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Questions Bank (1402067 total)

In a primary scientific journal article, the 'Introduction' section:

Contains a literature review and explains why the experiments were performed and what was being tested

100%

Lists the reagents and equipment used, and explains how the experiments were performed

Explains how data relates to and extends what was already known in the field

Is a very brief summary or overview of the entire article

Shows the data obtained and states what was discovered

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In the lab, used coverslips should be disposed of:

In the sharps bins

100%

In the biohazard bins as they have been contaminated by specimens

In the domestic waste bins

In the chemical waste bins as they may have been in contact with chemical stains

As directed by your lab supervisor

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Which one of the following processes is represented in the figure below:

Apoptosis

Receptor-mediated endocytosis

Exocytosis

Phagocytosis

Pinocytosis

100%

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A glycosidic bond is formed between which monomers:

all of the above

amino acids

nucleotides

fatty acids and glycerol

monosaccharides

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You disrupt all hydrogen bonds in a protein. What level of structure will be preserved?

ATP formation by glycolysis:

Involves substrate-level phosphorylation

100%

Is the highest energy yielding process of the cell

None of the above

Occurs only through aerobic respiration

Requires oxygen

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All amino acids share a common structure that consists of a central carbon atom attached to:

A phosphate group, a variable side chain, and a hydrogen atom

A carboxyl group, a nitrogenous base, a hydrogen atom and an R group

An R group, a hydroxyl group, a nitrogenous base and a carboxyl group

A hydrogen atom, a carboxyl group, an amino group and a variable side chain

100%

An alpha carbon, a hydrogen atom, an R group and a nitrogenous base

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During redox reactions:

The loss of electrons from one substance is called reduction

A substance always gains a molecule of oxygen

Protons from one molecule replace the electrons lost from another molecule

Electrons are lost from one substance and added to another substance

A substance that gains electrons is said to be oxidized

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Which of the following is present in both bacteria and animal cells?

endoplasmic reticulum

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Thylakoids, DNA and ribosomes are all components found in:

an animal cell

the endomembrane system

a nucleus

a chloroplast

a mitochondria

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