2024 Semster 1 Final - BIO 1

Front

What are the main components of the cell membrane?

Back

The cell membrane is primarily made of lipids, specifically phospholipids, along with proteins and carbohydrates.

Front

What are limiting factors in population growth?

Back

Limiting factors are environmental conditions that restrict the growth, abundance, or distribution of an organism or a population.

Front

Define carrying capacity.

Back

Carrying capacity is the maximum number of individuals of a particular species that an environment can sustainably support.

Front

What characterizes prokaryotic cells?

Back

Prokaryotic cells do not have a nucleus; their DNA is free-floating in the cytoplasm.

Front

What is the role of cellular respiration?

Back

Cellular respiration is the process that transforms sugar into a usable form of energy (ATP) for cells.

Front

What is the structure of a phospholipid?

Back

A phospholipid consists of a hydrophilic (water-attracting) 'head' and two hydrophobic (water-repelling) 'tails'.

Front

What is the difference between biotic and abiotic factors?

Back

Biotic factors are living components of an ecosystem (like plants and animals), while abiotic factors are non-living components (like water, sunlight, and temperature).

Front

What is ATP and its significance in cellular processes?

Back

ATP (adenosine triphosphate) is the energy currency of the cell, providing energy for various cellular processes.

Front

What is the function of proteins in the cell membrane?

Back

Proteins in the cell membrane serve various functions, including transport, acting as channels or carriers, and facilitating communication between cells.

Front

How do populations reach their carrying capacity?

Back

Populations reach their carrying capacity when the birth rate equals the death rate, and resources become limited.