Multiple Choice
Which of the following organelles is responsible for producing ATP in eukaryotic cells, as would be labeled in a cross section of a sheep brain?
120
views
5. Cell Components
Introduction to Eukaryotic Organelles
Multiple Choice
Which of the following statements is true regarding the cytoplasm of an unfertilized egg?
A
It is completely devoid of mRNA molecules.
B
It lacks mitochondria and ribosomes.
C
It is surrounded by a rigid cell wall.
D
It contains stored nutrients and organelles necessary for early embryonic development.
Verified step by step guidance1
Understand the context of the question: The cytoplasm of an unfertilized egg is a specialized environment designed to support early embryonic development. It contains various components essential for this process.
Step 1: Evaluate the first statement: 'It is completely devoid of mRNA molecules.' This is incorrect because the cytoplasm of an unfertilized egg contains maternal mRNA molecules that are crucial for protein synthesis during early development.
Step 2: Evaluate the second statement: 'It lacks mitochondria and ribosomes.' This is incorrect because mitochondria are essential for energy production, and ribosomes are necessary for protein synthesis, both of which are critical for embryonic development.
Step 3: Evaluate the third statement: 'It is surrounded by a rigid cell wall.' This is incorrect because animal cells, including eggs, are surrounded by a flexible plasma membrane, not a rigid cell wall (which is characteristic of plant cells).
Step 4: Confirm the correct statement: 'It contains stored nutrients and organelles necessary for early embryonic development.' This is true because the cytoplasm of an unfertilized egg is rich in stored nutrients, organelles like mitochondria and ribosomes, and maternal mRNA, all of which are essential for supporting the initial stages of development after fertilization.
Related Videos
Related Practice
