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Biology
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13 Dec 2019

A living cell that contains DNA, RNA, ribosomes, a nucleus, and a cell wall is a:

A. Plant cell

B. Bacterium

C. Animal cell

D. Virus

A living cell that contains DNA, RNA, ribosomes, a nucleus, and no cell wall is a:

A. Plant cell

B. Bacterium

C. Animal cell

D. Virus

Living cell that contains DNA, RNA, ribosomes, and a cell wall (select all that apply).

A. Plant cell

B. Bacterium

C. Animal cell

D. Virus

Living cell that contains DNA, RNA, and ribosomes (select all that apply)

A. Plant cell

B. Bacterium

C. Animal cell

D. Virus

A biological entity that lacks cytoplasm and ribosomes.

A. Plant cell

B. Bacterium

C. Animal cell

D. Virus

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Hubert KochLv2
17 Dec 2019
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Related questions

QUESTION 1: The rabies virus primarily affects the nervous system. The specificity that the rabies virus has for neuronal host cells is primarily dictated by __________________________.

A. the helical shape of its viral capsid
B. the type of nucleic acid used for its viral genome (single-stranded, antisense RNA)
C. the spikes that protrude from its viral envelope
D. the segmented nature of its viral genome

QUESTION 2: Which of the following genome types has been observed in viruses? To be marked correct, you'll need to select all true statements, as there may be more than one correct answer.

A. Single-stranded RNA
B. Single-stranded DNA
C. Double-stranded RNA
D. Protein-based

QUESTION 3: Choose the correct statement about viral evolution.

A. RNA and DNA viral genomes evolve at equal rates.
B. Cellular genomes mutate at a faster rate than viral genomes due to their large size and increased chance of replicative mistakes.
C. DNA viruses mutate faster than RNA viruses because thymine is more susceptible to mutation than uracil.

D. RNA viruses mutate faster than DNA viruses due to a lack of proofreading replicative enzymes.

QUESTION 4: Your elderly patient is affected by shingles. After careful observation, you note that the virus responsible for the infection has an icosahedral capsid, is enveloped, and has double-stranded linear DNA as its genetic material. Based on this information, in which of the following viral families would you group this viral pathogen?

A. Hepadnaviridae
B. Parvoviridae
C. Coronaviridae
D. Herpesviridae

QUESTION 5: Which of the following is a key difference between lytic and lysogenic bacteriophage replication cycles?

A. Lysogenic bacteriophages release via host cell lysis, whereas lytic bacteriophages bud off from the host cell membrane.
B. The lytic replication cycle ends with host cell lysis and release of newly formed bacteriophage particles, whereas lysogenic replication leads to prophage formation.
C. Lytic replication requires an uncoating step, whereas in lysogenic replication, the bacteriophage's nucleic acid is directly injected into the host cell.

D. Whereas lytic replication enables the infection of several hosts, lysogenic replication only allows for infection of a single host cell.

QUESTION 6: Which of the following is an unsuitable culture method for an animal virus?

A. Direct inoculation of virus onto blood agar
B. Live animal inoculation
C. Tissue culture method
D. Injection of virus into embryonated eggs

1,Match the descriptions to the type of transport.

- A. B. C.

Water enters a cell because it is hypertonic compared to the extracellular environment, increasing its turgor pressure
- A. B. C.

Water enters guard cells because the guard cells are hypertonic compared to the surrounding cells
- A. B. C.

Potassium ions are pumped into guard cells
- A. B. C.

The motor cells of a Venus fly trap are hypotonic compared to surrounding cells, causing water to leave the motor cells
- A. B. C.

Sugar is loaded into the phloem
A.

Both active and passive transport
B.

Passive Transport
C.

Active transport

2,Describe what is wrong with the following statement and explain why:

All prokaryotic and eukaryotic cells contain plasma membrane, nucleus, ribosomes, organelles, cytoplasm, and cell walls.

What is short-distance transport?

a,

The movement of solutes from a region of low concentration to a region of high concentration

b,The movement of water, nutrients, and other substances between cells
c,

The movement of substances from a region of high concentration to a region of low concentration
d,

The movement of water across a semipermeable membrane from a region of low solute concentration to a region of high solute concentration.

What terms describe the movement of water across a semipermeable membrane from a region of high water concentration towards a region of low water concentration (and high solute concentration.)

What is found in the proptoplasm?

Cell wall, cytoplasm, plasma membrane, nucleus, and other cell organelles

Plasmodesmata, cell wall, and plasma membrane

Cell wall, cytoplasm, and plasma membrane

Cytoplasm, nucleus, and other cell organelles

The channels that allow nutrients and protoplasm to pass between plant cells are called _________________.

What happens when a plant cell is placed in a hypotonic solution?

Water will enter the plant cell and the plasma membrane will swell and cell lysis will occur

Water will leave the plant cell and the plasma membrane will pull away from the cell and plasmolysis will occur

Water will enter the plant cell and the plasma membrane will swell and push against the cell wall

Water will leave the plant cell and the plant cell will lose turgor pressure, causing the plant to wilt

________________ transport uses cellular energy.

What molecules make plasma cell membranes hydrophilic on the outside and hydrophobic on the inside?

What type of cells do plants have?

Bacterial

Archaeic

Eukaryotic

Prokaryotic

17.

One reason why plants require water is that water broken down during which of the folllowing reactions?

oxidative phosphorylation

the light reaction

the Calvin Cycle

anaerobic respiration

18.

Which molecule would you expect to find in a plant cell but NOT an animal cell?

Acetyl CoA

NADP

ATP

NADH

19.

The enzyme RuBisCO would most likely be found in _____.

animal cell

all of the above

a virus

green algae

20.

Which of the following is NOT true of human chromosomes?

They contain DNA and proteins.

They are linear (i.e. not circular).

There is one pair of sex chromosomes in most cells of the body.

There are 64 pairs of chromosomes.

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