintain body temperature at a constant level.
  4. DThey replace worn-out tissues.

Question 16

Plant Physiology
Identify the site within a cell where anaerobic respiration takes place.
  1. Acytoplasm
  2. Bmitochondria
  3. Cnucleus
  4. Dvacuole

Question 17

Plant Physiology
Which graph most closely represents the relationship between the rate of transpiration and atmospheric humidity?
  1. AA
  2. BB
  3. CC
  4. DD

Question 18

Crop Production
Why is it advantageous to propagate peach trees by budding?
  1. Acan produce new varieties
  2. Bcan rapidly increase the number of plants
  3. Ccan be less labour intensive
  4. Dcan grow fast

Question 19

Soil Fertility And Fertilizers
Urea has 46,0% Nitrogen. How much nitrogen is contained in 300 kg of urea?
  1. A88 kg
  2. B92 kg
  3. C108 kg
  4. D138 kg

Question 20

Plant Physiology
Fig. 2 shows a transverse section through the root of a green plant. Which of the tissues labelled 1 to 4 transports sugars from leaves?
  1. A1
  2. B2
  3. C3
  4. D4

Question 21

Plant Physiology
The products of anaerobic respiration are
  1. Acarbon dioxide and water.
  2. Bcarbon dioxide and alcohol.
  3. Coxygen and water.
  4. Dalcohol and water.

Question 22

Animal Nutrition
The table below has elements which make up various substances. Choose the option, A, B, C or D which contains elements that make up carbohydrates.
  1. AA
  2. BB
  3. CC
  4. DD

Question 23

Animal Nutrition
In the digestive system of a ruminant, water absorption takes place in the
  1. Aomasum.
  2. Boesophagus.
  3. Csmall intestines.
  4. Dlarge intestines.

Question 24

Water Management And Irrigation
Fig. 3 below shows an irrigation method. Which statement is true about this irrigation method?
  1. Acheap to install
  2. Buses a lot of water
  3. Cefficient in water use
  4. Dsuitable for orchards only

Question 25

Crop Production
A sweet potato crop is mainly propagated using
  1. Atubers.
  2. Bsplits.
  3. Ccuttings.
  4. Dsuckers.

Question 26

Crop Production
Which of the following shows the correct reproductive process of a bean plant?
  1. Aflower -> fruit -> fertilization -> pollination
  2. Bflower -> fertilization -> pollination -> fruit
  3. Cflower -> fertilization -> fruit -> pollination
  4. Dflower -> pollination -> fertilization -> fruit

Question 27

Soil Fertility And Fertilizers
How much compound fertilizer is required for a 0.15 hectare plot if the recommended application rate is 100 kg/ha?
  1. A5 kg
  2. B10 kg
  3. C15 kg
  4. D20 kg

Question 28

Soil Conservation
The graph below illustrates the effect of soil cover on soil loss. Which of the following statements is correct regarding the relationship between soil loss and soil cover?
  1. AThere is no soil loss when the soil cover is good.
  2. BSoil cover decreases as soil loss decreases.
  3. CSoil erosion increases as soil cover decreases.
  4. DSoil erosion increases as soil cover increases.

Question 29

Forestry
In plantations, young trees are planted out in lines 2,5 m apart with 2,5 m between the lines. How many trees will be required for 4 500 square metres of land?
  1. A450 trees
  2. B720 trees
  3. C1 080 trees
  4. D1 470 trees

Question 30

Plant Physiology
Fig. 4 represents a cross-section of a leaf. The structure that regulates the flow of air into and out of the leaf is labelled
  1. A2.
  2. B3.
  3. C4.
  4. D5.

Question 31

Plant Physiology
The part labelled 1 on Fig. 4 of question 30 is a component of
  1. Apalisade layer.
  2. Bcuticle.
  3. Cspongy layer.
  4. Dguard cell.

Question 32

Animal Nutrition
Which of the following lists of animals contain micro-organisms in their digestive system that synthesize Vitamin B?
  1. Asheep, donkeys and cattle
  2. Bpigs, cattle and rabbits
  3. Ccattle, pigs and donkeys
  4. Dgoats, cattle and sheep

Question 33

Farm Machinery And Tools
When using a maize sheller, which part is responsible for detaching seed from the husks?
  1. Agrain chute
  2. Bsieve mesh
  3. Cstraw tray
  4. Dhitter bars

Question 34

Crop Production
Which is the correct procedure of preparing a cereal crop for marketing?
  1. Athreshing/shelling -> grading -> drying -> storage
  2. Bdrying -> threshing/shelling -> grading -> storage
  3. Cgrading -> drying -> threshing/shelling -> storage
  4. Dstorage -> drying -> threshing/shelling -> grading

Question 35

Natural Resources And Conservation
A food web is described as a
  1. Acomplex food relationship in a trophic level.
  2. Bset of interconnected food chains within an ecosystem.
  3. Cflow of energy from producer to consumer.
  4. Dflow of energy from decomposer to consumer.

Question 36

Animal Breeding
Identify the correct sequence in which mitosis or meiosis takes place.
  1. Atelophase, metaphase, interphase, anaphase, prophase
  2. Banaphase, interphase, metaphase, telophase, prophase
  3. Cmetaphase, prophase, anaphase, telophase, interphase
  4. Dprophase, metaphase, anaphase, telophase, interphase

Question 37

Animal Breeding
If (P) is a dominant trait of a polled offspring and (p) is a recessive of a horned offspring, what offsprings would be expected from a cross of (PP) and (pp) parents?
  1. Aall polled offsprings
  2. Ball horned offsprings
  3. C3 polled, one horned offspring
  4. D3 horned, one polled offspring

Question 38

Farm Structures And Fencing
Fig. 5 illustrates anchors constructed by students at Gaka High School. Which of these anchors are correctly constructed?
  1. A(i) and (ii)
  2. B(ii) and (iii)
  3. C(iii) and (iv)
  4. D(ii) and (iv)

Question 39

Farm Management And Economics
Market prices are likely to fall when
  1. Ademand is high and supply is low.
  2. Bdemand is low and supply is low.
  3. Csupply is high and demand is high.
  4. Dsupply is high and demand is low.

Question 40

Farm Management And Economics
When preparing a budget for a poultry enterprise, which information do you require?
  1. Avariable costs and market price
  2. Brainfall pattern and availability of feed
  3. Cavailability of transport and labour
  4. Ddemand and supply of poultry products

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