Gaseous Exchanges in Plants

Chapter 10 Gaseous Exchanges – 10th Class Biology Notes Question 1: Define gaseous exchanges, breathing and cellular respiration? Answer: Gaseous exchanges: Taking in oxygen and giving out of carbon dioxide is termed as gaseous exchange.  “OR” The exchange of gases in body of living organisms through a characteristic way is called gaseous exchanges. Gaseous exchanges is …

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You see pus at the site of infection on your skin, How is it formed?

You see pus at the site of infection on your skin. How is it formed? Answer: Formation of pus: Pus are nothing but a rich protein fluid and dead leukocytes (neutrophills). WBC fight foreign invaders that inter to the body. When they find disease causing bacteria in any of the body. They send message to …

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Cell Cycle – Mitosis and Meiosis

Interesting information about this chapter and introduction;- All organisms consists of cells. An adult human being has approximately 1, 00,000 billion cells, all originate from a single cell, the fertilized egg cell or zygote. Cells arise from free existing cells as a result of cell division (cell reproduction) .

How surface area to volume ratio limits cell size?

How surface area to volume ratio limits cell size? Cell is the basic structural and functional unit of life. It means that cell controls all functions including all metabolic reactions (activities). The number of reactions increases as the volume of metabolic area increases. All the materials necessary for metabolism enter the cell through cell membrane …

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PLANTS TISSUES

Tissues A group of cells that perform a specific function is called tissue. PLANT TISSUES As in animals, the cells of plants are grouped into tissues with characteristic functions such as photosynthesis, transport etc. There are two major categories of tissues in plants i.e. simple tissues and compound (complex) tissues.

Animals Tissues

Tissues A group of cells that perform a specific function is called tissue. Animal tissues:- Tissues found in animals are called animal tissues. Important type of animal tissues are  epithelial tissue, connective tissue, muscle tissue, and nervous tissue.

Comparison Among Prokaryotic and Eukaryotic Cells

Comparison Among Prokaryotic and Eukaryotic Cells The distinction between prokaryotes and eukaryotes is considered to be the most important distinction among groups of organisms. Eukaryotic cells contain membrane-bound organelles, such as the nucleus, while prokaryotic cells do not. Differences in cellular structure of prokaryotes and eukaryotes include the presence of mitochondria and chloroplasts, the cell …

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Comparison between plant and animal cell

Comparison between plant and animal cell Differences — Similarities — Animal Cell Plant Cell Cell wall Absent Present (formed of cellulose) Shape Round (irregular shape) Rectangular (fixed shape) Vacuole One or more small vacuoles (much smaller than plant cells). One, large central vacuole taking up 90% of cell volume. Centrioles Present in all animal cells …

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