Cytokinins are plant hormones that cause increased cell division by stimulating the process of mitosis. They are involved primarily in cell growth and differentiation, but also affect apical dominance, axillary bud growth, and leaf senescence.
The lungs are the primary organs of the respiratory system in humans and many other animals. The lungs are a pair of spongy, air-filled organs located on either side of the chest . The trachea (windpipe) conducts inhaled air into the lungs through its tubular branches, called bronchi. The bronchi then divide into smaller and smaller branches (bronchioles), finally becoming microscopic.
Antonie Phillips van Leewenhoek was known as the father of microbiology and the microscope due to his early study of bacteria. He was a Dutch scientist who saw microbes when he was polishing lens he saw microbes.
Diffusion – Diffusion is the net movement of molecules or atoms from a region of high concentration with high chemical potential to a region of low concentration with low chemical potential.
Osmosis – Osmosis is the spontaneous net movement of solvent molecules through a semipermeable membrane into a region of higher solute concentration, in the direction that tends to equalize the solute concentrations on the two sides.
Active transport – Active transport is the movement of molecules across a membrane from a region of their lower concentration to a region of their higher concentration—in the direction against some gradient or other obstructing factor.
Passive transport – Passive transport is a movement of ions and other atomic or molecular substances across cell membranes without need of energy input.
Q8. Study of classification of organisms is known as _______.
जीवाणुओं के वर्गीकरण के अध्ययन को_______कहा जाता है?
The main role of chloroplasts is to conduct photosynthesis, where the photosynthetic pigment chlorophyll captures the energy from sunlight and converts it and stores it in the energy-storage molecules ATP and NADPH while freeing oxygen from water.
Q11. ________ is the cell organelle, in which the biochemical processes of respiration and energy production occur.
________वह कोशिका अंग है, जिसमे श्वसन और ऊर्जा उत्पादन के जैसी जैव रासायनिक प्रक्रियाएं होती है|
Mitochondria are rod-shaped organelles that can be considered the power generators of the cell, converting oxygen and nutrients into adenosine triphosphate (ATP). ATP is the chemical energy of the cell that powers the cell’s metabolic activities.
Propane is a flammable hydrocarbon gas liquefied through pressurisation. It is classified as LPG – Liquefied Petroleum Gas – along with butane, isobutane and mixtures of these gases. It is commonly used for heating and cooking.