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WorksheetsANS 1 6.01 Digestive System of Birds and Mouth Functions
Total questions: 24
Worksheet time: 12mins
What is the function of the beak in birds?
Pecks and takes in feed whole
Stores and softens feed
Mixes feed with digestive juices
Excretes waste
Birds do not have teeth to chew feed.
True
False
The esophagus in birds is a ______ tube that guides food from beak to crop.
muscular
rigid
elastic
cartilaginous
Which organ stores and softens feed from saliva secretions? Choose the correct option.
Beak
Crop
Gizzard
Cloaca
The proventriculus is known as the true stomach where gastric acids and enzymes aid in the digestive process.
True
False
The gizzard contains grit and gravel to assist in crushing feed particles.
True
False
Which accessory organs release digestive juices into the small intestines to aid in digestion?
Liver, pancreas, and gallbladder
Beak, crop, and gizzard
Esophagus, crop, and vent
Cloaca, ceca, and large intestine
The small intestine is divided into three sections: the duodenum, the jejunum, and the ileum.
True
False
Intestinal juice is secreted by the intestinal wall and contains enzymes that break down ______ and ______.
proteins and sugars
fats and vitamins
minerals and water
carbohydrates and nucleic acids
What is the primary site of nutrient absorption by the villi? Choose the correct option.
Beak
Small intestine
Large intestine
Vent
Unlike other animals, birds have two ceca.
True
False
The large intestine absorbs water and adds mucus to the undigested feed to form ______.
feces
urine
saliva
chyme
The cloaca is the enlarged part of the digestive tract located just before the ______.
vent
gizzard
crop
esophagus
The vent excretes solid (feces) and liquid (urine) waste, and lays eggs (females only).
True
False
The mouth includes teeth, tongue, and ______ glands.
salivary
sweat
oil
pituitary
Which organ is described as a muscular tube next to the trachea and guides bolus from mouth to the stomach with involuntary muscular waves or contractions (peristalsis)?
Esophagus
Trachea
Pharynx
Larynx
What is the primary site of nutrient absorption by the villi?
Small intestine
Large intestine
Stomach
Esophagus
Which part of the digestive tract is a U-shaped sac connected to the esophagus and secretes enzymes and gastric juices to act on feed particles from concentrates?
Stomach
Small intestine
Rectum
Pancreas
Which organ releases digestive juices into the small intestines to aid in digestion?
Accessory organs (liver, pancreas, and gallbladder)
Heart
Kidneys
Lungs
Which organ is a blind pouch located between small and large intestines and uses microbial action to break down roughages?
Cecum
Duodenum
Rectum
Jejunum
Which part of the digestive tract absorbs water and adds mucus to the undigested feed to form feces?
Large intestine
Small intestine
Stomach
Esophagus
The end of the digestive tract where waste is excreted is called the:
Anus
Esophagus
Stomach
Small intestine
Which of the following is NOT a function of the stomach?
Secretes enzymes and gastric juices
Absorbs water and forms feces
Contains hydrochloric acid
Adds pepsin to act on proteins
Which organ is divided into three sections: the duodenum, the jejunum, and the ileum?
Small intestine
Large intestine
Stomach
Pancreas
