🔰 Motion In A Straight Line 🔰

Motion in a straight line refers to the movement of an object along a single direction, such as along a straight path or a straight line. In physics, motion in a straight line is studied under the branch of mechanics. The following concepts are important in the study of motion in a straight line:

➖ Distance: Distance is a scalar quantity that represents the length of the path covered by an object during its motion. It is represented by the symbol "d" and has units of meters (m).

➖ Displacement: Displacement is a vector quantity that represents the change in position of an object from its initial position. It is represented by the symbol "Δd" or "d".

➖ Velocity: Velocity is the rate of change of displacement and is also a vector quantity. It is represented by the symbol "v" and has units of meters per second (m/s).

➖ Acceleration: Acceleration is the rate of change of velocity and is also a vector quantity. It is represented by the symbol "a" and has units of meters per second squared (m/s^2).

➖ Motion Equations: Motion equations are mathematical relationships that describe the motion of an object in a straight line. These equations can be used to calculate unknown quantities such as velocity, acceleration, and displacement.

💥Important Points of NCERT

🌟 All the unicellular eukaryotes are placed in Kingdom Protista.
🌟 Histone protein is absent in chromosome of dinoflagellates, due to this reason dinoflagellates are called mesokaryote.
🌟 Pigments present in dinoflagellates are Chl 'a' and Chl 'c'.
🌟 Stored food of dinoflagellates is starch.
🌟 Cell wall of diatoms is made up of cellulose + silica.
🌟 Pigments present in diatoms are Chl 'a' and Chl 'c'.
🌟 Stored food of diatom is leucosin and fats.
🌟 Mixotrophic nutrition is present in Euglenoids.
🌟 Stored food of Euglenoids is paramylum and fat.
🌟 Slime moulds are also called fungus animal.
🌟 At the time of reproduction slime moulds have cell wall.
🌟 Mode of nutrition is absorptive in fungi
🌟 Cell wall of fungi is made up of chitin.
🌟 In fungi the stored food remains in the form of glycogen and oil.
🌟 Mycelium of class phycomycetes is coenocytic aseptate.
🌟 Phytophthora infestans causes late blight disease in potato. This disease is known as "Famine of Ireland".

🌟 Mycelium of class - ascomycetes is uninucleate septate.
🌟 Class ascomycetes is known as "Sac fungi".
🌟 A. Flemming obtained the antibiotic penicillin from Penicillium notatum.
🌟 Fungus Neurospora is known as "Drosophila of Plant Kingdom".
🌟 Yeast is unicellular or non mycelial fungi.
🌟 Mycelium of class - basidiomycetes is septate and uni or binucleate.
🌟 Basidiomycetes is known as club fungi.
🌟 Special type of septa are found in mycelium of class basidiomycetes which are known as dolipore septum.
🌟 Clamp connection are formed during reproduction in basidiomycetes.
🌟 Puccinia is rust fungus, it causes rust disease in wheat.
🌟 Starting of rust disease (Primary infection) on wheat plants takes place through aeciospores.
🌟 Deuteromycetes is known as Fungi Imperfecti.

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