Animal Nutrition: Understanding Calories, Carbohydrates, Proteins, and Fats
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Questions and Answers

What is the role of carbohydrates in the body?

  • Mainly serve as a major energy source for cells (correct)
  • Contain essential amino acids for enzyme synthesis
  • Serve as building materials for cell structures
  • Used to build cell membranes and hormones

How many calories per gram do fats typically contain?

  • 6
  • 4
  • 2
  • 9 (correct)

Which nutrients are essential for animals and must be obtained from their diet?

  • Vitamins and trace elements
  • Essential amino acids and fatty acids (correct)
  • Carbohydrates and proteins
  • Fats and proteins

What is the main function of proteins in the body?

<p>Aiding in enzyme synthesis (D)</p> Signup and view all the answers

Which vitamins are considered water-soluble?

<p>Vitamin B12 and C (B)</p> Signup and view all the answers

What are trace elements/minerals needed by the body for?

<p>Inorganic nutrients required in minute amounts (B)</p> Signup and view all the answers

What is the process called when a cell engulfs organic fragments or large particles?

<p>Phagocytosis (A)</p> Signup and view all the answers

Which type of animals suck fluids containing nutrients from a living host?

<p>Fluid-Feeders (C)</p> Signup and view all the answers

What type of digestive system is composed of a single opening for both food intake and waste removal?

<p>Gastrovascular Cavity (A)</p> Signup and view all the answers

Which organ secretes bile for emulsifying fats in a complete digestive system?

<p>Liver (C)</p> Signup and view all the answers

What is the name for animals that draw in water to strain small organisms and food particles present in the medium?

<p>Filter-Feeders (A)</p> Signup and view all the answers

Which process relies on membrane receptor recognition of specific solutes for uptake by the cell?

<p>Receptor-mediated endocytosis (C)</p> Signup and view all the answers

Flashcards

What is the role of carbohydrates in the body?

Carbohydrates are mainly used by cells as a primary energy source.

How many calories per gram do fats typically contain?

Fats contain 9 calories per gram, making them a dense energy source.

Which nutrients are essential for animals and must be obtained from their diet?

Essential amino acids and fatty acids are vital for animal health but cannot be synthesized by their bodies, so they must be obtained from their diet.

What is the main function of proteins in the body?

Proteins play a crucial role in enzyme synthesis, which catalyzes biochemical reactions in the body.

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Which vitamins are considered water-soluble?

Vitamin B12 and C are water-soluble vitamins, meaning they dissolve in water and are not stored in the body.

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What are trace elements/minerals needed by the body for?

Trace elements/minerals are inorganic nutrients required in very small amounts by the body for various metabolic processes.

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What is the process called when a cell engulfs organic fragments or large particles?

Phagocytosis is a process where a cell engulfes large particles, like bacteria or cellular debris, by surrounding them with its membrane.

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Which type of animals suck fluids containing nutrients from a living host?

Fluid-feeders are animals that obtain nutrients by sucking fluids from living hosts.

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What type of digestive system is composed of a single opening for both food intake and waste removal?

A gastrovascular cavity is a digestive system with a single opening serving as both mouth and anus for ingestion and waste removal.

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Which organ secretes bile for emulsifying fats in a complete digestive system?

The liver secretes bile, which helps emulsify fats, breaking them down into smaller droplets for easier digestion.

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What is the name for animals that draw in water to strain small organisms and food particles present in the medium?

Filter-feeders draw in water and strain out tiny organisms and food particles suspended in the water.

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Which process relies on membrane receptor recognition of specific solutes for uptake by the cell?

Receptor-mediated endocytosis is a process where cells take up specific molecules by binding to receptors on their membrane.

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Study Notes

Carbohydrates

  • Serve as the primary source of energy for the body.
  • Play a crucial role in metabolism and the functioning of cells.

Fats

  • Contain approximately 9 calories per gram, making them dense energy sources.

Essential Nutrients for Animals

  • Include amino acids, fatty acids, vitamins, and minerals that must be obtained through diet.

Proteins

  • Fundamental for building and repairing tissues.
  • Serve as enzymes and hormones, playing roles in various biochemical processes.

Water-Soluble Vitamins

  • Include vitamin C and B-complex vitamins (like B1, B2, B3, B6, B12, and folate).
  • Essential for energy production, immune function, and red blood cell formation.

Trace Elements/Minerals

  • Needed in small quantities for various physiological functions, including enzyme activity and structural roles in tissues.

Phagocytosis

  • The process by which a cell engulfs organic fragments or large particles, allowing for material uptake.

Parasitic Animals

  • Suck fluids containing nutrients from a living host, often harming the host in the process.

Gastrovascular Cavity

  • A digestive system with a single opening for both food intake and waste removal, typical in simpler organisms.

Liver

  • The organ responsible for secreting bile, which emulsifies fats in the digestive system, aiding in fat digestion and absorption.

Suspension Feeders

  • Animals that draw in water to filter out small organisms and food particles, adapting to aquatic environments.

Receptor-Mediated Endocytosis

  • A cellular process that relies on membrane receptor recognition of specific solutes, facilitating their uptake into the cell.

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Description

Learn about the nutritional requirements of animals, including the concepts of calories as units of energy in food, carbohydrates as a major energy source, proteins for building cell structures, and fats for various functions in the body.

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