Living beings
How many levels of organization are?
8
Each strand is made of:
Adenine, Thymine, Cytosine and Guanine
Is the series of events that cells go through as they grow and divide:
Cell cycle
They are tha classes of macromolecules
carbohydrates, proteins, lipids and nucleic acids
Define Biology:
Is the science that studies the structure, function, growth and evolution, as well as the distribution of living organisms and their vital processes.
Mention 3 characteristics of living things
Cellular structure, metabolism, organization, homeostasis, irritability, reproduction, growth and adaptation
Before a cell divides, it duplicates its DNA in a copying process called
Replication
The second stage, division of the cytoplasm, is called:
Cytokinesis
Are the most important biomolecules
C, H, O, N, P, S
Define apoptosis:
Programmed cell death
Difference between anabolism and catabolism
catabolism breaks down food and anabolism synthesize small molecules into larger molecules
Consists of three consecutive nucleotides that specify a single amino acid that is to be added to the polypeptide:
Codon
Division of mitosis:
Prophase, metaphase, anaphase and telophase
Are made mostly from carbon and hydrogen atoms.
Lipids
Difference between unsaturated and polyunsaturated lipids:
carbon-carbon single bond and double bond
It is the response or reaction of living beings to stimuli of their internal or external environments.
Irritability
Is known as the decoding of an mRNA message into a polypeptide chain:
Translation
Cells that contain only a single set of chromosomes, and therefore only a single set of genes. One set.
Haploid
Are compounds with an amino group (-NH2) on one end and a carboxyl group (-COOH) on the other end.
Amino acids
Are unicellular organisms that lack organelles or other internal membrane-bound structures:
Prokaryotic cells
Mention an example of catabolism
Digestion
Translation takes place on:
Ribosomes
The chromosomes line up in a similar way to the metaphase stage of mitosis:
Metaphase II
Nucleotides consist of three parts:
a 5-carbon sugar, a phosphate group, and nitrogenous base
Are the forms of nutrition in living beings:
Autotroph and heterotroph