IB Biology Paper 1

What is the function of a plasmid?

• The site of respiration in prokaryotes
• The site of photosynthesis in eukaryotes
• The site of protein synthesis in prokaryotes and eukaryotes
• The site of hereditary material in prokaryotes

Which cell structure is correctly paired with its primary function?

• ribosome - movement
• mitocondrion - energy production
• vacuole - cell division
• nucleus - storage of nutrients

A chromatid is attached to a spindle fiber by the

• centriole
• cleavage furrow
• centromere
• centriole

Tags

NGSS.HS-LS1-4

Pancreas cells and muscle cells from the same person are ______ and differ in their _____:

• undifferentiatied, genes
• differentiated, alleles
• differentiated, gene expression
• stem cells, protein synthesis

Tags

NGSS.HS-LS1-4

NGSS.HS-LS3-1

Identify the phase of mitosis

• prophase

• metaphase

• anaphase

• telophase

Tags

NGSS.HS-LS1-4

The spreading of cancerous cells is called

• metastasis
• carcinogenesis
• angiogenesis
• homeostasis

Which ratio limits the size of cells?

• The rate of metabolism to mass
• The surface area to volume
• The mass to volume
• The volume to surface area

Stem cells are

• cells that grow uncontrollably

• undifferentiated and can form any type of cell

• never go through cell division

• only found in embryos

Tags

NGSS.HS-LS1-4

Why were mitochondria and chloroplasts once believed to be prokaryotic organisms?

• They both contain ribosomes and a plasma membrane.
• They both contain their own DNA and reproduce by binary fission.
• They both contain DNA found in modern bacteria and reproduce sexually.
• They both contain their own nuclei and plasma membranes.

Tags

NGSS.HS-LS4-1

Which is Prophase?

• A
•  F
• C
• A & F 

Tags

NGSS.HS-LS1-4