HESI A2 BIOLOGY QUESTIONS ANSWERS

HESI A2 BIOLOGY QUESTIONS & ANSWERS

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1.Which movement requires carrier protein but noo direct cellular energy?Facilitated transport 2.Which term denotes the movement of glucose molecules from an area of lower concentration to an area of higher concentreation?Active transport 3.Plasmolysis is a term describing?Cellular shrinkage, which occurs when cells are immersed in hypertonic solurion 4.The movement of substances from lesser concentration to higher concentration is called?Active transport 5.Which particular structure is present in both eucaryotic and prokaryotic cells?Cell membrane 6.Plant cells differ from animal cells in?The plant cells have a cell wall and animal cells do not 7.Which cell type is characterized by the lack of true nucleus and the absence of membrane-bound organelle?Prokaryotic cell 8.Which organelle is associated with hydrolytic enzymes and is sometimes reffered to as a "suicide bag" Lysosomes 9.Pinocytosis is the process of?Enclosing a liquid substance in a membrane and secreting it into the cell 10.The plasma membrane of the eurokaryotic cell determines selectively which substances can enter and leave the cell. Such a membrane is said to be ?Selectively permeable

• What primarily determines the shape of cells that lack cell walls?

Microtubule and microfilaments 12.Which pair of organelles is responsible foe energy supply to eurokaryotic cells?Chloroplast and mitochondria

• Whit which organelle is the synthesis of ATP associated?

Mitochondrion

• The plasma membrane is soluble

to? Lipids

• The process whereby muscle cell produce lactic acid is called?

Fermentation 16.During aerobic respiration, which one of the following substances is released?36ATP

• Noncyclic-photophosphorylation takes place inside the?

Thylakoids

• The dark reaction of photosynthesis takes place in ? 2 / 3

Stroma 19.Aerobic cellular respiration is more important to sustaining life than anaerobic because it produces?More energy

• Which organelle is responsible for oxygen

production? Chloroplast 21.An organic catalyst that enhances the chemical reaction is called ?An enzyme

• The first stage of aerobic cellular respiration is?

Glycolysis

• Glycolysis occurs in the

? Cytoplasm 24.For the aerobic pathway, electron transport systems are located in the ?Mitochondrion

• Codominance occurs when?

Both the alleles in a heterozygote are expressed phenotypically in a individual

• Mitosis in a single human cell usually results in the formation

of ? 2 diploid cells 27.Meiosis in a single human cell usually results in the formation of ?

• haploid cells
• If you reproduce sexually, you produce gamets via?

Meiosis

• If you reproduce asexually, you produce offspring via?

Mitosis 30.What type of allele is expressed in the phenotype of only a homozygous individual?Dominant 31.The sex of a human child is determined by the sex chromosome from?The father

• Cell division occurs most rapidly

in? Cancerous tissue

• Which blood type would be a universal donor?

O

• Passage of water through the membrane of a cell is called ?

Osmosis

• Which term includes all others?

Organism

• The kreb cycle

produces? CO2 and H2 37.The presence of which substance is most important for all cell activity ?

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