Plant Anatomy
Plant Physiology
Plant Genetics
Plant Diseases
Soil Science
100

What is the primary function of the xylem in plants?
a) Transport nutrients
b) Transport water
c) Photosynthesis
d) Support

Transport Water

100

What process do plants use to convert sunlight into energy?
a) Respiration
b) Photosynthesis
c) Transpiration
d) Germination

Photosynthesis
100

What is the basic unit of heredity in plants?
a) Chromosome
b) Gene
c) DNA
d) RNA

Genes

100

What is the primary cause of most plant diseases?
a) Nutrient deficiency
b) Pathogens
c) Pests
d) Environmental stress

Pathogens

100

What is the top layer of soil called?
a) Bedrock
b) Subsoil
c) Topsoil
d) Clay

Topsoil

200

Which part of the plant is primarily responsible for photosynthesis?
a) Roots
b) Stem
c) Leaves
d) Flowers

Leaves

200

Which gas is primarily taken in by plants during photosynthesis?
a) Oxygen
b) Carbon Dioxide
c) Nitrogen
d) Hydrogen

Carbon Dioxide

200

 In Mendelian genetics, which term describes different forms of a gene?
a) Alleles
b) Chromatids
c) Genotypes
d) Phenotypes

Alleles

200

Which of the following is a viral disease in plants?
a) Rust
b) Blight
c) Mosaic
d) Wilt

Mosaic

200

What is soil pH a measure of?
a) Nutrient content
b) Soil texture
c) Acidity or alkalinity
d) Organic matter

Acidity or alkalinity

300

What type of tissue is responsible for growth in plants?
a) Vascular tissue
b) Meristematic tissue
c) Epidermal tissue
d) Ground tissue

Meristematic tissue

300

What is transpiration in plants?
a) Absorption of nutrients
b) Release of water vapor
c) Photosynthesis
d) Growth of roots

Release of water vapor

300

What is the expression of a gene called?
a) Genotype
b) Phenotype
c) Allele
d) Chromosome

Phenotype

300

What is the role of fungicides?
a) Control insects
b) Control bacteria
c) Control fungi
d) Control weeds

Control fungi

300

Which soil type is best for drainage?
a) Clay
b) Sand
c) Silt
d) Loam

Sand

400

What structure is present in plant cells but not in animal cells?
a) Nucleus
b) Mitochondria
c) Chloroplast
d) Ribosomes

Chloroplast

400

Which hormone is primarily responsible for plant growth?
a) Ethylene
b) Auxin
c) Gibberellin
d) Abscisic acid

Auxin

400

What type of cross involves two traits?
a) Monohybrid cross
b) Dihybrid cross
c) Test cross
d) Back cross

Dihybrid cross
400

What is a common symptom of bacterial infection in plants?
a) Wilting
b) Yellowing leaves
c) Galls
d) Leaf spots

Galls

400

What is organic matter in soil primarily made of?
a) Minerals
b) Water
c) Decomposed plants and animals
d) Air

Decomposed plants and animals
500

What is the main function of the phloem?
a) Transport water
b) Transport food
c) Provide support
d) Store energy

Transport food
500

What is the term for the opening and closing of stomata?
a) Photosynthesis
b) Respiration
c) Gas exchange
d) Translocation

Gas exchange

500

What is the expected phenotypic ratio in a dihybrid cross?
a) 3:1
b) 9:3:3:1
c) 1:1
d) 1:2:1

9:3:3:1

500

What is the primary method of preventing plant diseases?
a) Chemical treatment
b) Crop rotation
c) Irrigation
d) Fertilization

Crop rotation

500

What is the process called that breaks down rock into soil?
a) Erosion
b) Weathering
c) Sedimentation
d) Compaction

Weathering

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