PHS Science Quiz Bowl Lower Matayom Biology 2018

Question 1

Which of the following is not an arachnid?

Accepted Answer

lobster

Question 2

Proteins that cause reactions to proceed more rapidly and lower the energy of activation are

Accepted Answer

enzymes

Question 3

What process in all living things releases carbon dioxide as a waste product?

Accepted Answer

respiration

Question 4

The muscle which is under involuntary control is:

Accepted Answer

smooth

Question 5

Nitrogen fixation is accomplished by:

Accepted Answer

bacteria

Question 6

Cholesterol, testosterone, and estrogen are all examples of:

Accepted Answer

steroids

Question 7

Each of the following is a cell organelle. Which one of these is NOT a cell organelle?

Accepted Answer

cytoplasm

Question 8

Octopus and squid belong to the class of molluscs known as:

Accepted Answer

cephalopoda

Question 9

The vertebrate eyeball is bounded anteriorly by what convex, transparent object?

Accepted Answer

cornea

Question 10

In flowers the terminal part of a stamen, containing the pollen sacs is known as the:

Accepted Answer

anther

Question 11

In the first stage of photosynthesis, light energy is used to:

Accepted Answer

split water

Question 12

In a plasma membrane, which of the following provides a barrier to the movement of molecules?

Accepted Answer

lipids

Question 13

A plant which completes its life cycle, from seed to seed, in a single growing season is called

Accepted Answer

annual

Questions 13