$CATEGORY: Science - Khan Academy/6.Life Processes/6.Life Processes--Transportation

//Multiple Choice

Which tissue transports water and minerals in plants? {
    ~Phloem
    =Xylem
    ~Parenchyma
    ~Collenchyma
}

Phloem is responsible for transporting\: {
    ~Water
    ~Minerals
    =Organic nutrients
    ~Oxygen
}

Which component of xylem helps in the transport of water? {
    ~Sieve tubes
    =Tracheids
    ~Companion cells
    ~Phloem parenchyma
}

The sieve plates are found in\: {
    ~Xylem vessels
    =Phloem sieve tubes
    ~Phloem parenchyma
    ~Xylem tracheids
}

The process by which water is lost from leaves is called\: {
    =Transpiration
    ~Respiration
    ~Photosynthesis
    ~Excretion
}

Xylem vessels are\: {
    =Dead cells
    ~Living cells
    ~Semi-living cells
    ~Non-cellular
}

Which part of the plant has the highest rate of transpiration? {
    ~Roots
    ~Stems
    =Leaves
    ~Flowers
}

The transport of food in plants occurs through\: {
    ~Osmosis
    ~Active transport
    =Phloem
    ~Xylem
}

What is the main function of companion cells in phloem? {
    ~Storage of nutrients
    =Providing energy to sieve tubes
    ~Transport of water
    ~Support
}

Which of the following is not a part of vascular tissue? {
    ~Xylem
    ~Phloem
    =Epidermis
    ~Tracheids
}

//True or False

Xylem transports food in plants. {F}

Phloem sieve tubes are living cells. {T}

Transpiration helps in the absorption of water by roots. {T}

Companion cells are part of xylem tissue. {F}

Xylem vessels are dead cells. {T}

Phloem fibers are the only dead cells in phloem. {T}

Transpiration occurs through stomata. {T}

The ascent of sap occurs due to gravity. {F}

Phloem translocates water from roots to leaves. {F}

Xylem is responsible for the mechanical support of the plant. {T}

//Fill in the blanks

______ transports water and minerals from roots to leaves. {
    =Xylem
    ~Phloem
}

Phloem transports ______ from leaves to other parts of the plant. {
    =Food
    ~Water
}

The main conducting cells in xylem are ______ and vessels. {
    =Tracheids
    ~Sieve tubes
}

______ is the loss of water in the form of vapor from aerial parts of the plant. {
    =Transpiration
    ~Respiration
}

Phloem consists of sieve tubes, companion cells, phloem parenchyma, and ______. {
    =Phloem fibers
    ~Tracheids
}

Xylem vessels are made of ______ cells. {
    =Dead
    ~Living
}

The energy required for translocation in phloem is provided by ______. {
    =ATP
    ~Glucose
}

The upward movement of water in plants is called ______. {
    =Ascent of sap
    ~Translocation
}

Phloem sieve tubes are associated with ______ cells. {
    =Companion
    ~Tracheid
}

Xylem vessels and tracheids are connected by ______ pits. {
    =Bordered
    ~Simple
}

//Numericals

A tree absorbs 50 liters of water in a day. If 90% of it is lost through transpiration, how much water is retained? {
    ~5 liters
    =10 liters
    ~15 liters
    ~20 liters
}

If the length of a xylem vessel is 20 cm and it transports 2 cm³ of water per minute, how much water will it transport in 10 minutes? {
    =20 cm³
    ~10 cm³
    ~30 cm³
    ~40 cm³
}

A plant transpires 200 mL of water in 4 hours. What is the average rate of transpiration per hour? {
    =50 mL/hour
    ~40 mL/hour
    ~60 mL/hour
    ~80 mL/hour
}

A phloem transports 500 grams of sugar in 5 hours. What is the rate of transport? {
    ~50 g/hour
    =100 g/hour
    ~200 g/hour
    ~125 g/hour
}

If a plant absorbs 100 mL of water and loses 70% of it, how much water is retained? {
    ~70 mL
    =30 mL
    ~50 mL
    ~90 mL
}

A plant's xylem transports 300 mL of water in 3 hours. What is the rate of transport per hour? {
    ~50 mL/hour
    =100 mL/hour
    ~150 mL/hour
    ~200 mL/hour
}

If a plant transpires 1 liter of water in 10 hours, what is the transpiration rate per minute? {
    =10 mL/min
    ~5 mL/min
    ~20 mL/min
    ~15 mL/min
}

A plant absorbs 400 mL of water daily, and 25% is used for photosynthesis. How much water is used for photosynthesis? {
    =100 mL
    ~200 mL
    ~300 mL
    ~400 mL
}

If a plant has 5 xylem vessels, each transporting 2 mL of water per minute, how much water is transported in 10 minutes? {
    ~50 mL
    =100 mL
    ~200 mL
    ~300 mL
}

A plant loses 80 mL of water in 8 hours. What is the transpiration rate per hour? {
    ~8 mL/hour
    =10 mL/hour
    ~12 mL/hour
    ~15 mL/hour
}

//Match the following

Match the following items from Column A with their correct corresponding options from Column B\:
{
=Xylem -> Dead Cells
=Phloem -> Transport of food
=Transportation -> Loss of water vapour
=Companion Cells -> Associated with sieve tubes
}


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