Fill in the blanks. 5M
1. _____________ is the outermost thin layer of pericarp.
2. ___________ are located on the chromosomes.
3. Liver secretes __________________into the small intestine.
4. Diseases caused due to malfunctioning of organs are called ___________diseases.
5. Photosynthesis occurs in __________________ in desert plants.
Answers
Answer:
1. epidermis
2. centromere
3. bile
4. degenerative
5. stomata
Explanation:
1. The epidermis is the outermost layer of the pericarp, extending over the entire kernel, except at the tip cap. It is a single row of cells coated on the outside with a waxy cuticle, 0.7–1.0 μm in thickness that restricts water absorption.
2. The constricted region of linear chromosomes is known as the centromere. Although this constriction is called the centromere, it usually is not located exactly in the center of the chromosome and, in some cases, is located almost at the chromosome's end. The regions on either side of the centromere are referred to as the chromosome's arms.
3. Bile from the liver secreted into the small intestine also plays an important role in digesting fat and some vitamins.
4. We can control deficiency diseases by taking balanced diet but there are some other diseases which are due to the malfunctioning of our body organs, these organs are pancreas, heart, kidney, eye lens and bone joints.
These diseases are also called degenerative disease.
5. Desert plants which grow in semi-arid conditions fix atmospheric CO2 to form malic acid in the dark. These plants accumulate organic acid during the night to be used during the daytime. This pathway of carbon fixation is called Crassulacean acid metabolism (CAM).
The stem, leaves and petioles of CAM plants are fleshy or succulent. They have reduced leaves, thick cuticle and sunken stomata. Their stomata remain closed during the day and open at night. This helps the plants to conserve water, but at the same time, cuts off CO2 supply which is required for photosynthesis.
In desert plants, the stomata are open at night and usually closed during the day. They take in CO2 at night and store it in the form of an intermediate product called malic acid.
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Answer:
1). Epicarp
2). Genes
3). Bile Juice
4). Degenerative Diseases
5). Phylloclades (stem)