HESI A2 Biology (V1) - study guide 1
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Which movement requires carrier protein but not direct cellular energy ✔✔facilitated transport
Which term denotes the movement of glucose molecules from an area of lower c
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HESI A2 Biology (V1) - study guide 1
rated A+
Which movement requires carrier protein but not direct cellular energy ✔✔facilitated transport
Which term denotes the movement of glucose molecules from an area of lower concentration to
an area of higher concentration ✔✔active transport
Plasmolysis is a term describing ✔✔cellular shrinkage, which occurs when cells are immersed in
hypertonic solution
Which particular structure is present in both eukaryotic and prokaryotic cells ✔✔cell membrane
Which cell type is characterized by the lack of true nucleus and the absense of membrane-bound
organelles ✔✔prokaryotic cell
Which organelle is associated with hydrolytic enzymes and is sometimes reffered to as the
suicide bag ✔✔lysosomes
Pinocytosis is the process of ✔✔enclosing liquid substances in a membrane and secreting it into
the cell
The plasma membrane of the eurokaryotic cell determines selectively which substances can enter
or leave the cell. Such a membrane is called ✔✔selective permable
What primarily determines the shae of the cell that lacks cell walls ✔✔microtubules and
microfilaments
Which pair of organelles are responsible for energy supple to eukaryotic cells ✔✔chloroplast
and mitochondia
Which organelle is the synthesis of ATP associated with ✔✔mitochonrida
The plasma membrane is soluble to ✔✔lipids
The process whereby muscle cells product lactic acid is called ✔✔fermentation
During aerobic respiration, which substance is released ✔✔36 ATP
non-cyclic photophosphorylation takes place inside the ✔✔thylakoids
The dark reaction of photosynthesis takes place in ✔✔stoma
Aerobic cellular respiration is more important to sustaining life than anaerobic because it
produces ✔✔more energy
Which organelle is responsible for oxygen production ✔✔chloroplast
An organic catalyst that enhances the chemical reaction is called ✔✔an enzyme
first stage of aerobic cellular respiration ✔✔glycolysis
Glycolysis occurs in the ✔✔cytoplasm
For the aerobic pathway, electron transport systems are located in the? ✔✔mitochondria
Codominance occurs when ✔✔both of the alleles in a heterozygote are expressed phenotypically
in an individual
Mitosis is a single human cell usually results in the formation of ✔✔2 diploid cells
Meosis is a single human cell usually results in the formation of ✔✔4 haploid cells
If your produce sexually, you produce ✔✔gametes through meosisi
If you produce asexually, you product ✔✔offsprings via mitosis
What type of allele is expressed in the phenotype of only a homozygous individual ✔✔dominant
The sex of a human child is determined by the sex chromosome from? ✔✔the male
Cell division occurs most rapidly in ✔✔cancerous tissue
Which type of blood is the universal donor? ✔✔O
Passage of water through membrane of a cell is called ✔✔osmosis
Which term includes all others ✔✔organism
The Kreb Cycle produced ✔✔2 CO2, NADH & FADH2
The presence of of which substance is more important for all cell activity ✔✔watre
The basic structure of a cell membrane is ✔✔phospholipid bilayer (protein)
Cytoplasmic structures that contain powerful hydrolysis enzymes, which could lead to cell
destruction in the absence of surrounding membranes are ✔✔lysosomes
Organic substances made up of several amino acids bound together are ✔✔proteins
The smallest known microorganisms are ✔✔viruses
The end product of metabolism ✔✔amino acids
Carbohydrates are absorbed into the blood as ✔✔glucose
The substance of basic life is ✔✔proteins
The body obtains most of its nitrogen from ? ✔✔proteins
The basic unit of living organisms is ✔✔cell
The diffusion of water through a semipermeable membrane is known as ✔✔osmosis
The process in which carbon dioxide and water are combined under the influence of light in
green plants are called ✔✔photosynthesis
Amino acids that cannot be manufactures by the body are called ✔✔essential amino acids
The body's continual response to changes in the external and internal environment is called
✔✔homestatsis
The ability of a cell to reproduce is called ✔✔mitosis
The part of the cell necessary for reproduction is the ✔✔nucleus
Proteins are polymers of _____. ✔✔amino acids
In cellular metabolism, glycolysis does not require ✔✔CO2
Cellular proteins are synthesized in ✔✔ribosomes
In eukaryotic cells, the phase of division that produces 2 daughter cells is ✔✔cytokinesis
Some substances are transported across cell membranes by proteins are known as ✔✔permeases
The cellular organelle where respiration reactions for the release of energy occurs in
✔✔mitchondrion
The most efficient cellular respieation process, in terms of energy-yield per molecule of glucose
is ✔✔aerobic respiration
A cellular organelle found in typical plants cells, but not in typical animal cells is ✔✔chloroplast
Every cell contains ✔✔cell membrane and cytoplasm
The two organic substances present in chromosomes are ? ✔✔protein and nucleic acid
Genes may be defined as ✔✔functional segments of chromosomes
The dense mass of ribonucleic acid within the nucleus is the ✔✔nucleolus
The endoplasmic reticulum may be described as ✔✔Series of membranes in the cell's cytoplasm
The lysosomes of the cell contain ✔✔digestive enzymes
The mitochondria of the cell are best known as ✔✔energy is released from food molecules
The flagella of human cells cause ✔✔cell movement
During the process of diffusion ✔✔molecules move from a region of high concentration to one
of low concentration
The plasma membrane is semipermeable membrane because ✔✔it lets only certain molecule
through
Virtually, all chemical reactions of the cell are catalyzed by ✔✔enzymes
The codon is a three-base group of nucleotides that specifices ✔✔an amino acid
Protein synthesis in the cell could not occur in the absence of ✔✔amino acid molecules
A molceule of messanger RNA contains ✔✔exons, no introns
Which of the following types of hormones stimulates a chemical response to a target cell by
diffucing through the cell membrane to bind to the receptor inside the cell ✔✔fat-solute
hormones
Within the biologic hierarchic system of organization, which of the following is least inclusive?
✔✔species
Why is polarity the most important characteristic of water? ✔✔the result of the polarity in
hydrogen bonding, high specific heat value, and its versatile solvent properties
The sum of all chemical reactions that occur in an organism is ✔✔metabolism
The two catabolic pathways that lead to cellular energy production are ✔✔cellular respiration
and fermenation
When plants do not receive enough water their photosynthetic rated drops. This is because:
✔✔water is a raw material for the light reactions in photosynthesis
72 Chromosomes undergo meiosis. How many chromosomes will be in each gamete? ✔✔36
What process shows how information is transformed to make protein? ✔✔DNA-RNA-Protein
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