Grade 5: Life Science (Plants, Animals, Human Body)

Plants respond to stimuli in their environment each day. The response a plant has is referred to as a tropism. The plant in Diagram B is responding to what stimuli?

• Light

• Water

• Gravity

• Heat

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Plant organs each have a specific function. What is the function of the stem?

• Absorb nutrients and make food for the plants

• Make food and produce seeds

• Transport nutrients and produce seeds

• Transport nutrients and support the leaves & flowers

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How does the energy from the Sun help the tree make its own food through the process of photosynthesis?

• Green pigment in the stems captures the Sun's light energy and combines it with oxygen from the air to produce seeds that form in flowers

• Green pigment in the leaves captures the Sun's light energy. The tree uses this energy to chemically change water and carbon dioxide into a sugar called glucose

• Heat energy from the Sun warms the leaves. The warmth allows the plant to absorb a sugar called glucose that is produced in the roots

• Heat energy from the Sun converts oxygen and water into a sugar that the plants use to grow

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Which part of the plant responds to warming temperatures and produces seeds or fruits?

• Leaves

• Stems

• Roots

• Flowers

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A student grows three sets of plants for a science fair project. The first set of plants is grown in the windowsill opposite the sunlight. The second set of plants is placed outdoors in a shaded area between the house and a large tree. Finally, the last set is positioned so that they receive direct sunlight. At the end of 12 weeks, all of the plants grown inside have died, the ones in the shaded area have grown an average of 2 inches but are withering, and the last set that received direct sunlight grew an average of 6 inches. Which factor contributed to the difference in the growth of these plants?

• The plants grown indoors and in the shaded areas were given too much sunlight

• The plants grown in direct sunlight probably had more chloroplasts than the other two sets

• The plants grown in direct sunlight were able to use the Sun's energy to make food

• The plants grown indoors and in the shaded area were not given enough water

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The human body is made up of several organ systems that work together as one unit. Which organ functions to break down food into nutrients?

• Kidney

• Heart

• Esophagus

• Stomach

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The skeleton is covered by muscles whose function is to permit movement and maintain posture. Which of the following is NOT a function of those muscles?

• Functions to move parts of the body

• Controls the movement of broken-down food through the stomach

• Functions to produce blood cells

• Controls the movement of blood and oxygen through the heart

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All organs in the human body perform important functions. Which organ controls all of the other organs and is called the control center of the body?

• Stomach

• Small Intestine

• Brain

• Liver

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Which organ filters the blood coming from the digestive system and produces bile to help break down fats in your food?

• Heart

• Pancreas

• Kidneys

• Liver

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Which organ group listed below primarily aids int he digestion process?

• Heart, lungs, arteries

• Stomach, intestines, esophagus

• Bones, ligaments, tendons

• Lungs, trachea, nose

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