Life Processes (Class X)
| Description: Life Processes | |
| Number of Questions: 20 | |
| Created by: Akash Patel | |
| Tags: Life Processes X Biology Smallest Division Factor Identifying Perfect Cubes Unit Digit of Cube Numbers Cubes and Cube Roots Finding Cube Root by Prime Factorization Method Guessing Cube Roots of Large Numbers Cellular Respiration Nutrition in Microbes Composition of Blood and Lymph |
Which of the following contains about 90 percent water and dissolved substances like proteins, digested food, common salt, waste products and hormones?
In which of the following organisms is simple food material obtained from inorganic sources used in the form of carbon dioxide and water?
a. Green plants b. Animals c. Fungi
Which of the following nutrients are used by an organism mainly as a source of energy?
a. Proteins b. Fats c. Mineral salts d. Carbohydrates
In parasitic nutrition, an organism derives its food from the body of another living organism. Which of the following organisms does not have parasitic mode of nutrition?
Which of the following statements is/are false?
a. Uric acid increases in muscle cells when they are lacking in oxygen. b. The breathing and respiration in woody stem of a plant takes place through the lenticels. c. Pyruvate can be converted into ethanol and carbon dioxide by yeast.
In which of the following animals, the oxygenation of blood does not takes place in the lungs?
Which of the following statements is/are false?
a. The opening and closing of stomatal pores is controlled by the guard cells. b. Green plants take carbon dioxide from air for photosynthesis. c. Cytoplasm is the site of photosynthesis in the cell of a leaf.
Which of the following glands are associated with the human digestive system?
a. Pancreas b. Pineal gland c. Hypothalamus d. Liver
Which of the following statements regarding the functions of bile is/are false?
a. It makes the acidic food coming from the stomach alkaline, so that pancreatic enzymes can act on it. b. Bile salts break the fats present in the food into small globules making it easy for the enzymes to act and digest them. c. It makes the medium of gastric juices acidic, so that the enzyme pepsin can digest the proteins properly.
Foods like glucose are broken down during respiration. Which of the following is used up during the process of respiration?
The function of which of the following is to carry urine from the kidneys to the bladder?
Which of the following organisms have a three-chambered heart that consists of two atria and one ventricle?
a. Birds b. Fish c. Frogs d. Lizards
Which of the following statements is/are false?
a. Blood pressure is measured by using an instrument called sphygmomanometer. b. Systolic pressure is the minimum pressure in the arteries during the relaxation phase of the heart. c. One of the functions of the lymph is to help remove the waste products like fragments of dead cells, etc.
In which of the following parts is carbon dioxide eliminated and oxygen taken into the body?
Match the following:
| a. Assimilation | 1. It is the process in which the food is taken into the body. |
| b. Ingestion | 2. It is the process in which the absorbed food is taken in by the body cells and used for energy, growth and repair. |
| c. Digestion | 3. It is the process in which the food containing large, insoluble molecules is broken down into small water soluble molecules. |
Plants have a less elaborate transport system. In plants, which of the following are carried by the xylem?
a. Water b. Hormones c. Minerals d. Food material
Which of the following organisms has spiracles on its body and tracheae as respiratory organs?
The function of which of the following is to carry dissolved substances like proteins, digested food, etc. from one part of the body to another?
Which of the following is the function of the pulmonary artery?
Which of the following statements is/are false?
a. In anaerobic respiration, the organisms break down the food into carbon dioxide and water. b. Mitochondria are the sites of aerobic respiration in the cells. c. Muscle cramps are caused by the accumulation of lactic acid in the muscles.