B1.1.3 - Specialised Cells Flashcards

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1
Q

How is a nerve cell adapted to carry out its function (job)?

A

It is long and thin so can send messages all over the body.

It has connecitons at each end to connect with other nerve cells.

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2
Q

What is the funciton of the jelly layer on a human egg cell?

A

To attract sperm.

To protect the egg.

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3
Q

How is a sperm cell adapted to carry out its function (job)?

A

They have a streamlined shape, to help them swim.

They contain mitochondria to give energy to their tail.

They have a tail for movement.

They have a pointed head that can burrow into the egg.

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4
Q

What is the function (job) of a sperm cell?

A

To carry male genetic information.

To fertilise an egg.

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5
Q

How is a root hair cell adapted to carry out its function (job)?

A

It has a long, thin root hair which creates a large surface area for absorbing water and nutrients.

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6
Q

What is a specialised cell?

A

A cell that is adapted (has special features).

So that it can carry out a specific function (job).

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7
Q

What is the funciton of the fat stores in a human egg cell?

A

To provide energy for the developing embryo (early form of a baby)

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8
Q

What is the red pigment in red blood cells called that allows the cell to carry oxygen?

A

Haemoglobin

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9
Q

What is the function of a red blood cell?

A

They transport oxygen around the body.

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10
Q

How is a leaf cell adapted to carry out its function (job)?

A

It is long and thing which provides a big surface to capture sunlight.

It contains many chloroplasts which carry out photosynthesis.

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11
Q

Which type of specialised cell is this?

A

A nerve cell

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12
Q

What is the function (job) of a nerve cell?

A

To carry electrical impulses around the body.

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13
Q

What is the funciton of a root hair cell?

A

To help plants absorb nutrients and water from soil.

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14
Q

How are red blood cells adapted to carry out their function (job)?

A

They contain haemoglobin (red pigment) that joins with oxygen.

They have no nucleus so more room for oxygen.

They have a disklike shape to increase the surface area that oxygen can bind to.

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15
Q

Which type of specialised cell is shown below?

A

Root hair cell

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16
Q

Why do root hair cells not have chloroplasts like most plant cells?

A

Because they are underground - no light for them to carry out photosynthesis.

17
Q

What is the function of a leaf cell?

A

To carry out photosynthesis and make food for the plant.