Logic of a solution: *Plants use cellulose for their cell walls. Basically, fiber is cellulose . Cells walls are fiber.*
*(F)*
The original question: *What are cell walls made of?
Options:
- (A) fossils
- (B) peat
- (C) moss
- (D) cations
- (E) Carbon
- (F) Fiber
- (G) Fungi
- (H) sodium*
Line 1: *Cancer is a disease that occurs when the cell cycle is no longer regulated. Another critical protein in regulating the cell cycle is the tumor suppressor protein p53 . Cancer is a disease that often results when tumor suppresor proteins, like p53, stop functioning.*
*(B)*
Line 2: *One tumor suppressor protein which often results in cancer when it stops functioning is:
Options:
- (A) gene
- (B) p53
- (C) tumors
- (D) HIV
- (E) enzyme
- (F) tRNA
- (G) DNA
- (H) TRH*
Logic of a solution: *Echinoderms lack respiratory and excretory systems. Echinoderms are represented by the starfish. Starfish lack respiratory and excretory systems.*
*(G)*
The original question: *_ lack respiratory and excretory systems.
Options:
- (A) graptolites
- (B) insects
- (C) ferns
- (D) barnacles
- (E) fossil fuels
- (F) Allergies
- (G) starfish
- (H) parasites*
Line 1: *Female gametophytes produce eggs inside the ovaries of flowers. Currently the state flower is the peony, which originates in China. Female gametophytes produce eggs inside the ovaries of peonies.*
*(A)*
Line 2: *Female what produce eggs inside the ovaries of peonies?
Options:
- (A) gametophytes
- (B) Plant reproduction
- (C) honeybees
- (D) peachleaf willow
- (E) insects
- (F) fertile
- (G) orchids
- (H) graptolites*
Logic of a solution: *Molecules of tRNA bring amino acids to the ribosome in the correct sequence. Ribosome binding site, start and stop codons, protein coding sequence. Molecules of tRNA bring amino acids to the ribosome to create proteins.*
*(B)*
The original question: *Trna and the ribosome work to produce:
Options:
- (A) A kernel
- (B) protein
- (C) food
- (D) Energy.
- (E) power
- (F) Joules
- (G) alleles
- (H) Energy*
Logic of a solution: *Viruses contain DNA but not much else. DNA stands for Deoxyribonucleicacid. Viruses contain Deoxyribonucleicacid but not much else.*
*(E)*
The original question:
*What do viruses contain?
Options:
- (A) electromagnetic energy
- (B) light energy
- (C) resistance
- (D) contamination
- (E) Deoxyribonucleicacid
- (F) Chemical energy
- (G) harmful substances
- (H) Leptospirosis*