Unit 3 Photosynthesis/Respiration Test

Which best describes the relationship between DNA and proteins?

• DNA codes for amino acids, amino acids make proteins.

• DNA and proteins have the same structure and function to make carbohydrates

• DNA and proteins are nucleic acids that function to maintain oxygen in the respiratory system

• DNA and proteins are made of polymers that function to control what enters and leaves the cell.

The organic molecules used for long term energy storage are

• lipids

• proteins

• nucleic acids

• carbohydrates

The organic molecule that is correctly paired with its basic building block is....

• carbohydrate: amino acids

• nucleic acid: nucleotides

• lipid; monosaccharides

• protein: fatty acids

Why are enzymes essential to organisms?

• they are catalysts for biochemical reactions in cells

• they provide short term/long term energy for cells

• they provide instruction to trait determination and protein synthesis

• they create semipermeable barriers to separate the inside of the cell from the outside environment

Substances that break large food molecules into smaller molecules and serve as catalysts for reactions are

• enzymes

• vitamins

• lipids

• nucleotides

Enzymes belong to this organic compounds category

• lipids

• proteins

• nucleic acids

• carbohydrates

The rate of photosynthesis is affected least by

• water

• oxygen

• light energy

• carbon dioxide

The amount of energy that results from fermentation in comparison with that of aerobic respiration

• aerobic respiration results in less energy

• aerobic respiration results in more energy

• each process results in equal amounts of energy

• each process results in a variety of energy amounts

The plant cell organelles that capture sunlight and produce sugars are

• vacuoles

• ribosomes

• mitochondria

• chloroplasts

Aerobic respiration is different from anaerobic respiration by

• anaerobic respiration requires oxygen

• anaerobic respiration does not require oxygen

• anaerobic respiration occurs only at the cellular level

• anaerobic respiration occurs only outside the cell