Biochemistry

Question: Microtubules, motor proteins, and actin filaments are all part of
[A].

the mechanism of photosynthesis that occurs in chloroplasts

[B].

the rough ER (endoplasmic reticulum) in prokaryotic cells

[C].

the cytoskeleton of eukaryotic cells

[D].

the process that moves small molecules across cell membranes

Answer: Option C

Explanation:

No answer description available for this question.

Question: In which of the following cell organelles, it is expected to find the biochemical reactions that harness energy from the breakdown of sugar molecules to synthesize large amounts of ATP?
[A].

Lysosome

[B].

Vesicles

[C].

Mitochondria

[D].

Plasma membrane

Answer: Option C

Explanation:

No answer description available for this question.

Question: Lysosomes are specialized vesicles in __________ that contain digestive enzymes for the breakdown of food. A related organalle known as a vacuole, which is found in __________ , also contains enzymes but in addition may act as a storage organelle for nutrients or water.
[A].

animals; plants and fungi

[B].

plants; animals and fungi

[C].

plants and fungi; animals

[D].

animals and plants; fungi

Answer: Option A

Explanation:

No answer description available for this question.

Question: Which of the following statements about prokaryotes is false?
[A].

Prokaryotic cells concentrate important materials for the cells survival

[B].

The substance known as cytosol is found within the bacterial nucleus

[C].

Prokaryotic cells are much smaller than most eukaryotic cells

[D].

Ancient prokaryotes may have given rise to some eukaryotic organelles

Answer: Option B

Explanation:

No answer description available for this question.

Question: A certain cell organelle which is made of a double phospholipid bilayer that has many large pores in it, is most likely
[A].

the nuclear envelope

[B].

the plasma membrane

[C].

the mitochondrion

[D].

the cytoskeleton

Answer: Option A

Explanation:

No answer description available for this question.

Question: Which of the following structures is expected in a bacterium?
[A].

Nucleus

[B].

Plasma membrane

[C].

Golgi apparatus

[D].

Endoplasmic reticulum

Answer: Option B

Explanation:

No answer description available for this question.

Question: In which of the following cell types more cellular detail can be observed using an electron microscope compared to a light microscope?
[A].

Animal

[B].

Bacterial

[C].

Protist

[D].

All of these

Answer: Option D

Explanation:

No answer description available for this question.

Question: In terms of basic cell structure, what do an elephant and an oak tree have in common?
[A].

They both are eukaryotes

[B].

They both have a cell nucleus

[C].

They both have mitochondria

[D].

All of the above

Answer: Option D

Explanation:

No answer description available for this question.