BIOLOGY PRACTICE TEST

Large food molecule like starch is broken down by enzyme amylase into a small food molecule called ___________.

• maltose

• amino acids

• fatty acids

• nucleic acids

Protein is a large food molecule that is broken down by enzyme protease into smaller food molecule called _________.

• fatty acids

• glucose

• amino acids

• nucleotide

Figure 1 below shows the results of an investigation into the effect of temperature on the rate of activity of an enzyme. What is the independent variable in this investigation?

• temperature

• enzyme activity

• type of enzyme

• boiling point

How many different temperatures were investigated?

• 4

• 6

• 8

• 10

What is the highest and lowest temperature that was investigated?

• 40 and 10

• 50 and 10

• 60 and 10

• 30 and 10

What is the temperature at which enzyme activity appears to be at its highest rate?

• 40 ^oC

• 36 ^oC

• 40 ^oC

• 30 ^oC

Which of the following cell structures is involved in exchanging molecules (coming in and out of molecules)?

• ribosomes

• cell membrane

• cytoplasm

• chloroplast

Which of the following cell structures is the site for protein synthesis?

• cell membrane

• mitochondria

• ribosomes

• chloroplast

Which of the following is the site for aerobic respiration or cell respiration?

• chloroplast

• mitochondria

• cell membrane

• ribosomes

The site for photosynthesis is _____________.

• mitochondria

• chloroplast

• ribosomes

• cell membrane