Midterm review

The initial steps in gene expression are modeled. Double-stranded DNA first unwinds into two strands. Which process and product are represented in the diagrams?

• Process: transcription; product: mRNA

• Process: translation; product: protein

• Process: replication; product: tRNA

• Process: recombination; product: polymerase

Tags

NGSS.HS-LS1-1

Name the process in the picture.

• transcription
• mitosis
• translation
• replication

Tags

NGSS.HS-LS1-1

Name B.

• phosophate
• glucose
• deoxyribose
• nitrogen base

The diagram represents one way an enzyme can be inhibited. Which statement explains the effect of an inhibitor on an enzyme?

• A substrate will be able to bond with the enzyme.

• The enzyme will likely be attacked by immune cells

• The enzyme will be unable to produce more enzymes.

• A substrate will be unable to attach to the enzyme.

the section of dna has these bases:

TAG CAG TAC

which mRNA sequence is produced from this DNA section

• ATC GTC ATG

• AUC GUC AUG

• AUG CUG AUC

• UTC GTC UTG

Viruses are considered nonliving because they need a host to reproduce.

• True

• False

A cell _______ in a hypertonic solution because water moves _______ the cell.

• shrinks; out

• shrinks; in

• swells; out

• swells; in

Tags

NGSS.HS-LS1-3

Passive transport requires ATP while active does not.

• True

• False

Which of the following follows the concentration gradient (high to low) but requires a transport protein?

• diffusion

• osmosis

• facilitated diffusion

• active transport

A ​ (a)   ​ is ​ living. A ​ (b)   is nonliving.

• bacteria
• virus

Tags

NGSS.MS-LS1-1