NCERT Solutions for Class 7 Science Chapter 2 (2024)

FAQs

What are the keywords of NCERT Class 7 Science Chapter 2? ›

Some of the important topics or keywords of Class 7 NCERT Textbook, Chapter 2 are Absorption, Amino acid, Amoeba, Assimilation, Bile, Buccal cavity, Canine, Cellulose, Digestion, Egestion, Fatty acid, Food vacuole, Gall bladder, Glycerol, Incisor, Ingestion, Liver, Milk teeth, Molar, Permanent teeth, Oesophagus.

For CBSE class 7 NCERT books are the base . So a few chapters are important or may require more effort like acids , bases and salts,soil , respiration in animals, transportation in animals and plants, reproduction in plants , motion and time, light , electric current and its effect .

food into simpler substances is called digestion.

Amoeba is a microscopic, single-celled organism found in pond water. It constantly changes its shape and position. Pseudopodia is a finger-like projection that is pushed out by amoeba. Amoeba ingests food with the help of pseudopodia (false feet) and ingests it in the food vacuole.

Answer: Villi are tiny finger-like projections originating from the walls of the small intestine. They increase the surface area for absorption of the digested food. The blood vessels present inside the villi can absorb the nutrients from the digested food.

Cud is a food component that returns from the stomach to the mouth of an animal for a second chew. Rumination is the process by which cud is generated during digestion. Ruminants are other names for cud-chewing animals.

There is no hard subject in any class if we are well prepared with the topic. But according to me Maths(Goemetry) is the hardest subject of class 7. I have Choose this Geometry because I am very bad at it and not scored good marks in previous examinations in geometry.

Which is the toughest chapter in science class 10 CBSE? The toughest chapter in Class 10 Science CBSE can vary among students. However, chapters like Heredity and Evolution and Electricity are often considered challenging due to their abstract concepts and numerical problems.

Control and Coordination: This chapter deals with the nervous system and hormones, which can be relatively easier to understand compared to other topics. Students can grasp concepts like reflex actions, the structure of the nervous system, and the role of hormones in coordination.

An injection is a shot, or a dose of medicine given by way of a syringe and a needle.

What is stomach class 7? ›

What is the stomach? The stomach is a J-shaped organ that digests food. It produces enzymes (substances that create chemical reactions) and acids (digestive juices). This mix of enzymes and digestive juices breaks down food so it can pass to your small intestine. Your stomach is part of the gastrointestinal (GI) tract.

Absorption is the process where the digested food molecules are absorbed into the bloodstream and then transported to various parts of our body. Absorption is the process by which the digestive contents are absorbed by the blood and distributed to the rest of the body.

What is Amoeba? Amoeba is a unicellular organism that has the ability to change its shape. They are usually found in water bodies such as ponds, lakes and slow-moving rivers. Sometimes, these unicellular organisms can also make their way inside the human body and cause various illnesses.

Ingestion can be referred to as an organism's consumption of a substance. In the case of human beings, when the food is taken in from the mouth and then masticated and swallowed for further processing, it is called ingestion.

Pseudopodia are temporary projections of the cytoplasm of a cell. Pseudopodia are used for locomotion and feeding in amoeba and white blood cells. The activation of the polymerization of the actin filaments forces the membrane to extend and form pseudopodia.

Three things we can learn from the 'tiny teacher' are sense of duty and discipline, cleanliness and loyalty to the land where they live. These are the qualities that most humans lack.

Answer: A formula represents the kind of elements present in a compound and the number of atoms and molecules of those elements in the compound. Example: The formula [Math Processing Error] 2 H 2 O represents 2 molecules of water, where each molecule of water contains 2 atoms of hydrogen and 1 atom of oxygen.

Answer. Science is a systematic and organized process of acquiring knowledge and understanding about the natural world through observation, experimentation, and analysis.