Nov Mock revision 5th form

What is the genetic material in prokaryotic cells found in?

• A single circular chromosome

• A double helix chromosome

• A linear chromosome

• A nucleus

What is saprotrophic nutrition?

• Nutrition through photosynthesis

• Nutrition by secreting digestive enzymes onto dead organisms

• Nutrition by absorbing sunlight

• Nutrition by consuming other living organisms

Which of the following is a characteristic of eukaryotic cells?

• They lack a nucleus.

• They have a proper nucleus containing linear chromosomes of DNA.

• They do not have organelles with outer membranes.

• They are always single-celled.

What is the main storage carbohydrate in animals?

• Starch

• Glycogen

• Sucrose

• Cellulose

Which of the following is NOT a characteristic of fungi?

• They feed by saprotrophic nutrition.

• Their cells have chitin cell walls.

• They store carbohydrates as starch.

• They consist of threads of cells called hyphae.

What is the main storage carbohydrate in plants?

• Glycogen

• Starch

• Chitin

• Glucose

What are the building blocks of fats (lipids)?

• Amino acids and glycerol

• Fatty acids and glycerol

• Glucose and fatty acids

• Nucleotides and glycerol

Which of the following is NOT a function of fats (lipids)?

• Energy storage

• Thermal insulation

• Electrical insulation

• Growth

Which of the following is NOT a function of proteins in the body?

• Structural molecules like collagen

• Controlling chemical reactions as enzymes

• Storing genetic information

• Transporting molecules like haemoglobin

What is the purpose of Benedict’s solution in biological testing?

• To test for starch

• To test for proteins

• To test for reducing sugars

• To test for lipids