What is the name of the enzyme in saliva that begins the digestion of starches?
Pepsin
Amylase
Trypsin
Lipase
Correct Answer :
B. Amylase
Related Questions
What is the process by which species evolve into more diverse forms over time?
Speciation
Convergent evolution
Divergent evolution
Coevolution
The relationship between a bee and a flower, where the bee obtains nectar and pollen while aiding in pollination, is an example of:
Mutualism
Parasitism
Competition
Commensalism
What is the function of the pancreas in the human body?
Digestion of proteins
Regulation of blood sugar levels
Filtration of blood
Production of bile
In humans, which hormone is responsible for the development of secondary sexual characteristics in males?
Estrogen
Progesterone
Testosterone
Prolactin
Which of the following is a characteristic of arachnids?
Six legs
Two pairs of antennae
Exoskeleton made of chitin
Segmented body
Which of the following is a bacterial disease that primarily affects the respiratory system and can be prevented by vaccination?
Tuberculosis
Malaria
Cholera
Whooping cough (Pertussis)
In which plant tissue does most photosynthesis occur?
Epidermis
Xylem
Phloem
Mesophyll
Which of the following is NOT a function of the cell wall in plant cells?
Providing structural support
Regulating osmotic balance
Facilitating cell communication
Protecting against pathogens
What term describes the process by which animals adjust their internal biological clocks to match the daily cycle of light and dark in their environment?
Hibernation
Migration
Circadian rhythm
Nocturnal behavior
What is the term for a change in the sequence of DNA that can be passed on to offspring?
Gene flow
Genetic drift
Mutation
Natural selection
What is the primary source of energy for most ecosystems?
Wind
Water
Sunlight
Geothermal heat
Which of the following is NOT part of the human digestive system?
Stomach
Liver
Kidney
Small intestine
What is the process by which plants respond to light and grow toward it called?
Phototropism
Gravitropism
Thigmotropism
Hydrotropism
What is the main function of the respiratory system?
Regulation of blood sugar levels
Transportation of oxygen and carbon dioxide
Digestion of food
Filtration of blood
Which part of the human brain is responsible for regulating basic bodily functions like breathing and heart rate?
Cerebrum
Cerebellum
Medulla oblongata
Thalamus
What is the function of the cell membrane?
Synthesizing proteins
Protecting the nucleus
Regulating the passage of substances in and out of the cell
Storing genetic information
What is the main function of the kidneys in the human body?
Regulation of blood sugar levels
Production of red blood cells
Filtration of blood and excretion of waste products
Digestion of food
In angiosperms, what is the female reproductive structure that contains the ovules?
Stamen
Pistil (carpel)
Sepal
Petal
What is the term for the process by which an embryo implants itself in the uterine lining and begins to develop?
Ovulation
Fertilization
Implantation
Menstruation
Which term refers to the variety of life on Earth, including the diversity of species, ecosystems, and genetic variation within species?
Sustainability
Biodiversity
Ecology
Conservation
A human male has how many sex chromosomes?
1
2
23
46
Which of the following is a viral disease transmitted through the bite of infected mosquitoes?
Tuberculosis
Malaria
Influenza
Lyme disease
In which type of plant tissue does most of the photosynthesis occur?
Xylem
Phloem
Epidermis
Mesophyll
What is the primary function of the mitochondria?
Protein synthesis
Energy production
Lipid synthesis
Waste elimination
What is the term for the process by which an animal forms a social attachment to another object or organism, often occurring shortly after birth?
Conditioning
Habituation
Reflex
Imprinting
Which of the following is an example of an invasive species?
Native grasses in their natural habitat
A non-native tree planted in a garden
A species that naturally occurs in a specific ecosystem
A species that is endangered
What is the primary driver of the current global biodiversity crisis?
Habitat loss
Climate change
Pollution
Invasive species
Which of the following is NOT a method of preventing the spread of infectious diseases?
Vaccination
Antibiotic use
Handwashing
Quarantine
What is the term for the transfer of pollen from the male reproductive organ to the female reproductive organ of a flower?
Fertilization
Pollination
Germination
Embryo development
Which organelle is responsible for protein synthesis?
Golgi apparatus
Ribosome
Endoplasmic reticulum
Lysosome