BIOLOGY FORM THREE EXAMINATION

BIOLOGY FORM THREE EXAMINATION

INSTRUCTIONS

Hello there, Form Three Biology whizzes!

This exam is your chance to shine and show what you've learned. It's divided into three sections: A, B, and C.

• Sections A and B are a MUST-DO: Please answer ALL the questions in these two sections.
• Section C: Your Choice! Pick any TWO questions from this section to answer.
• A Little Neatness Goes a Long Way: Write your answers clearly and in a way that's easy to read. Let's make it a pleasure for the marker!

Good luck – you've got this!

SECTION A: (20 Marks) - Test Your Knowledge!

• Answer every question in this section.

1. Multiple Choice Challenge (10 Marks)

   • For each question, select the BEST answer from the options given. Write down the letter (A, B, C, or D) that corresponds to your chosen answer.

   I. Imagine you're identifying a plant. Which of these clues tells you it's likely a Coniferophyta?

   A.  It has seeds tucked away inside a fruit.
   B.  It doesn't produce flowers.
   C.  It needs lots of water for its seeds to develop.
   D.  It has wide, flat leaves.
   

   II. Xylem is like the plant's plumbing system. What does it mainly transport in conifers?

   A.  Food (sugars, etc.)
   B.  Water and minerals from the roots
   C.  Seeds
   D.  Cones
   

   III. Which of these trees is a classic example of a conifer?

   A.  Rose bush
   B.  Sunflower plant
   C.  Pine tree
   D.  Maize plant
   

   IV. Where would you typically find the male cones on a pine tree?

   A.  Right at the very top
   B.  Down at the bottom of the trunk
   C.  In clusters, nestled where the lower branches meet the stem
   D.  Attached to the female cones
   

   V. How do male sex cells get to the female parts in conifers?

   A.  They swim through water.
   B.  They're carried by wind or sometimes insects.
   C.  Animals transport them.
   D.  The plant does it all by itself.
   

   VI. Our skeletal system is pretty amazing. Which of these is one of its key jobs?

   A.  Digesting food
   B.  Providing support and protecting our organs
   C.  Getting rid of waste
   D.  Making babies
   

   VII. Think about your elbow. What kind of joint is it?

   A.  Like a ball fitting into a socket (lots of movement)
   B.  Like a door hinge (back and forth)
   C.  Like one bone rotating on another
   D.  Like bones sliding past each other
   

   VIII. Ligaments are important connectors in our bodies. What do they connect?

   A.  Muscle to bone
   B.  Bone to bone
   C.  Provide cushioning at joints
   D.  Produce blood cells
   

   IX. What's the endocrine system's role in coordinating our body functions?

   A.  Sending electrical signals super-fast
   B.  Using hormones as chemical messengers
   C.  Cleaning our blood
   D.  Getting oxygen to our cells
   

   X. What's a major function of our kidneys?

   A.  Breaking down food
   B.  Helping us breathe
   C.  Getting rid of waste products
   D.  Enabling us to have children
   

2. Matching Challenge (10 Marks)

   • Let's see if you can pair things up! Match the items in List A with the correct descriptions in List B. Write the number and the corresponding letter (e.g., I. F).

   List A

   I. Tracheids II. Hinge joint III. Neurons IV. Ureter V. Ovary VI. Pollination

   List B

   A. The tube that carries urine from your kidney to your bladder B. The part of a flower where the seeds develop C. The basic building block of your nervous system (a nerve cell) D. A joint that lets you bend and straighten (like your elbow or knee) E. The transfer of pollen, so a plant can make seeds F. Specialized cells in xylem that help transport water G. The part of a flower that produces pollen

SECTION B: (42 Marks) - Short Explanation Time!

• Answer all questions in this section.

3. Why is movement so important for animals? Give several reasons. (6 Marks)
4. What are the different jobs that our skeletal system does for us? (6 Marks)
5. In simple terms, what's the key difference between a tendon and a ligament? (6 Marks)
6. Describe what a neuron looks like and explain how it works to transmit messages. (6 Marks)
7. What are the main things the endocrine system does to keep our bodies functioning? (6 Marks)
8. What does the kidney do for us? (6 Marks)
9. Why is meiosis such a crucial process in reproduction? (6 Marks)

SECTION C: (18 Marks) - Time to Elaborate!

• Answer any two questions from this section.

10. Imagine you're teaching someone about Coniferophyta. What are the general characteristics of this group, and what makes them stand out from other plants? (9 Marks)
11. Walk me through the steps of sexual reproduction in a flowering plant, from start to finish. (9 Marks)
12. What are the essential features of how mammals reproduce? (9 Marks)