10AB- First Week

Which of the following is a function of ribosomes in a cell?

• Energy production
• Cell division
• DNA replication
• Protein synthesis

What is the main difference between diffusion and active transport?

• Diffusion requires energy; active transport does not

• Active transport moves substances along a concentration gradient

• Active transport requires energy from ATP, diffusion does not

• Diffusion requires carrier proteins

Which structure is found in plant cells but not in animal cells?

• Ribosomes

• Cell wall

• Mitochondria
• Lysosomes

What are proteins made of?

• Proteins are made of carbohydrates.
• Proteins are made of amino acids.
• Proteins are made of nucleotides.
• Proteins are made of fatty acids.

Which process results in the production of glucose and oxygen?

• Photosynthesis
• Nitrogen fixation
• Fermentation
• Cellular respiration

Which of the following is a feature of xylem vessels?

• Presence of chlorophyll for photosynthesis.
• Thin, non-lignified walls for flexibility.
• Transport of nutrients and sugars only.
• Thick, lignified walls for support and water transport.

Which component of blood is responsible for oxygen transport?

• Plasma
• White blood cells
• Red blood cells
• Platelets

Which of the following best describes an enzyme’s active site?

• The part of the enzyme that determines its shape.
• The area where enzymes are produced in the cell.
• The location where enzymes are stored before use.
• The region on an enzyme where substrate molecules bind and reactions occur.

Which organelle is responsible for aerobic respiration?

• Nucleus
• Ribosome
• Chloroplast
• Mitochondria

Harry is conducting an experiment in the school laboratory to test a food sample for starch. Which reagent should he use?

• Benedict's solution

• Fehling's solution

• Iodine solution

• Biuret reagent