4/19/24, 11:27 PM First Quarter Exam: Attempt review

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Started on Friday, 19 April 2024, 8:57 PM

Question 1

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It is the diffusion of water molecules across a selectively permeable membrane from in area a higher concentration to an of lower
concentration.

Select one:
a. endocytosis
b. Active transport
c. osmosis
d. Phagocytosis

Question 2

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diplotene  stage occurs when the synaptonemal complex degrades and homologous chromosomes disassociate slightly from
each other.

Question 3

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The stage occurs as the chromosomes pair with their homologue forming homologous chromosomes pairs.

Answer: zygotene 

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4/19/24, 11:27 PM First Quarter Exam: Attempt review

Question 4

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True or False: All cells come from the other cells.

Answer: true 

Question 5
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True or False: The smaller subunit binds to thee transfer RNA (tRNA) while the larger subunits find to the mRNA pattern.

Answer: false 

Question 6

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It describes the process of vesicles fusing with the plasma membrane and releasing their contents to the outside cell.

Select one:
a. active transport
b. exocytosis
c. pinocytosis
d. endocytosis

Question 7

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Anyone can be a carrier of the Tay-Sachs mutation, but the disease is most common among this people.

Answer: ashkenazi jewish population 

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4/19/24, 11:27 PM First Quarter Exam: Attempt review

Question 8

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True or False: Cells as the primary building block of life.

Answer: true 

Question 9
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True or False: The greater the surface area to volume ratio of a cell the easier it is for the cell to get rid of wastes and take it essential
materials such as oxygen and nutrients.

Answer: true 

Question 10
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True or False: Single-celled organisms like bacteria are obviously composed of three cells.

Answer: false 

Question 11
Correct

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It is the diffusion of water molecules across a selectively permeable membrane from an area of higher concentration to an area of
lower concentration.

Select one:
a. phagocytosis
b. active transport
c. osmosis
d. solution

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4/19/24, 11:27 PM First Quarter Exam: Attempt review

Question 12

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Ability of an organism to maintain stable internal conditions such body temperature, regardless of outside conditions.

Answer: homeostasis 

Question 13
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This is the process of capturing a substance of particle from outside the cell by engulfing it with the cell membrane.

Select one:
a. osmosis
b. Phagocytosis
c. Active transport
d. endocytosis

Question 14
Correct

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It is a kind of disorder that can be inherited in a dominant or recessive manner.

Select one:
a. G to A point mutation
b. Autosomal recessive
c. Hemophilia A
d. Achondroplasia

Question 15
Correct

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It is to transport of two substrates in the same direction across the membrane.

Select one:
a. phagocytosis
b. Endocytosis
c. active transport
d. Symport

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4/19/24, 11:27 PM First Quarter Exam: Attempt review

Question 16

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The mixture of a solute in a solvent.

Select one:
a. Solution
b. osmosis
c. active transport
d. Mixture

Question 17

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True or False: A bigger cell is more effective and transporting materials, including waste products, than a smaller cell.

Answer: false 

Question 18
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True or False: Cells are essentially carbohydrates lipids, proteins and nuclei acids in a water environment.

Answer: true 

Question 19

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True or False: Sclerenchymal cells strengthen and support parts of the plant which have completed elongation.

Answer: true 

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4/19/24, 11:27 PM First Quarter Exam: Attempt review

Question 20

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True or False: All metabolic functions carried out by a prokaryotic take place in the plasma membrane or the cytosol.

Answer: true 

Question 21
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Human cells have 23  pairs of chromosomes

Question 22
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The action potential signalling contraction is passed efficiently and effortlessly.

Answer: gap junction 

Question 23
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cytoplasm  serves as a “jelly” in which organelles are suspended and held together by the cell membrane.

Question 24
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A “cellular eating” occurs when the dissolved materials enter the cell.

Select one:
a. endocytosis
b. Active transport
c. osmosis
d. Phagocytosis

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4/19/24, 11:27 PM First Quarter Exam: Attempt review

Question 25

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During this phase, the cell makes final preparations to divide.

Answer: growth phase 2 

Question 26
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trasnport  protein assists molecules entering or leaving the cell.

Question 27
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meiosis  begins after DNA replicates during interphase of the cell cycle.

Question 28
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True or False: Big cells, such as white blood cells, often grow more nuclei so that they can supply enough proteins and RNA.

Answer: true 

Question 29
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True or False: As a cell grows, its volume decreases more quickly that its surface area.

Answer: false 

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4/19/24, 11:27 PM First Quarter Exam: Attempt review

Question 30

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Match the definition to the term it defines.

A sheet of cytoplasm that bisects the middle of the cell. Phragmosome 

The exchange of genetic materials between non-sister chromatids of homologous chromosomes. Crossing over 

It is the final step in cell division. Cytokinesis 

It is a cellular "scaffolding" or "skeleton" that crisscrosses the cytoplasm. Cytoskeleton 

The division of the cell's nucleus wherein the final step before two daughter cells are produced. Mitosis 

The process of pairing the homologous chromosomes Synapsis 

It is essentially the opposite of prophase and prometaphase. Telophase 

It is a cell junction specialized for cell-to-cell adhesion. Desmosome 

It actually includes both mitosis and cytokinesis. Mitotic phase 

An outer gelatinous layer that both joins and separates adjacent plant cells. Middle lamella 

Your answer is correct.

Question 31
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True or False: The Cell Theory has withstood intense examination of cells by modern powerful microscope and other instruments.

Answer: true 

Question 32

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In this stage, chromosomes further condense.

Answer: diakinesis stage 

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4/19/24, 11:27 PM First Quarter Exam: Attempt review

Question 33

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True or False: Tubulin are protein that forms microtubules.

Answer: true 

Question 34
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True or False: Cells share the same needs.

Answer: true 

Question 35

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Collagen genes that result in bone disorders, specifically the spectrum of osteogenesis, imperfect or brittle bone disease.

Answer: type 1 collagen genes 

Question 36
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The most common form of dwarfism in humans, and it is caused by a dominant mutation.

Answer: achondroplasia 

Question 37

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During this stage, the nucleus membrane disintegrates and microtubule spindles invade the center of the cell.

Answer: prometaphase 

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4/19/24, 11:27 PM First Quarter Exam: Attempt review

Question 38

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It is type of vacuole that removes excess water from a cell.

Select one:
a. Contractile vacuole
b. Solutions
c. osmosis
d. active transport

Question 39

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True or False: An increased surfaced area to volume ratio means decreased exposure to the environment.

Answer: false 

Question 40
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It is an autosomal recessive genetic disorder characterized by the inability to metabolize the amino acid pheylalanine.

Answer: phenylketonuria 

Question 41

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A representation of genetic inheritance.

Select one:
a. homozygous
b. Haemophilia
c. autosomal recessive
d. Pedigree

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