Plant Anatomy
What is the primary function of the xylem in plants?
a) Transport nutrients
b) Transport water
c) Photosynthesis
d) Support
Transport Water
What process do plants use to convert sunlight into energy?
a) Respiration
b) Photosynthesis
c) Transpiration
d) Germination
What is the basic unit of heredity in plants?
a) Chromosome
b) Gene
c) DNA
d) RNA
Genes
What is the primary cause of most plant diseases?
a) Nutrient deficiency
b) Pathogens
c) Pests
d) Environmental stress
Pathogens
What is the top layer of soil called?
a) Bedrock
b) Subsoil
c) Topsoil
d) Clay
Topsoil
Which part of the plant is primarily responsible for photosynthesis?
a) Roots
b) Stem
c) Leaves
d) Flowers
Leaves
Which gas is primarily taken in by plants during photosynthesis?
a) Oxygen
b) Carbon Dioxide
c) Nitrogen
d) Hydrogen
Carbon Dioxide
In Mendelian genetics, which term describes different forms of a gene?
a) Alleles
b) Chromatids
c) Genotypes
d) Phenotypes
Alleles
Which of the following is a viral disease in plants?
a) Rust
b) Blight
c) Mosaic
d) Wilt
Mosaic
What is soil pH a measure of?
a) Nutrient content
b) Soil texture
c) Acidity or alkalinity
d) Organic matter
Acidity or alkalinity
What type of tissue is responsible for growth in plants?
a) Vascular tissue
b) Meristematic tissue
c) Epidermal tissue
d) Ground tissue
Meristematic tissue
What is transpiration in plants?
a) Absorption of nutrients
b) Release of water vapor
c) Photosynthesis
d) Growth of roots
Release of water vapor
What is the expression of a gene called?
a) Genotype
b) Phenotype
c) Allele
d) Chromosome
Phenotype
What is the role of fungicides?
a) Control insects
b) Control bacteria
c) Control fungi
d) Control weeds
Control fungi
Which soil type is best for drainage?
a) Clay
b) Sand
c) Silt
d) Loam
Sand
What structure is present in plant cells but not in animal cells?
a) Nucleus
b) Mitochondria
c) Chloroplast
d) Ribosomes
Chloroplast
Which hormone is primarily responsible for plant growth?
a) Ethylene
b) Auxin
c) Gibberellin
d) Abscisic acid
Auxin
What type of cross involves two traits?
a) Monohybrid cross
b) Dihybrid cross
c) Test cross
d) Back cross
What is a common symptom of bacterial infection in plants?
a) Wilting
b) Yellowing leaves
c) Galls
d) Leaf spots
Galls
What is organic matter in soil primarily made of?
a) Minerals
b) Water
c) Decomposed plants and animals
d) Air
What is the main function of the phloem?
a) Transport water
b) Transport food
c) Provide support
d) Store energy
What is the term for the opening and closing of stomata?
a) Photosynthesis
b) Respiration
c) Gas exchange
d) Translocation
Gas exchange
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
What is the primary method of preventing plant diseases?
a) Chemical treatment
b) Crop rotation
c) Irrigation
d) Fertilization
Crop rotation
What is the process called that breaks down rock into soil?
a) Erosion
b) Weathering
c) Sedimentation
d) Compaction
Weathering