Glossary

 isoprenoids

Branched lipids also known as terpenoids

, chloroplasts
 

Primary Structural component of plant cell wall

Chromoplasts

makes and stores plant pigments .These pigments give flowers their colour

granum

Each stck of thylakoid

macromolecules.

Carbon chains form the skeletons of most organic molecules and functional groups combine with this chain to form biomolecules. As these biomolecules are  large they are called  macromolecules

micro nutrients or trace elements

These are required only in small amounts by the cell. These elements include sodium (Na), potassium (K), magnesium (Mg), zinc (Zn), iron (Fe), calcium (Ca), molybdenum (Mo), copper (Cu), cobalt (Co), manganese (Mn), or vanadium (Va)

Microfilaments 

These are thin cytoskeletal fibres and they help in cellular components movements

stomata

Apertures in the epidermis of plant cell bounded by guard cells

Aquaporins

These are channel proteins that allow water to pass through the membrane at very high rate

autotrophs

Organisms capable of making their own food

carbohydrates.”

Hydrated carbon atom chains

cell wall

is located outside the cell membrane . It gives shape,support and protect the cell

cell wall,

The cell wall is a structure external to the plasma membrane . The cell wall is a rigid covering that protects the cell, provides structural support, and gives shape to the cell. Unique component of plant cell.Fungal and protist cells also have cell walls.

cellulose

A polysaccharide comprised of glucose units

central vacuole

it contains water and dissolved substances . Maitains pressure against the inside of the cell wall

centrosomes

The centrosome is an organelle present in an animal cell that acts as the microtubule-organizing center of the cell. It also regulates the cell cycle

chloroplasts,

Like mitochondria, chloroplasts also have their own DNA and ribosomes. Chloroplasts function in photosynthesis and can be found in eukaryotic cells such as plants and algae

chyme

The semi liquid form of the food after digestion by stomach acids and enzymes

Cilia

Brush-like projections of plasma membrane

Cytokinesis

Division of cytoplasm

D-glucose

A hexose, most abundant monosaccharide in nature

Electron transport chain

The electron transport chain is a series of four protein complexes that couple redox reactions, creating an electrochemical gradient that leads to the creation of ATP in a complete system named oxidative phosphorylation. It occurs in mitochondria in both cellular respiration and photosynthesis

Exocytosis

The process of moving material out of the cell

flagella

Whip-like extensions of the plasma membrane

Glycogen

Primary energy storage molecules in animals and bacteria

Glycolysis

Glycolysis is a central metabolic pathway that is used by all cells for the oxidation of glucose to generate energy in the form of ATP (Adenosine triphosphate) and intermediates for use in other metabolic pathway.

heterotrophs

Organisms that depend on other organisms for their food

hopanoids

Compounds similar to cholesterol produced by bacteria

Karyokinesis

Division of the nucleus

Lactose

Milk sugar

Liposomes:

Lipid spheres made of bilayer sheets

lysosomes

A lysosome is a membrane-bound cell organelle that contains digestive enzymes. Lysosomes are involved in various cell processes like break down excess or worn-out cell parts, destroying invading viruses and bacteria,programmed cell death, or apoptosis.

macronutrients

The most abundant elements in cells , These include carbon, oxygen,nitrogen, phosphorous and sulfur

Maltose

Grain Sugar

Meiosis

The process of cell division of the gametic cells

Microtubules

These are thickest cytoskeletal fibres ,they help in organelle movement . The pull the chromosomes to their poles during cell division

Microvilli

Finger-like projections of plasma membrane . They help in absorption

Mitosis

Process by which the somatic cells divide

Peptide bond,

This bond is formed by the reaction of the carboxylic acid group of one aminoacid molecule with the amine group of another aminoacid molecule.

peristalsis

Wave like muscle contraction by which the food moves through the esophagus.

Phagocytosis

The process of cell eating

photosynthesis

The process by which plants make their own food like sugar and starch using carbon dioxide ,water and sunlight and liberate oxygen

Pinocytosis

Process of cell drinking

plasma membrane

The plasma membrane, also called the cell membrane, is the membrane found in all cells that separates the interior of the cell from the outside environment. In bacterial and plant cells, a cell wall is attached to the plasma membrane on its outside surface

plasmodesmata,

Plasmodesmata (singular = plasmodesma) are junctions between plant cells,

plastids

any of a class of small organelles in the cytoplasm of plant cells, containing pigment or food.

Starch

Energy storage molecule in plants

sterols

Most common type of steroids

stroma.

Fluid within the inner membrane of the chloroplast that surrounds the grana

Sucrose

Table sugar

thylakoids.

A set of interconnected and stacked fluid filled membrane sacs seen within the inner membrane of the chloroplast

Transcription.

It is the process by which cells copy a particular portion of its DNA nucleotide sequence—a gene—into an RNA nucleotide sequence.

Translation

The molecular process of protein synthesis

translation.

Translation is the process of conversion of nucleic acid information into amino acids.

Tri carboxylic acid cycle

TCA cycle or tricarboxylic acid cycle is also known as citric acid cycle or kreb's cycle and occurs in the matrix of mitochondria.The TCA cycle plays a central role in the breakdown, or catabolism, of organic fuel molecules.

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Interactive Biology Textbook for Secondary School Students by Dr V Malathi and Mrs Sushumna Rao is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License, except where otherwise noted.

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