Animal Kingdom — BIOLOGY STD 11 Science — Question

Fill in the blanks a to f in the different columns of the table given below.

Enzyme	Site of Action	Substrate	Product of Action
Salivary amylase	Mouth and stomach	a	Maltose
b	Stomach	Protiens	Proteoss and peptones
Trypsin	c	Proteins Peptones and proteoses	Dipeptides
Lipase	Small intestine	Fats	d
e	Small intestine	Nucleic acid	Nucleotides and Nucleosides
Lactase	Small intestine	f	Glucose and Galactose

Plant growth is unique. Justify.

Which of the following is not correct matching of phylum and its three examples?

1. Arthropoda : Buthus, Lepisma, Leptocorisa.
2. Aschelminthes : Ancylostoma, Enterobius, Tubifex.
3. Mollusca : Teredo, Aplysia, Chaetopleura.
4. None of these.

Mention the causative factors for indigestion.

What are subunits' in a protein? Describe the subunits found in haemoglobin.

Differentiate between eyes of cockroach and eyes of frog.

State the number of segments in earthworm which are covered by a prominent dark band or clitellum.

Water is not a nutrient but is very important for digestion. If a person does not drink enough water, it can lead to which of these problems? Explain the possible problems which can arise because of the situation as per your answer.

1. There will be less secretion of digestive enzymes.
2. The person may suffer from poor bowel movement; leading to constipation.

1. What is the origin of secondary phloem?
2. In which plants it is found?

Write the main function of the root sys- tem. Write the difference between simple and com- pound leaves.