Topic 13 Practice Paper: Reproduction — question paper

Section A: Multiple-choice questions[10 marks]

Choose one answer for each question. Each question is worth 1 mark.

1. 1

   Which statement about asexual reproduction is correct?

   1. AIt needs two parents
   2. BOffspring are genetically different
   3. COffspring are genetically identical to one parent
   4. DIt always involves gametes
   ( )
2. 2

   The fusion of gamete nuclei produces a

   1. Ahaploid zygote
   2. Bdiploid zygote
   3. Chaploid gamete
   4. Dnew anther
   ( )
3. 3

   Wind-pollinated flowers attract no insects, so they typically have

   1. Alarge scented petals
   2. Bnectar guides
   3. Csmall dull petals
   4. Dsticky stigmas inside the flower
   ( )
4. 4

   Pollen from a wind-pollinated flower is

   1. Alarge and spiky
   2. Babsent
   3. Csticky and heavy
   4. Dsmall, smooth and light
   ( )
5. 5

   Plant fertilisation happens when

   1. Aa pollen nucleus fuses with an ovule nucleus
   2. Bpollen reaches the stigma
   3. Cthe anther splits
   4. Da seed germinates
   ( )
6. 6

   A seed is unlikely to germinate without

   1. Abright light
   2. Bwater, oxygen and warmth
   3. Csoil
   4. Dfertiliser
   ( )
7. 7

   The role of the prostate gland is to

   1. Aproduce sperm cells
   2. Bstore unfertilised eggs
   3. Cadd fluid to sperm to make semen
   4. Dcarry eggs to the uterus
   ( )
8. 8

   The embryo implants into

   1. Athe oviduct wall
   2. Bthe ovary
   3. Cthe placenta directly
   4. Dthe lining of the uterus
   ( )
9. 9

   At puberty, oestrogen is responsible for

   1. Afemale secondary sexual characteristics
   2. Bmale secondary sexual characteristics
   3. Cstoring glycogen
   4. Dfighting infection
   ( )
10. 10

    Screening donated blood helps control HIV because it

    1. Akills the virus with heat
    2. Bprevents infected blood reaching a new host by transfusion
    3. Cvaccinates recipients
    4. Dchanges the patient’s blood type
    ( )

Section B: Structured questions[20 marks]

Answer all questions in the spaces provided.

1. 11

   Two fields of strawberry plants are grown side by side. Field A was planted with plants grown from runners (asexual). Field B was planted with seedlings raised from cross-pollinated seeds (sexual). (Extended)

   1. (a)

      Describe the genetic relationship between the plants of field A.

      [1]
   2. (b)

      A viral disease infects both fields. Predict and explain which field is more likely to retain some healthy plants.

      [3]
   3. (c)

      State one advantage to a farmer of propagating strawberries by runners.

      [2]
2. 12

   The diagram shows a section through an insect-pollinated flower.

   1. (a)

      Name the structures: the male organ consisting of filament and anther, the female organ consisting of stigma, style and ovary, and the structures inside the ovary.

      [3]
   2. (b)

      Describe how the flower is pollinated and state what happens after the pollen grain lands on the stigma.

      [2]
   3. (c)

      State the event that completes fertilisation in the flower.

      [2]
3. 13

   A health clinic educates patients about HIV. (Extended)

   1. (a)

      Name the type of pathogen that causes HIV infection, and state the condition the infection may lead to.

      [2]
   2. (b)

      Describe two routes by which HIV is transmitted.

      [2]
   3. (c)

      Explain two measures that control the spread of STIs.

      [3]