Science: Life Science Flashcards
Special type of protein that speeds up chemical reaction
Ex: breaking down food
Enzymes
DNA four types of nucleotides ( small molecules that makes up DNA)
RNA substitutes…
Adenine
Cytosine
Guanine
Thymine
RNA: Uracil for thymine
AT and CG or AU
Single celled organism
No nucleus, mitochondria, chloroplasts
Prokaryotes
Ex: bacteria
Contain a nucleus
Multicellular organisms
Chromosomes found in _
Eukaryotes
Nucleus
Organelles:
Produce energy
Produce proteins
Store water and other molecules
Mitochondria
Ribosomes
Vacuoles
Plants store energy from sunlight as sugars, energy source for cell function
Photosynthesis
_ phase
Duplicates DNA
Prophase
_ phase
Chromosomes line up in pairs along central axis in cell
Metaphase
_ phase
Pairs begin to split - one chromosome to one side and other toward opposite side
Anaphase
_ Phase
Cell membrane splits…two new cells are formed
Telophase
_ phase
division is complete
2 cells return to normal rest ing states
Interphase
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Interphase Prophase Metaphase Anaphase telophase
Produces two cells with the same DNA* same # of chromosomes as parent cell*
Formation of reproductive cells
Mitosis
Meiosis
Chromosomes in reproductive cells
chromosomes in body cells
23
46
Bacterial chromosome found in
Cytoplasm
One ATP molecule produces two molecules of pyruvate during…
Glycolysis
Krebs cycle in:
Prokaryotes
Eukaryotes
Prokaryotes- cytoplasm
Eukaryotes- mitochondria
Plants make glucose from (2)
How?
Process called?
Carbon dioxide and water
Use sunlight through photosynthesis
Calvin cycle
Tiny packet of energy from the sun absorbed by chlorophyll
Photon
molecules of ATP produced during electron transport
34
molecules of ATP produced during glycolysis
2
molecules produced during Krebs cycle
2
molecules produced during entire process of cellular respiration
38
Photosynthesis takes place in
Chloroplast
Endoplasmic reticulum synthesizes
Proteins and lipids
