EXAM WITH ALL COMPLETE QUESTIONS
AND CORRECT ANSWERS
Fill in the blank. In plants, photosynthesis occurs in the ______________________, an organelle
that is specific to plants - answer-Chloroplast
What is not part of the central dogma - answer-The structure of DNA
Name four types of nucleotides that make up DNA - answer-Adenine
guanine
thymine
cytosine
List 5 biological molecules - answer-Carbohydrates
lipids
proteins
enzymes
nucleic acids
Which of the following is not a biochemical reaction that makes ATP
Krebs cycle
Glycolysis
,transcription
electron transport - answer-Transcription
mRNA - answer-encodes gene messages that are to be decoded in protein synthesis to form
proteins
rRNA - answer-part of the structure of ribosomes and is involved in translation
tRNA - answer-also play a role in protein synthesis
purpose of the mitochondria - answer-site of aerobic respiration within the cell and are
important suppliers of energy
what is osmosis - answer-the simple diffusion of water from a region of lower solute
concentration to a region of higher solute concentration
stomata - answer-Pores in the surface of a leaf through which carbon dioxide enters and oxygen
exits the plant
stroma - answer-Dense fluid within the Chloroplast in which Carbon dioxide is converted into
sugars
mRNA - answer-messenger RNA
carries messages that encode proteins
tRNA - answer-transfer RNA
, carries amino acids to make protein
rRNA - answer-ribosomal RNA
is a structural component of ribosomes
transcription - answer-involves DNA being read, and that information being transcribed or
transferred to RNA
Translation - answer-is when RNA is read, leading to the process of protein synthesis
Prokaryotes - answer-have no nucleus and no membrane-bound organelles, but do have
ribosomes and cell walls made up of peptidoglycans
Eukaryotes - answer-have a nucleus, membrane- bound organelles, and ribosomes
fungi, plants, animals
analogous - answer-structures are not inherited from a common ancestor, but perform similar
functions
spermatogenesis - answer-The production of four mature sperm
-each sperm has an YX or Y chromosome and does not donate mitrochondria to the embryo
the process is continuous
fresh sperm are created daily
oogenesis - answer-the process produces on egg plus 2-3 polar bodies
only ova with X chromosomes are produces
the process is discontunious