Unit 3 Biology

They keep the plants erect and hold up the leaves.

It is the mixture of water and minerals absorbed through the roots.

These are plant responses in which plants direct their growth towards or away from a stimulus.

It occurs in response to water. This occurs in roots, which tends to grow towards water in the soil.

They are plants with seeds that are not in a fruit.

They are plants with seeds in a fruit.

They grow into the soil and their job is to absorb water and minerals.

Sexual reproduction is carried out via gametes. True or False?

It occurs in response to gravity. This is most evident in roots, which grow in the direction of gravitational pull (downwards).

When plant respire, they absorb oxygen which is used by their mitochondria to obtain energy from the carbohydrates produce there. True or False?

Plants with seeds, are called ___.

Plants are constantly respiring. True or False?

It produces the male gametes.

It occurs in response to physical contact. This phenomenon is evident in creepers or climbing plants which grow up around the objects with which they come into contact.

It contains the reproductive organs of the plant.

Carbon dioxide enters the plant mainly through tiny pores called ___.

It produces female gametes.

Photosynthesis produces carbon dioxide as a waste product. True or False?

Respiration produces gas and a waste product, carbon dioxide. True or False?

Sexual reproduction in plants can be carried out through bud formation, fragmentation or spores. True or False?

Plants are ___ because they produce their food through photosynthesis.

These are the tubes located inside the stems where the substances are distributed throughout the plant.

Plant nutrition consists of three processes: absorbing water and minerals, ___, and carrying out photosynthesis.

They are organs that plant uses to create it’s most own nutrients.

It occurs in response to light. For example, the stems of plants grow towards the light.